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CONCRETE FORMWORKSUPER COATED PLYWOOD PANELS FOR CONCRETE FORMWORK

FF617 CONCRETE FORMS 7/11/07 10:16 am

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ONE MORE TIME

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STRONG YET LIGHTWEIGHT PLYWOOD PANELS WITH A MULTI-USE, QUICK-RELEASE SURFACE

In construction work, predictability counts. Materials and processes that perform exactly as expected save you time andmoney. So we built predictability into Finnforest plywood shuttering. The results are clean and accurate concretecastings, pour after pour.

With minimal deflection and high resistance to wear, Finnforest concrete formwork panels offer a longer service lifeand a smoother finish. The cost-savings come from the quality of the panel coatings and the lay-up of the panelveneers. It’s a combination that marries strength with repeated ease of use.

In addition to the quality of finish and lifetime cost savings, Finnforest shuttering panels bring you clear environmentalbenefits. Repeated reuse means less waste material and fewer vehicle movements. Most importantly our uniqueFinnish forest farmer ownership, combined with FSC & PEFC Chain of Custody at all UK sites, means every Finnforestpanel meets UK government requirements on legal and sustainable procurement.

Finnforest Form phenolic panels 4-5

SpruceForm MDO formwork panels 6-7

3Plus/III formwork panels 8

Bespoke formwork 8

Care and maintenance 9

Technical specifications 10-15

CONTENTS


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Finnforest Form is ideal for bespoke formwork.

Source: Peri


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SUPERIOR BIRCH FORMWORK PANEL WITH DOUBLE-SIDED PHENOLICOVERLAY FOR REPEATED SMOOTH CASTING

Strength and simplicity characterise Finnforest Form. These double-sided, superior shuttering panels are overlaidwith a smooth, hard, and slippery phenolic film for easy concrete casting and trouble-free release. The base filmweight is 120g/m2, although heavier weights (220 g/m2, 440 g/m2) and multiple overlays are available to order.

Abrasion resistance in the phenolic films is exceptional, while moisture absorption through the film overlays andsealed panel edges is minimal.

The useful life of Finnforest Form is effectively doubled through the application of phenolic films to both panelfaces. By following a basic maintenance routine, Finnforest Form continues to deliver smooth casts throughnumerous pours.

For extreme longevity (30–100 pours) choose Form 500 or Form 700.

For technical properties see pages 10 -11.

FINNFOREST FORM

The thin veneer birch construction providestremendous strength and versatility for themost demanding projects.

Peri

Source: Peri

0809-CPD-0259


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Finnforest formwork panels are used in the most demanding jobs.

Source: Peri


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STRONG YET LIGHTWEIGHT SPRUCE FORMWORK PANEL WITH MDO COATINGFOR LONG LIFE AND EASY RELEASE

Concrete constructions go up faster and more cost-effectively with SpruceForm MDO. These high qualityconcrete formwork panels combine stiffness and ease of use with smoothness of finish and unsurpassedlongevity. For complex pours and tight construction schedules, SpruceForm MDO provides strong, rapid, andtrouble-free shuttering.

SpruceForm MDO panels are double-sided for longer life and multiple reuse. One side is faced with Dynea 333,a durable and scratch-resistant MDO (medium density overlay) paper that produces the smoothest concretefinish. The reverse is protected by a moisture-resistant 145g/m2 phenolic film that ensures the panel stays flat. Panel edges are sealed with a moisture-resistant acrylic paint.

At the heart of 18mm SpruceForm MDO (the most popular gauge) lies a shear-resistant six-layer constructionthat produces a lightweight panel with maximum strength in the longitudinal direction of the panel – and minimaldeflection across the formwork span. Increased shear resistance and stiffness comes from a central doublelayer of longitudinal veneers that overcomes the weakness of alternate longitudinal and lateral arrangements. Strength is further enhanced by bonding veneers with exterior-grade phenolic resin, while their low densityfacilitates nailing.

For technical properties and accreditation information see pages 12-13.

SPRUCEFORM MDO

SpruceForm MDO panels aredouble-sided for longer life andmultiple re-use.

Source: Peri

0809-CPD-0259


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COST-EFFECTIVE GOOD 1 SIDE SPRUCE PLYWOOD PANEL FOR CONCRETESHUTTERING

The strength and rigidity of Finnforest 3Plus/III comes from the Nordic spruce veneers from which it isconstructed. 3Plus/III is a good all-round formwork panel where short-term cost-effectiveness is a priority.

For technical properties see pages 14-15.

3PLUS/III

BESPOKE FORMWORKSPECIALIST TASKS OFTEN CALL FOR SPECIALIST MATERIALS

Please contact us if your construction project requires bespoke formwork panels. Bespoke panels canincorporate more long-grained veneers, combinations of birch and spruce, non-standard panel sizes, and specialthicknesses of panel and/or overlay.

3Plus/III - a good all round formwork panel.

Finnforest is always keen to look at solving specialist customerrequirements such as shuttering components with factory fitteddrillings and fixings.

0809-CPD-0259


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CARE AND MAINTENANCETHE BETTER YOU CARE FOR YOUR PANELS, THE LONGER THEY LAST

Store formwork panels on flat, level, dry ground and protected with a waterproof covering. If conditions arehumid, remove strapping to prevent expansion damage.

Finnforest plywood formwork panels can be cut and shaped using standard woodworking tools. Seal theresultant raw edges with water-resistant paint.

Oil panels twice before the first use and then treat with a quality chemical release agent to ensure easy release.

Clean panels after each use to remove all concrete debris. Seal scratches with waterproof paint and fill holeswith water-repellent filler. Afterwards, apply a fresh coat of oil and then another coat of release agent prior toeach subsequent use.

Hi-tech production methods andquality control ensure a constantand reliable finish every time.


= long-grained | = cross-grained t = thickness A = Area W = section modulus I = second moment of area || = parallel to the face grain ± = perpendicular to the face grain fm = bending strength fc = compression strength ft = tension strength Em = modulus of elasticity in bending panel Ec = modulus of elasticity in compression Et = modulus of elasticity in tension

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TECHNICAL PROPERTIES

General characteristics Outer faces 120 g/m2 dark brown phenolic film as standard (other weights available)

Edge sealing dark brown acrylic paint

Popular gauges 12mm (9-ply); 15mm (11-ply); 18mm (13-ply); 21mm (15-ply)

Veneer material high quality Finnish birch from renewable forests

Veneer bonding phenolic resin resistant to weather and boiling water (to SFS-EN 314-2/Class 3 and to EN 636-3)

Typical number of uses 20-100 (dependant on overlay weight, handling, maintenance, usage, and site conditions)

NOMOGRAM FOR LONG-TERM LOADING

*Number of uses is based on extensive testing and experience. No warranty or guarantee is implied.

Strength and elastic properties according to EN 789 and EN 1058 standardsCharacteristic strength Mean modulus of elasticity

Arrangement of birch veneers Section properties Bending Compression Tension Bending Tension and compression

Nominal Number t mean A W I fm || fm ± fc || fc ± ft || ft ± Em || Em ± Et/c || Et/c ±thickness of plies (mm) mm2/mm mm2/mm mm2/mm N/mm2 N/mm2 N/mm2 N/mm2 N/mm2 N/mm2 N/mm2 N/mm2 N/mm2 N/mm2

(mm)

—| |— 12 9 12.0 12.0 24.0 144 42.9 33.2 27.7 24.3 40.0 35.0 10719 6781 9333 8167

|—|—|—|—|—| 15 11 14.8 14.8 36.5 270 41.3 33.8 27.4 24.6 39.5 35.5 10316 7184 9223 8277

|—|—|—|—…|—|... 18 13 17.6 17.6 51.6 454 40.2 34.1 27.2 24.8 39.2 35.8 10048 7452 9148 8352

|—|—|—|—…|—| 21 15 20.4 20.4 69.4 707 39.4 34.3 27.0 25.0 39.0 36.0 9858 7642 9093 8407

Span L (c/c) cm Concrete pressure q kN/m2

FINNFOREST FORM

This graph should only be used as a guide. For more detailed information use the tables.


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Long-term loading in concrete shutteringConstruction span 12mm (9-ply) 15mm (11-ply) 18mm (13-ply) 21mm (15-ply)

Pressure Deflection Pressure Deflection Pressure Deflection Pressure Deflection(kN/m2) (mm) (kN/m2) (mm) (kN/m2) (mm) (kN/m2) (mm)

Load resistance for a uniformly distributed load on a continuous plate strip with three equal span lengths. Face grain parallel to span.

200 49 t 0.9 60 t 0.5 72 t 0.5 83 t 0.4

250 39 t 1.1 48 t 0.9 57 t 0.7 67 t 0.6

300 28 d 1.5 40 t 1.3 48 t 1.1 55 t 0.9

350 19 d 1.8 30 s 1.6 41 t 1.5 48 t 1.3

400 13 d 2.0 22 d 2.0 32 s 1.9 42 t 1.7

450 10 d 2.3 16 d 2.2 25 d 2.2 34 s 2.0

500 7 d 2.5 12 d 2.5 19 d 2.5 27 s 2.4

600 4 d 3.0 8 d 3.0 12 d 3.0 17 d 3.0

Load resistance for a uniformly distributed load on a continuous plate strip with three equal span lengths. Face grain perpendicular to span.

200 66 t 1.3 88 t 1.0 103 t 0.8 123 t 0.5

250 53 t 2.4 71 t 1.7 82 t 1.3 98 t 1.0

300 40 s 3.6 59 t 2.8 68 t 2.0 82 t 1.6

350 29 s 4.7 45 s 3.8 59 t 3.0 70 t 2.4

400 22 s 6.1 35 s 4.9 49 s 4.2 61 t 3.4

500 14 s 9.2 22 s 7.4 32 s 6.2 43 s 5.4

600 10 s 13.1 15 s 10.4 22 s 8.7 30 s 7.5

d = deflection limitation s= span/200 t= rolling shearThese tables show permissible concrete pressures for sanded and overlaid plywood at a moisture content of MC = 27%.

Nominal thicknesses, shear, strengths and rigiditiesNominal thickness Characteristic strength (N/mm2) Mean modulus of rigidity (N/mm2)

Panel shear strength Planar shear strength in panel shear in planar shear

(mm) parallel perpendicular parallel perpendicular parallel perpendicular parallel perpendicularto face grain to face grain to face grain to face grain to face grain to face grain to face grain to face grain

12 9.5 9.5 2.78 2.22 620 620 207 170

15 9.5 9.5 2.62 2.39 620 620 207 178

18 9.5 9.5 2.67 2.34 620 620 206 183

21 9.5 9.5 2.59 2.41 620 620 206 186

Physical size, tolerances and packing quantitiesNominal thickness (mm) No of plies Thickness tolerances (mm) Panel sizes (mm x mm) Packing quantities

12 9 11.2 — 12.5 1220 x 2440 75

15 11 14.3 — 15.3 1220 x 2440 60

18 13 17.1 — 18.1 1220 x 2440 50

21 15 20.0 — 20.9 1220 x 2440 45

Squareness of panels: ± 0.1% Straightness of panel edges: ± 0.1% Length: ± 3mm Width: ± 2mm Panel weights are based on a density of 700 kg/m3


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FINNFOREST SPRUCEFORM MDOTECHNICAL PROPERTIES

General characteristicsMain face Dynea 333 MDO paper

Reverse face 145 g/m2 light brown phenolic film

Edge sealing orange acrylic paint


Veneer material high quality Nordic spruce from renewable forests


Typical number of uses 10-20* (dependant on handling, maintenance, usage, and site conditions)

NOMOGRAM FOR SHORT-TERM LOADING


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Arrangement of spruce veneers Section properties Bending Compression Tension Bending Tension and compression


(mm)

—| |— 12 4 11.4 11.4 21.7 123 25.6 8.3 14.2 15.8 8.5 9.5 10250 1750 5684 6316

—|—|— 15 5 14.4 14.4 34.6 249 22.9 11.3 17.5 12.5 10.5 7.5 9179 2821 7000 5000

—|— —|— 18 6 17.4 17.4 50.5 439 21.4 12.5 19.7 10.3 11.8 6.2 8556 3444 7862 4138

—|—|—|— 21 7 20.4 20.4 69.4 707 20.6 12.8 16.8 13.2 10.1 7.9 8222 3778 6706 5294



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Short-term loading in concrete shutteringConstruction span 12mm (4-ply) 15mm (5-ply) 18mm (6-ply) 21mm (7-ply)


Permissible concrete pressures and deflections when laid with face grain PARALLEL to span

200 36 d 1.0 69 t 1.0 83 t 0.7 97 t 0.8

250 24 d 1.3 44 d 1.3 66 t 1.0 78 t 1.1

300 17 d 1.5 31 d 1.5 50 s 1.3 58 d 1.5

350 12 d 1.8 23 d 1.8 37 s 1.6 44 d 1.8

400 9 d 2.0 17 d 2.0 28 s 1.9 34 d 2.0

450 7 d 2.3 13 d 2.3 22 s 2.2 26 d 2.3

500 5 d 2.5 10 d 2.5 16 d 2.5 21 d 2.5

600 3 d 3.0 6 d 3.0 10 d 3.0 14 d 3.0

Permissible concrete pressures and deflections when laid with face grain PERPENDICULAR to span

200 17 s 0.8 29 d 1.0 40 d 1.0 70 d 1.0

250 10 d 1.2 19 d 1.3 27 d 1.3 48 d 1.3

300 6 d 1.5 12 d 1.5 20 d 1.5 34 d 1.5

350 4 d 1.8 9 d 1.8 14 s 1.8 25 d 1.8

400 2 d 2.0 6 d 2.0 11 d 2.0 19 d 2.0

450 2 d 2.3 5 d 2.3 8 d 2.3 14 d 2.2

500 1 d 2.5 3 d 2.5 6 d 2.5 11 d 2.5

600 1 d 3.0 2 d 3.0 4 d 3.0 7 d 3.0

d = deflection limitation s= span/200 t= rolling shearThese tables show permissible concrete pressures for sanded and overlaid plywood at a moisture content of MC = 27%.Permissible stresses are raised from long-term values (BS 5268 Part 2) by a factor of 1.50 for short-term loading. The safety factor that has been used is 1.55.



Type parallel perpendicular parallel perpendicular parallel perpendicular parallel perpendicularto face grain to face grain to face grain to face grain to face grain to face grain to face grain to face grain

12/4-3.0 3.5 3.5 0.95 — 350 350 35 —

15/5-3.0 3.5 3.5 1.13 0.61 350 350 50 29

18/6-3.0 3.5 3.5 1.22 0.64 350 350 71 25

21/7-3.0 3.5 3.5 0.98 0.82 350 350 52 38

Physical size, tolerances and packing quantitiesNominal thickness (mm) No of plies Thickness tolerances (mm) Panel sizes (mm x mm) Packing quantities

12 4 11.2 — 12.6 2440 x 1220; 2500 x 1250 85

15 5 14.2 — 15.7 2440 x 1220; 2500 x 1250 65

18 6 17.1 — 18.7 2440 x 1220; 2500 x 1250 55

21 7 20.0 — 21.8 2440 x 1220; 2500 x 1250 45



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TECHNICAL PROPERTIES

General characteristicsMain face Repaired and sanded

Reverse face Standard grade III


Veneer material high quality Nordic spruce from renewable forests


Typical number of uses 2-5* (dependant on handling, maintenance, usage, and site conditions)

NOMOGRAM FOR SHORT-TERM LOADING


FINNFOREST 3PLUS/III





Arrangement of spruce veneers Section properties Bending Compression Tension Bending Tension and compression


(mm)

—| |— 12 4 11.4 11.4 21.7 123 25.6 8.3 14.2 15.8 8.5 9.5 10250 1750 5684 6316

—|—|— 15 5 14.4 14.4 34.6 249 22.9 11.3 17.5 12.5 10.5 7.5 9179 2821 7000 5000

—|— —|— 18 6 17.4 17.4 50.5 439 21.4 12.5 19.7 10.3 11.8 6.2 8556 3444 7862 4138

—|—|—|— 21 7 20.4 20.4 69.4 707 20.6 12.8 16.8 13.2 10.1 7.9 8222 3778 6706 5294


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Short-term loading in concrete shutteringConstruction span 12mm (4-ply) 15mm (5-ply) 18mm (6-ply) 21mm (7-ply)


Permissible concrete pressures and deflections when laid with face grain PARALLEL to span

200 36 d 1.0 69 t 1.0 83 t 0.7 97 t 0.8

250 24 d 1.3 44 d 1.3 66 t 1.0 78 t 1.1

300 17 d 1.5 31 d 1.5 50 s 1.3 58 d 1.5

350 12 d 1.8 23 d 1.8 37 s 1.6 44 d 1.8

400 9 d 2.0 17 d 2.0 28 s 1.9 34 d 2.0

450 7 d 2.3 13 d 2.3 22 s 2.2 26 d 2.3

500 5 d 2.5 10 d 2.5 16 d 2.5 21 d 2.5

600 3 d 3.0 6 d 3.0 10 d 3.0 14 d 3.0

Permissible concrete pressures and deflections when laid with face grain PERPENDICULAR to span

200 17 s 0.8 29 d 1.0 40 d 1.0 70 d 1.0

250 10 d 1.2 19 d 1.3 27 d 1.3 48 d 1.3

300 6 d 1.5 12 d 1.5 20 d 1.5 34 d 1.5

350 4 d 1.8 9 d 1.8 14 s 1.8 25 d 1.8

400 2 d 2.0 6 d 2.0 11 d 2.0 19 d 2.0

450 2 d 2.3 5 d 2.3 8 d 2.3 14 d 2.2

500 1 d 2.5 3 d 2.5 6 d 2.5 11 d 2.5

600 1 d 3.0 2 d 3.0 4 d 3.0 7 d 3.0

d = deflection limitation s= span/200 t= rolling shearThese tables show permissible concrete pressures for sanded and overlaid plywood at a moisture content of MC = 27%.Permissible stresses are raised from long-term values (BS 5268 Part 2) by a factor of 1.50 for short-term loading. The safety factor that has been used is 1.55.



Type parallel perpendicular parallel perpendicular parallel perpendicular parallel perpendicularto face grain to face grain to face grain to face grain to face grain to face grain to face grain to face grain

12/4-3.0 3.5 3.5 0.95 — 350 350 35 —

15/5-3.0 3.5 3.5 1.13 0.61 350 350 50 29

18/6-3.0 3.5 3.5 1.22 0.64 350 350 71 25

21/7-3.0 3.5 3.5 0.98 0.82 350 350 52 38

Physical size and packing quantitiesNominal thickness (mm) No of plies Thickness tolerances (mm) Panel sizes (mm x mm) Packing quantities

12 4 11.2 — 12.6 2440 x 1220; 2500 x 1250 85

15 5 14.2 — 15.7 2440 x 1220; 2500 x 1250 65

18 6 17.1 — 18.7 2440 x 1220; 2500 x 1250 55

21 7 20.0 — 21.8 2440 x 2440; 2500 x 1250 45



For more information and a list of stockists in your area visit www.finnforest.co.uk or call 0151 422 5200.

Wood is the only building material that is truly renewable, if well managed. Forest certification schemes give assurancethat the timber is legal and from sustainable sources. Finnforest UK sources certified timber over uncertifiedand is an approved Chain of Custody supplier.

FF617 March 2004.

The photographs in this brochure are for illustration purposes only.Finnforest reserves the right to change the range without notice.

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