brochure coating raw materials for building protection 14-06-2011 e

Polyisocyanates PrePolymers DisPersions UV systems

C O A T I N G R A W M A T E R I A L S

F O R B U I L D I N G P R O T E C T I O N

2

r rn nH H

o

3

Desmolith®

Desmodur®

Bayhydur®

Desmophen®

Bayhydrol®

Desmocap®

introDUction 5

General inFormation 6

tecHnoloGies

two-component polyurethane (solvent-free/solventborne/aqueous) 7–9

one-component polyurethane (aliphatic/aromatic/latent hardeners) 10

other technologies (Desmocap®/Desmolith®) 11–12

Polyurea (aliphatic/aromatic) 13

aPPlications

industrial flooring 15

sports flooring 17

Decorative flooring 19

Hygiene areas 21

Parking decks 23

Flat roofs 24

Balconies & patios 25

Garages & basements 26

Walls & facades 27

Products & key figures 28–29

abbreviations in tables 30–31

CONTENTS

Polyisocyanates PrePolymers DisPersions UV systems

5

stability, reliability and safety are top pri-

orities in the construction industry.

that is why the production of customized,

high-quality construction materials has

always been a key market segment for us.

Bayer materialscience produces a compre-

hensive range of polyurethane raw materi-

als for a variety of applications in the field

of construction. the coatings, adhesives

and specialties (cas) Business Unit mar-

kets these polyurethane raw materials for

manual application on construction sites.

they are used to manufacture sports and

industrial flooring and coatings for roofs

and in many other special construction

applications.

Whether they are helping hospital floors

to comply with hygiene standards and

vehicles to find the right grip on parking

decks or simply protecting concrete patios

in homes from corrosion, the chemical

formulation of polyurethane coatings can

be adapted to meet every need and, in

special cases, can even be given decorative

properties.

Why not glance through the next few pages

and see the outstanding quality of Bayer

materialscience products for yourself?

check out the chemical properties of poly-

urethane products and gain an insight into

the one- and two-component technolo-

gies used to manufacture multifunctional

construction materials. these processes,

together with Desmocap®, Desmolith®

and polyurea technologies, form build-

ing blocks for the wide range of possible

applications.

Familiarize yourself with the numerous

areas of application of this successful

product technology. see how the diver-

sity and capabilities of polyurethanes from

Bayer materialscience can help you to

resolve demanding tasks.

Did you know that polyurethane grades

from Bayer materialscience supply almost

a quarter of the demand for coating raw

materials on the european market? that’s

around 50,000 metric tons in total. these

figures speak for themselves – and for

us. there are good reasons why we are

the market and technology leader in poly-

urethane raw materials. in addition to our

extensive range of products, we offer cus-

tomers a comprehensive technical service

and are an expert and dependable partner

for the processing construction industry.

Put us to the test! We will find the perfect

solution for you.

INTRODUCTION

6

in general usage, the term polyurethane

is used for the product of reactions

between polyisocyanates and polyalco-

hols, polyamines and/or water, whereby

the latter can be in the form of liquid or

moisture in the air. in reality, however, not

every polyurethane formulation is suitable

for the same areas of application. careful

distinctions must be made.

With the exception of diphenylmeth-

ane diisocyanate (mDi), which is unique

because of its low vapor pressure and

correspondingly low volatility, monomer

diisocyanates such as toluene diisocy-

anate (tDi), hexamethylene diisocyanate

(HDi) or isophorone diisocyanate (iPDi)

are, for industrial hygiene reasons, used in

the coating sector only as high-molecular

polymers (adducts, homopolymers, pre-

polymers). in the production of polyisocy-

anate coating raw materials, the main aim

is to achieve the lowest possible residual

monomer content.

coating materials also differ in the way

they are processed. in the case of two-com-

ponent technology, two components are

mixed homogeneously prior to processing

the structural protection product, result-

ing in a reaction mix that needs to be

processed within a limited period of time.

one-component technology, by contrast,

requires no mixing to stimulate the reac-

tion between a formulated polyisocyanate

and moisture in the air and thereby allows

long processing times.

T E C H N O L O G I E S

GENERAL INFORMATION

7

Solvent-free two-component poly-

urethanes

Use of solvent-free raw materials allows

coatings of any thickness to be produced.

the two-component polyurethane systems

therefore consist of solvent-free polyalco-

hol and polyisocyanate components.

the functionality of both these compo-

nents, their molecular weight and the

chemical structure are instrumental in

determining the mechanical properties and

resistance to chemicals of the reaction

product.

low functionality (but of at least 2)

and a high molecular weight, for exam-

ple, produce plastic to elastic coatings

with low chemical resistance. However,

if the functionality of reactants is high

and their molecular weight low, the result

is extremely hard coatings with excellent

chemical resistance.

the solvent-free two-component poly-

urethane systems are usually hydrophobic.

this largely prevents the competing chemi-

cal reaction with air moisture, which gener-

ates carbon dioxide and should therefore

be avoided. although air moisture enters

the reaction system through the addition

of fillers and pigments, the use of water

scavengers prevents the polyisocyanate

coming into contact with it. Zeolites with

an adsorbent effect are normally added.

these types of standard polyurethane

systems based on polyether ester poly-

alcohols and, where possible, modified

polymer mDi harden at temperatures of

between 5 °c and 30 °c, even at a relative

humidity of over 90 %. the result is a pore-

free coating of high thickness and excellent

surface quality.

There are three different types of two-component polyurethane technology: solvent-free,

solventborne and aqueous.

S O L V E N T - F R E E , S O L V E N T B O R N E , A Q U E O U S

F= ‹ 3; 3 ‹ ‹ 3.4; ≥ 3.4* at 25 °c

* at 25 °c

Desmodur® Characterization Supply form

Viscosity [mPa·s at 23 °C]

Functionality NCO- content

Emulsifi- ability

TSCA

VH 20 n mDi polymer, low viscosity 100 % 280* 24.5 % no yes

Vl mDi polymer, low viscosity 100 % 90* 31.5 % no no

n 3900 HDi trimer, low viscosity 100 % 730 23.5 % no yes

Desmophen® Characterization Supply form


Eq. weight OH-content Solvent content

TSCA

1145 Polyether ester polyol 100 % 2,950 240 7.1 % 0 % yes

1150 Polyether ester polyol 100 % 3,500 360 4.7 % 0 % yes

1155 Polyether ester polyol 100 % 425 340 5.0 % 0 % yes

5028 Gt Dispersion polyether 100 % 3,600* 1.970 0.9 % 0 % yes

1380 Bt Polyether 100 % 600* 146 11.7 % 0 % yes

VP ls 2068 Polyester polyol 100 % 950 315 5.4 % 0 % yes

VP ls 2249/1 Polyester polyol 100 % 1,900 110 15.5 % 0 % yes

c 1100 carbonate polyester polyol 100 % 3,200 500 3.3 % 0 % yes

r-n=c=oPolyisocyanate

r’-oHPolyalcohol

Polyurethane

r r’nH

o

o

r-n=c=oPolyisocyanate

r’-nH2amine

Polyurea

r r’n nH H

o

TWO-COMPONENT

POLYURETHANE TECHNOLOGY

tecHnoloGies aPPlications

8

Solventborne two-component poly-

urethanes

the solvents used in these two-component

polyurethane systems limit the coating

thickness and prevent foaming. However,

it is also possible to use more hydrophilic

substances whose viscosity can be set via

the volume of solvent. solventborne two-

component polyurethane systems are used

mostly in the production of topcoats. the

properties of these topcoats (e.g. gloss,

abrasion resistance and chemical resist-

ance) can be adjusted to meet the customer’s

needs and wishes. this type of coating has

reliably protected concrete surfaces from

environment-related attacks for many years

thanks to its exceptional properties – in par-

ticular its weathering resistance in outdoor

applications. our decades of experience in

selecting binder components and formula-

tions enable properties to be customized

to different requirements.

F= ‹ 3; 3 ‹ ‹ 3.4; ≥ 3.4




Emulsifi- ability

TSCA

n 75 mPa/X HDi biuret, low viscosity 75 % 250 16.5 % no yes

XP 2406iPDi prepolymer, very low viscosity

80 % 7,000 2.8 % no yes




TSCA

651 mPa/X Polyester polyol 67 % 25,000 310 5.5 % 33 % yes

rD 181 Polyester polyol 75 % 7,500 460 3.7 % 25 % yes

9

Aqueous two-component polyurethane

technology

as with any polyurethane, to produce

aqueous polyurethane coatings hydroxyl

groups must react with isocyanate groups.

this is the chemical basis. However, this

process has one special feature – the bind-

ers consist of an aqueous dispersion com-

ponent and a hydrophilic polyisocyanate.

this means that a secondary reaction takes

place between the isocyanate groups and

water. Urea groups are formed during this

process. the scope of this reaction is much

smaller than the reaction resulting in poly-

urethane. this is because the reaction rate

is slower. also the water evaporates from

the coating film relatively quickly after

application.

two-component polyurethane technology

has another benefit, however. By selecting

suitable raw materials and additives, the

crosslinking reactions can be controlled

accurately. Pot life and cure time can also

be decoupled using internally activated

dispersions, such as Bayhydrol® a 2546

and Bayhydrol® a 2646. Final hardness can

thus be reached much more quickly at the

same pot life, or the hardening reaction

can take place at lower temperatures.

the above low Voc dispersions are best

combined with low-viscosity solvent-free

hydrophilic polyisocyanates (Bayhydur®

XP 2451 and Bayhydur® XP 2547). these

can be easily incorporated and are ideal

for low-Voc topcoats. such coatings lend

themselves especially well to indoor use as

they meet the very high demands of indoor

environments with respect to air quality.

F= ‹ 3; 3 ‹ ‹ 3.4; ≥ 3.4

Bayhydur® Characterization Supply form



Emulsifi- ability

TSCA

XP 2451*HDi trimer/uretdione, hydrophilic

100 % 1,200 18.5 % yes yes

XP 2547HDi trimer, slightly hydrophilic

100 % 650 22.5 % yes yes

Bayhydrol® Characterization Supply form


Neutral. amine

OH-content Cosolvent content

TSCA

a 2457 Primary Pac dispersion 41 % ‹ 100 nH3 1.1 % 0 % no

a 2542 secondary Pac dispersion 50 % 1,500 –3.000 trieta 2.7 % 1.1 % PnB yes

a 2546 Primary Pac dispersion 41 % ‹ 200 nH3 1.7 % 0 % yes

a 2646 secondary Pac dispersion 50 % 1,500 –3,000 trieta 2.7 % 1.1 % PnB yes

PnB = Dowanol PnB, oH-functional/eDiPa = ethyldiisopropylamine/trieta = triethanolamine

Secondary reaction

Main reaction r-n=c=oPolyisocyanate

r’-oHPolyol dispersion Polyurethane

r r’nH

o

o

r-nH22. r-n=c=o r rn nH H

o

1. r-n=c=o H2o r-nH2 co2

1. + 2. H2oWater

2 r-n=c=oPolyisocyanate

Polyurea carbon dioxide

r rn nH H

o

co2


* not for spray application

1 0

one-component coatings react with water,

which is present as substrate or air mois-

ture almost everywhere. the second com-

ponent needed for the hardening process is

therefore delivered to your doorstep free of

charge, so to speak, thus avoiding any uncer-

tainty as to whether the two components are

mixed homogeneously.

carbon dioxide is produced during the

hardening reaction. one-component poly-

urethane products based on this conven-

tional process must therefore be used in low

coating thicknesses, mostly in conjunction

with solvents. this stops blisters forming in

the coating.

Use of latent hardeners triggers a type of

chain reaction. Just one water molecule pro-

vides several reactive groups for the reaction

with the latent hardener. as a result, less

carbon dioxide is produced and significantly

thicker coatings can be applied without blis-

ters forming.

Because of the limited coating thickness it

generates, this technology is particularly suit-

ed to seals and impregnation. elastomer or

duromer coating films with different degrees

of weathering resistance are formed depend-

ing on the prepolymer (aromatic, Desmodur®

e grades) and low-viscosity aliphatic polyiso-

cyanate (Desmodur® n) used.

the underlying products achieve good pene-

tration into absorbent substrates. moreover,

the end products are incredibly tough, abra-

sion-resistant and highly resistant to water,

chemicals and solvents.

one-component polyurethane technology

offers yet another attractive possibility – highly

filled, mortar-like coatings used mainly without

solvents. after hardening, these products form

breathable, open-pore coatings with thick-

nesses of between 4 and 10 mm. if required, a

liquid-tight surface can also be created using

an additional seal. Practical application can be

found both in load-transforming topcoats and

decorative gravels.




Emulsifi- ability

TSCA

n 3900 HDi trimer, very low viscosity 100 % 730 23.5 % no yes

n 3400 HDi uretdione 100 % 150 21.8 % no yes

e 21 mDi prepolymer 100 % 5,400* 16 % no yes

e 23 mDi prepolymer 100 % 1,800 15.4 % no yes

e 29 mDi prepolymer 100 % 220* 24.0 % no yes

Z 4470 iPDi trimer 70 % 2,000 11.9 % no yes

XP 2406 iPDi prepolymer 80 % 7,000 2.8 % no yes

Hardener VP ls 2959

aliphatic latent hardener 100 % 3,000 – no yes

F= ‹ 3; 3 ‹ ‹ 3.4; ≥ 3.4* at 25 °c

1. r-n=c=o H2o

r-nH22. r-n=c=o

co2

H2oWater

1. + 2. 2 r-n=c=oPolyiso- cyanate

carbon dioxide

co2

r rn nH H

o

r-nH2

Polyurea

r rn nH H

o

A L I P H A T I C , A R O M A T I C , L A T E N T H A R D E N E R S

ONE-COMPONENT POLYURETHANE

TECHNOLOGY

1 1

the Desmocap® product range consists of

blocked prepolymers that react with pri-

mary amines at room temperature. their

primary function over the last 30 years or

so has been to elasticize epoxy resins that

become brittle during curing. Hard/soft

segmentation of the binder takes place

during curing, giving the materials crack-

bridging properties over a wide range of

temperatures. thanks to low glass tran-

sition temperatures, this is also true at

temperatures well below the freezing point

of water. another advantage of these prod-

ucts is their durability. Unlike with stand-

ard plasticizers, the polyurethane structure

is incorporated into the polymer network

chemically. the resulting low-temperature

flexibility is particularly important when

materials are used as crack-bridging mem-

branes and seals, especially in outdoor

applications where special resistance to

temperature change is required. after all,

changes in daily and seasonal tempera-

tures present a challenge to every coating

material. if epoxy resin components are

not used, the cured Desmocap® products

form elastomers that are used, among

other things, in casting compounds for

soundproofing.

Desmocap® Characterization Supply form


Eq. weight* OH-content Solvent content

TSCA

11 Blocked tDi prepolymer 100 % 100,000 930 – 0 % yes

12 Blocked tDi prepolymer 100 % 40,000 1,500 – 0 % yes

* with regard to eP

reaction of a blocking polyurethane with a diamine

Polyether

Polyether

r o

o o

oo o

o o

H H

n n

n n

H H

r

2 r oH-r

+ 2 H2n nH2

r nH

o o

nH

o oo o

H H

n n

n n

H H

rH2n nH2

DESMOCAP® TECHNOLOGY

O T H E R T E C H N O L O G I E S


1 2

this is a pseudo-aqueous three-compo-

nent system without solvent-free polyalco-

hol. instead, it uses an aqueous emulsion

of polyalcohols and an mDi-based polyiso-

cyanate. the addition of reactive fillers

such as hydrated lime as the third compo-

nent prevents the otherwise unavoidable

formation of carbon dioxide. the end result

is a fine calcium carbonate embedded in a

polyurea shell.

this produces robust coating materials

with outstanding temperature stability and

high chemical resistance – covering every-

thing from sealers to screeds.

F= ‹ 3; 3 ‹ ‹ 3.4; ≥ 3.4




Emulsifi- ability

TSCA

Vl mDi polymer, low viscosity 100 % 90 31.5 % no no

XP 2551mDi polymer, very low viscosity

100 % 60 32 % no yes

Desmolith® Characterization Supply form

Viscosity [mPa·s]


TSCA

VP ls 2766 Polyol alcohol emulsion 90 % 1,200 110 16 % 0 % yes

XP 2656 Polyol alcohol emulsion 70 % 150 425* 3 % 0 % yes

XP 2761 Polyol alcohol emulsion 70 % 200 565* 3 % 0 % yes

* calculated

1. co22 r-n=c=o

3. H2oca(oH)2

2. 2 r-n=c=o

1. + 2. + 3. caco32 r-n=c=o

Secondary reaction r-n=c=o

H2o r-nH2

co2 caco3

r rn nH H

o

r-nH2

r rn nH H

o

ca(oH)2

r’-oH r rnH

o

o

DESMOLITH® TECHNOLOGY

1 3

not only do polyisocyanates react with

water, leading to a moisture-curing effect,

they also react with amines, leading to the

formation of polyurea. this process is then

classed as a two-component technology.

there is one major difference to the for-

mation of polyurethane. compared with

polyalcohols, most amines are highly

reactive and therefore particularly suited

to injection applications. such injection

systems are based on mDi prepolymers

(Desmodur® e) and ether amines. they

have pot lives of seconds.

the coatings achieved in this way are par-

ticularly thick. the mechanical properties

of the coatings can be varied significantly

however you choose – from highly flexible

to ultra hard. Hand-processable coating

compounds can also be formulated using

sterically hindered amines. these materi-

als are ideal for use in seals and mem-

branes due to their elastic properties over

a wide range of temperatures.

compared with sterically hindered grades,

the reactivity of secondary aliphatic amines

(Desmophen® nH – polyaspartics) is also

limited. When combined with aliphatic

polyisocyanates, they form lightfast coat-

ing materials. the choice of secondary

amine determines the pot life and process-

ing time, which can range from a few

seconds to a few hours depending on your

needs.

F= ‹ 3; 3 ‹ ‹ 3.4; ≥ 3.4




Emulsifi- ability

TSCA

n 3900 HDi trimer, very low viscosity 100 % 730 23.5 % no yes

n 3600 HDi trimer, low viscosity 100 % 1,200 23.0 % no yes

VH 20 nmodified mDi, very low viscosity

100 % 280* 24.5 % no yes

e 2200/76mDi prepolymer, medium viscosity

100 % 2,750* 9.9 % no yes

XP 27274.4’ mDi prepolymer, low viscosity

100 % 800 15.3 % no yes

e 15tDi prepolymer, medium viscosity

100 % 7,000 4.4 % no yes

VPls 2371iPDi prepolymer, medium viscosity

100 % 11,000 3.7 % no yes



Eq. weight NH-content Solvent content

TSCA

nH 1220secondary amine, highly reactive

100 % 100* 234 6.4 % 0 % yes

nH 1420secondary amine, medium reactive

100 % 1,450* 276 5.4 % 0 % yes

nH 1520 secondary amine, reactive 100 % 1,400* 290 5.2 % 0 % yes

Hardener DtPrimary amine, highly reactive

100 % 200 90 16.7 % 0 % yes

POLYUREA TECHNOLOGY

* at 25 °c

* at 25 °c


1 5

industrial flooring in production plants and

warehouses must be extremely resistant

to a number of factors, from chemicals and

water to mechanical, dynamic and thermal

stresses. if the right quality standards are

not met, any damage or signs of wear in

the concrete substrate quickly become a

safety risk, disrupt production routines and

give rise to additional costs.

tough to super-hard synthetic resin coating

systems have therefore been used in the

automotive, food, pharmaceutical, electri-

cal, metal and chemical industries for many

years to provide effective protection for

indoor floors exposed to extreme stresses.

thanks to its range of properties, which

is as broad as it is varied, polyurethane is

increasingly the material of choice. around

one-quarter of the many millions of square

meters of industrial flooring existing world-

wide is coated in polyurethane. it provides

a durable and cost-effective solution.

With ease of cleaning and outstanding slip

and abrasion resistance being common

to all applications, design-friendly poly-

urethane coatings for industrial flooring can

also be customized to meet precise require-

ments, whether these relate to electrical

conductivity, antibacterial properties or

emissions behavior. What’s more, because

of their toughness, polyurethane systems

can also be used to coat asphalt screeds.

all in all, polyurethane coatings can meet

even the toughest of demands and con-

tribute substantially to the long-lasting

functionality of industrial flooring. they

can be applied using common procedures,

set new technical safety standards and

even reduce production noise – much to

the delight of staff working there. they

also provide good grip for the omnipresent

forklifts on factory floors.

Primer,one-component moisture-curing

leveling layer, two-com-ponent solvent-free

topcoat, two-com-ponent solvent-free

seal, one-component aliphatic, one-component aromatic, two-component solventborne or two-component aqueous

I N D U S T R I A L F L O O R I N G

QUALITY IN PRODUCTION AND STORAGE


1 7

Polyurethane is incredibly sporty for a plas-

tic. Used as a point or area elastic cover-

ing for sports flooring both indoors and

outdoors, smart polyurethane coatings

ensure the perfect bounce for basketball

or handball players, a must-have property

in this field.

track and field athletes also benefit from

the optimal and customizable elastic prop-

erties of polyurethane systems for sports

halls and outdoor facilities. the good

rebound properties and outstanding slip

resistance of running surfaces coated in

polyurethane systems helps achieve top

sporting results.

alongside the excellent elasticity of largely

wear-resistant polyurethane sports surfaces,

the risk of injury is also reduced greatly – for

all sports. surfaces coated in this way pro-

vide excellent grip, spare athletes’ physiol-

ogy and cushion impact.

suitably formulated polyurethane coatings

meet international quality standards for

the use of plastic in sports flooring and

extend the service life of these surfaces.

the variable hardness of polyurethane top-

coats even meets the strict requirements

needed for physiotherapy.

What is more, polyurethane systems are

used to coat the floors of multi-purpose

halls. multiple coatings are recommended

in this case to withstand the higher loads

of mass events, table and chair legs or

stiletto heels. Besides, any damage that

does occur can usually be repaired quickly

and simply.

Primer

rubber granule mat

self-leveling topcoat,aromatic two-compo-nent polyurethane

Pore filler, aromatic two-component poly-urethane

seal, aliphatic two-com-ponent polyurethane

marks

S P O R T S F L O O R I N G

A REAL TEAM PLAYER –

MADE OF PLASTIC


1 9

ever greater demands are being made of

flooring in public and commercial estab-

lishments such as administration build-

ings, offices, foyers, exhibition and concert

halls, shops and malls. But it is not just

a question of functionality. in addition to

the usual considerations – such as ease of

cleaning, excellent durability, antiallergenic

aspects, cost-effectiveness and above-

average safety – greater emphasis is now

being placed on decorative properties. as

well as fulfilling their actual purpose, high-

ly stressed large areas of flooring also have

to look good.

the extensive properties of polyurethane

open new doors for attractive and high-cal-

iber artistic floor design. additional color

chips or other design elements can easily

be added to the transparent or single-color

synthetic resin matrix during application.

Uninspired flooring thus becomes stylish-

ly designed “polyurethane carpets” that

are colorful, jointless, non-yellowing and,

above all, much more resilient than their

textile counterparts.

self-leveling polyurethane floor coatings

allow you to combine all the advantages of

polyurethane technology, with its proven

track record extending over decades, with

a decorative design and a high degree of

design flexibility.

the outcome is a real work of art that can

withstand even heavy loads with barely

a scratch thanks to the tough, impact-

resistant and chemical-resistant topcoat.

and if any damage is incurred, it can easily

be repaired – as with other polyurethane

floor coatings. they just need to be sanded

down to the necessary level and resealed

with a transparent coating.

Primer,one-component moisture-curing

leveling layer, two-com-ponent solvent-free

topcoat, two-component solvent-free

seal, one-component aliphatic, one-component aromatic, two-component solventborne or two-component aqueous

D E C O R A T I V E F L O O R I N G

GIVE YOUR EYES A TREAT


2 1

Hygienic areas pose a particularly impor-

tant challenge for the developers and sup-

pliers of modern raw materials and coating

systems for floors. these areas include

production and storage areas for the phar-

maceutical and food industries and their

distributors, schools, kindergartens, hos-

pitals and nursing homes.

High-performance high-end floor coat-

ings with added functions are increasingly

being used in such places to protect peo-

ple and their health. after all, all potential

health risks must be contained in these

highly sensitive areas to maximize long-

term safety and hygiene. Heavily frequent-

ed floors are a breeding ground for mold

and bacteria especially if they are offered

a welcome recess in the form of hard-to-

clean joints.

Because polyurethane coating systems

are ideal for jointless use on large use-

able areas, they are often used for hygi-

enic applications. in addition to their good

mechanical properties and long-lasting

protection for floors, a decisive factor in

their favor is the ease with which they

can be cleaned and maintained. By fine-

tuning the parameters, extremely high

chemical resistance can also be achieved

as is required to withstand various clean-

ing routines or in pharmaceutical research

and production. optionally, polyurethane

systems can also be given antibacterial

properties by applying a suitable additive.

if the top priority is to protect health and

thus significantly improve safety, as is the

case in hygienic areas, polyurethane coat-

ing systems are the ideal solution.

H Y G I E N E A R E A S

HEALTH AND SAFETY ARE PARAMOUNT

Primer,three-componentDesmolith®

leveling layer, three-component Desmolith®

Wearing layer,three-component Desmolith®


2 3

you would never know it from first sight,

but the reinforced concrete floors of park-

ing decks have a lot to put up with. not

only do they have to withstand the weight

of cars, but their lanes, entrances and

exits must also make drivers feel safe and

secure at all times.

thanks to their exceptional slip resist-

ance and high mechanical and dynamic

load-bearing capacity, viscoplastic and

abrasion-resistant polyurethane coatings

are ideal for large-scale use on parking

deck substrates. Jointless and usually

processed in combination with epoxy resin

primers, they bridge the cracks in concrete

surfaces that are unavoidable due to con-

sistently heavy loads and easily cope with

road salt, automobile fluids and rainwater.

the underlying steel structure is thus per-

manently protected against corrosion.

since older cars in particular have a ten-

dency to leak, the polyurethane coat-

ings on parking decks also stop harmful

substances leaching into the earth and

groundwater and thus protect the environ-

ment. all this while providing excellent

reliability, optimal surface grip even in

the rain, no-fuss cleaning and resistance

to temperature change and weather all

year round. Parking lot operators therefore

have an extremely cost-effective technol-

ogy at their disposal.

there is one more decisive advantage.

While more costly high-tech systems are

generally used on top and bottom decks

due to higher stress levels from wind and

weather and on the lower levels due to

more frequent parking, simpler solutions

are usually adequate on intermediate lev-

els. Parking space safety is still ensured

in all cases and comes complete with all

the generous decorative design options

offered by polyurethane.

Primer

leveling layer

Wearing layer, aromatic two-component polyurethane

seal,polyurea

seal, aliphatic two-com-ponent polyurethane

P A R K I N G D E C K S

A STRONG COATING

FOR PARKING SPACES


2 4

a house is not complete without a roof. it

provides security and protects against the

cold, rain, wind and weather.

it is therefore all the more important to

protect the roof itself from harmful exter-

nal influences with elastic polyurethane

coating systems using raw materials from

Bayer materialscience. this application

shows polyurethane at its very best – flex-

ible even at high and low temperatures,

crack-bridging and consistently waterproof

despite good water vapor transmission.

With customized formulations to meet

the relevant international, national or

regional legal standards, flame-retardant

polyurethane coatings also improve safety

in buildings. and by using light-resistant,

non-yellowing raw material components,

they also reflect some of the sun’s rays. in

a nutshell, polyurethane flat roof seals play

a major role in lengthening the service life

of real estate and thus boost its usability

and resale value.

Primer

1st lamination layer,aliphatic or aromatic one-component or two-component polyurethane

2nd lamination layer, aliphatic or aromatic one-component or two-component polyurethane

Fabric

seal, aliphatic oraromatic two-component polyurethane

F L A T R O O F S

SLEEP SECURELY WITH POLYURETHANE

OVERHEAD

2 5

like roofs, balconies and patios are exposed

to fl uctuating climatic conditions – not only

between day and night but also between

the seasons.

load-bearing concrete substrates and their

steel reinforcements can be effectively

protected against corrosion from moisture

penetration and at the same time given

decorative properties by applying an all-

over layer of polyurethane membranes. in

addition to exemplary weathering stability,

another particularly appealing feature is

the option of fi ne-tuning the mechanical

strength of the formulation. on the one

hand it has to be such that balcony chairs

and tables do not damage the coating,

on the other the higher slip resistance

required for enhanced safety must not

mean that they stick to the fl oor – this is

absolutely no problem with polyurethane.

and if the building owner opts for a lightfast

aliphatic system, this delivers added pro-

tection against premature aging by the sun.

oldceramic tiles

Bonding agent

self-leveling topcoat, aliphatic one-com-ponent or two-component polyurethane

PVc chips

Primerseal, aliphatic two-com-ponent polyurethane

B A L C O N I E S & P A T I O S

CLIMATE-STABLE FOUNTAIN OF YOUTH

FOR LEISURE AREAS


2 6

Polyurethane floor applications are being

used increasingly to protect basements

and garages in private households from

wear and tear and premature aging. the

concrete substrate in garages has to with-

stand heavy loads and aggressive automo-

bile fluids.

it therefore makes perfect sense to use

hydrolysis-resistant and chemical-resistant

floor coatings with a wide range of mecha-

nical, dynamic and thermal properties. car

tires must not be able to leave unsightly

prints on the garage floor even if left stan-

ding for extended periods. this is where

comparatively hard polyurethane systems

of the kind used in automobile showrooms

come into their own.

Polyurethane coatings are also ideal

because they harden and dry quickly after

processing, produce almost no emissions

during application, are available in attrac-

tive colors and are slip-resistant, resilient

and easy to maintain in everyday use.

Primer, aromatic one-component polyurethane or two-component polyurethane, aqueous (‹ 100 µm)

seal, aromatic one-component or aliphatic two-component polyurethane, aqueous, solventborne or polyaspartic 1–2 x 100 µm

G A R A G E S & B A S E M E N T S

ABSOLUTELY INDESTRUCTIBLE –

YEAR AFTER YEAR

2 7

When it comes to protective surface coa-

tings for interior walls and exterior facades,

the track record of high-caliber polyuretha-

ne systems is as impressive as it is for any

other application. Formulations with high

crosslinking densities, optimized chemical

resistance and ease of cleaning are chosen

over competing but less effective technolo-

gies in, for instance, public buildings such

as hospitals, nursing homes, schools and

kindergartens.

local, state and national authorities also

use such easy-to-clean solutions for out-

door areas. the impressive weathering

resistance and sealing properties (even in

driving rain) and good water vapor diffu-

sion properties of polyurethane systems

are all excellent reasons for using high-

quality polyurethane construction mate-

rials based on raw materials from Bayer

materialscience.

What is more, polyurethane products offer

outstanding protection against carbona-

tion, thus improving safety. When used

to coat bridges, train stations, under-

passes or administration buildings, the

steel reinforcements of concrete do not

corrode, meaning that no dangerous frag-

ments come away from the facade. in other

words, polyurethane raw materials from

Bayer are crucial for sustainable construc-

tion materials.

Primer, aliphatic two-component polyu-rethane or two-component poly-urethane, aqueous (‹ 100 µm)

intermediate coating,aliphatic two-component polyu-rethane or two-component poly-urethane, aqueous (‹ 100 µm)

topcoat,aliphatic two-component polyurethane, aqueous orsolventborne 1–2 x 100 µm

W A L L S & F A C A D E S

A CLEAN SOLUTION FOR INDOORS

AND OUTDOORS


2 8

PRODUCTS KEY FIGURES (SUPPLY FORM) TECHNOLOGY

Supply form [%]



OH-content [%] in relation to supply form

NCO-content [%] in relation to supply form

Eq. weight [g/mol]

1K PUR 1K moisture-curing 2K 3K

Polyols

DesmoPHen® 1380 Bt 100 600 11.70 146

DesmoPHen® 5028 Gt 100 3,600 0.86 1,970

DesmoPHen® 1145 100 2,950 7.10 240

DesmoPHen® 1150 100 3,500 4.70 360

DesmoPHen® 1155 100 425 5.00 340

DesmoPHen® 1100 100 30,500 6.50 260

DesmoPHen® 1200 100 23,500 5.00 340

DesmoPHen® c 1100 100 3,200 3.30 500

DesmoPHen® c 1200 100 16,500 1.70 1,000

DesmoPHen® VP ls 2249/1 100 1,900 15.50 110

DesmoPHen® VP ls 2068 100 950 5.40 315

DesmoPHen® VP ls 2328 100 800 7.95 214

DesmoPHen® 650 mPa 65 20,000 5.30 320

DesmoPHen® 651 mPa/X 67 25,000 5.50 310

DesmoPHen® rD 181 X 75 7,500 3.70 460

amines

DesmoPHen® nH 1220 100 max. 100 234

DesmoPHen® nH 1420 100 1,450 276

DesmoPHen® nH 1520 100 1,400 290

DesmocaP ® eP eq. weight

DesmocaP® 11 100 100,000 2.4 bl. 930

DesmocaP® 1190 90 30,000 2.2 bl. 1,030

DesmocaP® 12 100 40,000 1.6 bl. 1,500

bl. = blocked

DesmolitH ®

DesmolitH® XP 2761 70 200 3.00 565

DesmolitH® XP 2656 70 150 3.00 425

DesmolitH® VP ls 2766 90 1,200 16.00 110

tDi HarDeners

DesmoDUr® e 14 100 6,800 3.30 1,270

DesmoDUr® e 15 100 7,000 4.40 950

DesmoDUr® l 67 mPa/X 67 1,600 11.90 350

otHers

HarDener VP ls 2959 100 3,000 330

HarDener Dt 100 200 90

VP and XP products are test products. all data are approximate values. Please see the technical data sheets for the correct specifications.

2 9

PRODUCTS KEY FIGURES (SUPPLY FORM) TECHNOLOGY

Supply form [%]



OH-content [%] in relation to supply form

NCO-content [%] in relation to supply form

Eq. weight [g/mol]

1K PUR 1K moisture-curing 2K 3K

HDis/iPDis

DesmoDUr® nZ 1 * 100 3,000 20.00 210

DesmoDUr® lD 100 75 12.10 347

DesmoDUr® n 3200 100 2,500 23.00 183

DesmoDUr® n 3300 100 3,000 21.80 193

DesmoDUr® n 3400 * 100 150 21.80 193

DesmoDUr® n 3600 100 1,200 23.00 183

DesmoDUr® n 3800 100 6,000 11.00 382

DesmoDUr® n 3900 100 730 23.50 179

DesmoDUr® n 100 100 10,000 22.00 191

DesmoDUr® n 75 mPa 75 250 16.50 255

DesmoDUr® n 75 mPa/X 75 250 16.50 255

DesmoDUr® Z 4470 mPa/X 70 1,500 11.90 360

DesmoDUr® Z 4470 sn 70 2,000 11.90 360

DesmoDUr® VP ls 2371 100 11,000 3.70 1,135

DesmoDUr® XP 2406 80 7,000 2.80 1,500

mDis

DesmoDUr® Vl 100 90 31.50 133

DesmoDUr® Vl r 10 100 120 31.50 133

DesmoDUr® Vl r 20 100 200 31.50 133

DesmoDUr® Vl 50 100 22.5 32.50 129

DesmoDUr® Vl 51 100 21.5 32.50 129

DesmoDUr® VH 20 n 100 280 24.50 173

DesmoDUr® e 20100 100 1,100 15.70 268

DesmoDUr® e 21 100 5,400 16.00 263

DesmoDUr® e 22 100 2,800 8.60 488

DesmoDUr® e 2200/76 100 2,750 9.85 426

DesmoDUr® e 23 100 1,800 15.40 273

DesmoDUr® e 29 100 220 24.00 175

DesmoDUr® XP 2727 100 800 15.25 275

DesmoDUr® XP 2551 100 60 32.00 131

aQUeoUs systems

BayHyDrol® a 2457 41 max. 100 1.10 1,545

BayHyDrol® a 2542 50 2,250 2.70 630

BayHyDrol® a 2546 41 max. 200 1.70 1,000

BayHyDrol® a 2646 50 2,250 2.70 630

BayHyDrol® a 242 42 200 1.70 1,010

BayHyDUr® XP 2547 100 650 22.50 187

BayHyDUr® XP 2451* 100 1,200 18.50 227

BayHyDUr® 3100 100 2,800 17.40 241

* not suitable for spray application

3 0

ABBREVIATIONS IN TABLES

3 1

1K = one-component

2K = two-component

3K = three-component

Ba = Butyl acetate

BG = Butyl glycol

DPGDme = Dipropylene glycol dimethyl ester

ea = ethyl acetate

eDiPa = ethyldiisopropylamine

eP = epoxy resin

HDi = Hexamethylene diisocyanate

mDi = Diphenylmethane diisocyanate (methylene diphenyl diisocyanate)

meK = methylethylketone

mFt = minimum film formation temperature

mPa = 1-methoxypropyl acetate-2

miBK = methyl-isobutyl ketone

nmP = n-methyl pyrrolidone

Pac = Polyacrylate

PnB = Dowanol PnB

PUr = Polyurethane

sn100 = solvent naphtha 100

tDi = toluene diisocyanate

trieta = triethanolamine

tsca = toxic substance control act (U.s. agency for toxic

substances & Disease registry)

Ua = Unsaturated acrylate

UP = Unsaturated polyester

Voc = Volatile organic compounds

X = Xylene

Bayer materialscience aG51368 leverkusen Germany

[email protected]

This information and our technical advice – whether verbal, in writing or by way of trials – is given in good

faith but without a warranty, and this also applies where proprietary rights of third parties are involved. It

does not release you from the obligation to test the products supplied by us as to their suitability for the

intended processes and uses. The application, use and processing of the products are beyond our control

and, therefore, entirely your own responsibility. We will only sell our products on the basis of our General

Conditions of Sale and Delivery. Edition: 2011-01 · Order-No.: MS00051640 · Printed in Germany · E

brochure coating raw materials for building protection 14-06-2011 e

Documents

key figu res

coating raw

polyurethane

supply form

curing 2k

products supply

polyurethane

component