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COATINGS BASED ON GP® CK-2400 PHENOLIC RESIN
© 2018 Georgia-Pacific Chemicals LLC, All rights reserved. 1
GP® CK-2400 Phenolic Resin
Table of Contents
Page Formula Starting Point
3 GP® CK-2400 Phenolic Resin
4 Cold-Blending Vehicles
18 Cooking Vehicles
27 Appendix
2
The formulas and information in this book are provided as starting points and directional guidance for development of a customer’s individual formulations.
GP® CK-2400 phenolic resin is a non-heat reactive, oil-soluble resin used to make high-performance varnishes and oi-based vehicles for paints. Both air-drying and baking coatings have given excellent performance in a wide variety of applications.
GP CK-2400 resin is compatible with all the common drying oils, such as tung, linseed, castor and oiticica oils. Varnishes of any oil length may be prepared by the cold-blend or cooking processes. GP CK-2400 is also compatible with many oil-containing alkyd resins and is used at a 5-25% of alkyd solids to improve the water resistance, hardness, gloss and leveling of such systems.
GP CK-2400 phenolic resin is soluble in aromatic hydrocarbons, alcohols, glycol ethers, ketones, and esters. However, the oil-containing varnish vehicles based on GP CK-2400 may be thinned with aromatic mineral sprits or blends of Rule 66/3-type mineral spirits containing at least 10% active solvent such as an alcohol or glycol ether.
Varnishes based on GP® CK-2400 phenolic resin feature fast drying speed, light colors, water and corrosion resistance, and good durability. Clear exterior wood varnishes based on combinations of GP CK-2400 and copolymer 186-85%*, a drying oil developed for cold-blend systems, have shown outstanding wood protection and exterior durability compared to many other available wood finishes.
Applications for GP CK-2400 Resins:
Floor coatings Floor enamels Spar varnishes Porch and deck enamels Metal primers and zinc-rich primers Ready-mixed aluminum maintenance paints Alkyd modifiers for improved water and alkali resistance and for faster drying
Oleoresinous can coatings Printing inks Government specification vehicles
*Supplier: Vertellus
GP® CK-2400 Phenolic Resin
3
Cold-Blending Vehicles
Cold-blending GP® CK-2400 phenolic resin is an economical and convenient way to make high-quality paints and varnishes. It involves simply the mixing of a phenolic resin and a drying oil at room temperature. The resulting type of vehicle offer a number of advantages over cooking:
EconomyNo varnish cooking equipment needed. No heat needed for reaction. Three to ten percent volatile loss eliminated. No pollution from solvents and fumes.
Improved QualityLighter-colored products produced. No darkening from cooking. Greater consistency in quality. No variables introduced by cooking. Properly formulated blends are at least equal to cooked varnishes in dry time, toughness, durability and resistance to water and chemicals
ConvenienceGP CK-2400 phenolic resin is versatile and convenient to use. With GP CK-2400 resin a coatings manufacturer can easily expand its product line with high-quality varnishes or fortified alkyds.
Cold-blended vehicles can, therefore, replace cooked vehicles in many applications. There are limitations. For example, varnishes with low solids at high viscosities cannot be made by this process. Also, the maximum length tung oil varnish that can be made gasproof is about 19 gallons.
Varnishes and enamels prepared by the cold-blend technique typically dry faster and show a higher gloss than comparable finishes made in the conventional way. In every other respect, including exterior durability, performance is at least equal.
4
Cold-Blending Vehicles
Any varnish oil can be used in cold-blend preparations, however, unbodied oils are used when high solids or low viscosities are desired. Using a 40% solution of GP® CK-2400 resin in a mineral spirits/isopropanol mixture (9/1) as a starting point, a great variety of varnishes can be produced by simply mixing in the necessary oils and solvents.
5
Ready-Mixed Aluminum Paints
Ready-mixed aluminum paints based on GP® phenolic resins offer the paint consumer one of the most durable single-coat finishes for metal available in the modern coatings market:
• They adhere to and protect cleaned metal surfaces, providing unusual performance in a single-coat decorative finish applied by brush and thinned by mineral spirits.
• Aluminum pigments show better leafing retention of the aluminum particles in phenolic varnishes than in most other vehicles that offer comparable durability in the finished paint system.
• The inherent adhesion characteristics of phenolic resin varnishes make them the ideal vehicle choice for ready-mixed aluminum paints where convenience and/or economy limit the coating operation to one application. Where a good quality primer system can be used, additional service life will be obtained in proportion to the film thickness and quality of he primer applied.
• Aluminum paints based on phenolic varnishes are easy to recoat. The aluminum paint makes a good base for subsequent repainting with a minimum of surface preparation.
• Ready-mixed paints based on phenolic varnishes prepared by cold blending compare favorably in exterior durability and in leafing retention with comparable cooked varnish. The method of vehicle preparation is, therefore, optional. An equally durable base is available to those manufacturers who do not have varnish cooking equipment. A simple efficient high-speed agitator would be the only equipment required to produce these durable finishes.
6
Performance of Aluminum Paints
Aluminum
Paint*
NumberVehicle
Exposure Results
42 Months New JerseyLeafing Retention
Rusting BlisteringAged 2 Mos
Aged 16 Mos
Aged 45 Mos
Aged 10 Yrs
6
GP® CK-2400 resin, tung oil/bodied linseed oil (75/25) 25 gallons. Cold-blend procedure.
None None ExcellentVery good
Very good
Very good
8
GP CK-2103 resin, cooked with tung oil. 25 gallons.
None None ExcellentVery good
Very good
Very good
10Epoxy resin ester
Severe over 50% panel area
None Poor Poor None None
12
Commercial alkyd (medium-length soya phthalic)
Moderate at sides of panel
Moderate at sides of panel
Very poor
None None None
13Petroleum hydrocarbon resin varnish
Severe over entire panel
Severe over entire panel
Very poor
None None None
15Terpene resin varnish
Very slight rusting near edges.
None Poor Fair FairFair to Poor
16
Rosin-pentaerythritol ester resin varnish
Panel removed after 36 months: entire panel
severely rustedFair Fair Fair Fair
*Finished paints were prepared with two pounds of standard
grade aluminum paste per gallon of vehicle and reduced
to Gardner-Holdt viscosity B.7
Formula Starting Points for Cold-Blend Vehicles
PageFormula Starting Point
Title Drying OilOil Length,Gallons
9 VF-1922 Resin Solution None --
10 EF-2109Cold-blend Gray
EnamelTung/Linseed 27
11 PC-2486Cold-blend Spar
Varnish for High Solids and Wrinkle Resistance
Tung/Linseed 25
12 PC-3647Cold-blend Spar
VarnishTung/Linseed 30
14 PC-3466 Cold-blend VarnishCopolymer 186-85%*
25
15 PC-3470Cold-blend Aluminum
Paint VehicleTung/Linseed 25
16 PP-3471Ready-mixed Aluminum Paint
Tung/Linseed 25
17 PP-3472Cold-blend Maroon
Floor PaintTung/Linseed 17
*Supplier: Vertellus
8
Formula Starting Point VF-1922
Resin Solution
Ingredients Pounds Gallons
GP® CK-2400 Phenolic Resin 100 11.0
Mineral Spirits 135 20.8
Isopropanol, 99% 15 2.3
Total 250 34.1
Procedure:Dissolve the resin in the solvent by heating in a steam-jacketed kettle or “Cowles” dissolver (closed) to 175°F (79°C).
Properties: Specific Gravity 0.890 (7.41 lb/gal)
Non-volatiles 40% by wt
Viscosity, Gardner-Holdt G-L
Color, Gardner 1933 6-12*
*Color will depend on the method of solution
preparation, heating darkens the resin solution. 9
Formula Starting Point EF-2109
Cold-Blend Gray Enamel Ingredients Pounds Gallons
Titanium Dioxide, Rutile 340.65 9.74
Zinc Oxide 60.14 2.68
Lampblack 2.83 0.19
GP® CK-2400 Phenolic Resin 160.11 17.72
Tung Oil 150.52 19.20
Linseed Oil* 64.07 7.91
Isopropanol 23.96 3.68
Mineral Spirits 257.78 39.60
Driers 4.31 0.48
Anti-Skinning Agent 1.48 0.19
Total 1065.85 100.00
*Bodied linseed oil with a viscosity of Z-7.
Procedure:Grind all the ingredients, including the lump resin, until a good dispersion is obtained.
Composition: Pigment, 37.87% by wt Vehicle, 62.13% by wt
Titanium Dioxide 84.40% GP CK-2400 24.18%
Zinc Oxide 14.90 Tung Oil 22.73
Lampblack 0.70 Linseed Oil 9.67
Parts by weight 100.00% Isopropanol 3.62
Mineral Spirits 38.93
Driers & Anti-Skinning Agent 0.87
Parts by weight 100.0%
Properties: Tung/Linseed 70/30% by wt
Oil Length 27 gal
Specific Gravity 1.281 (10.66 lb/gal)
Non-volatiles 73.41% by wt
Viscosity, Stormer 72 KU
Pigment Volume Concentration 20%
Performance: Add 0.345% driers, calculated as metal and based on the weight of oils present.
Reducing Thinner Mineral spirits
Gloss 100+ on 60° glossmeter
10
Formula Starting Point PC-2486
Cold-Blend Spar Varnish
for High Solids and Wrinkle Resistance
Ingredients Pounds Gallons
GP® CK-2400 Phenolic Resin 100 11.0
Tung Oil, Raw 147 18.75
Linseed Oil, Alkali-Refined 50 6.25
Mineral Spirits 146 22.30
Isopropanol 15 2.3
Total 458 60.6
Procedure:
Prepare a 40% NV solution by dissolving 100 lb GP CK-2400 in 135 lb mineral spirits and 15 lb isopropanol. Add the raw tung oil to the resin solution slowly with stirring. When the resin is dispersed in an equal weight of oil, add the remaining ingredients rapidly.
Properties: Tung/Linseed 75/25%
Oil Length 25 gal
Specific Gravity 0.916 (7.62 lb/gal)
Non-volatiles 65% by wt
Viscosity, Gardner-Holdt D
Color, Gardner, 1933 8 to 9
Performance:Add 0.06% zirconium, 0.03% cobalt, and 0.02% calcium, calculated as metal and based on the weight of oils present.
Drying:
2 hours Slight tack
4 hours Faint tack
6 hours Dry, print free
Resistance to 5% NaOH at 77°F (25°C):
8 hours OK
24 hours Softened
11
Formula Starting Point EF-3647
Cold-Blend Spar Varnish Ingredients Pounds Gallons
GP® CK-2400 Phenolic Resin Solution (50% NV)
Solvents: 85% mineral spirits
15% isopropanol
200.00 25.91
Tung Oil, Raw 158.10 20.22
Linseed Oil, Bodied1 79.00 9.78
Mineral Spirits2 154.30 24.11
Driers3 4.74 0.53
Anti-Skinning Agent4 0.93 0.12
Total 597.07 80.67
Footnotes(1) Low acid number and viscosity of Z-8.(2) Rule 66-type exempt(3) Consider 0.06% zirconium, 0.03% cobalt, and 0.02% calcium, calculated as metal and based on the weight of oil present.(4) Such as methyl ethyl ketoxime
Procedure:
Add oils and one half of mineral spirits to mixer. Mix until uniform. Add GP CK-2400 resin
solution and mix until uniform. Let down with rest of mineral spirits and add driers and anti-
skinning agent.
Properties: Tung/Linseed 66.7/33.3%
Oil Length 30 gal
Specific Gravity 0.879 (7.31 lb/gal)
Non-volatiles 57% by wt
Viscosity, Gardner-Holdt E
Color, Gardner 1933 11
Performance: Drying:
1 hour Tacky, set to touch
2 hours Slight tack
3 hours Dry
Resistance to 5% NaOH at 68°F (20°C):
8 hours Very faint surface haze
24 hours No haze, OK
48 hours Failed, hazy with some spotting
Boiling Water Resistance:
10 hours OK
Skinning, ½-full 8-oz jar:
48 hours OK
Gas Checking, Gas Oven None
Rosin-Pentaerythritol Ester Reduction:
130% Pass
140% Fail 12
GP® CK-2400/Copolymer 186-85%Combinations of GP® CK-2400 Phenolic Resin and Copolymer 186-85%* have yielded a
variety of useful finishes. Copolymer 186-85%, a drying oil polymer derived from castor
oil, was specifically designed for cold-blend varnish vehicles. The potential application
depends on the proportion of GP CK-2400 resin to Copolymer 186-85%.
GP CK-2400/Copolymer 186-85% Application
35/65 Exterior or very flexible finishes.
40/60 Maintenance paints.
45/55 Floor finishes, traffic paints.
>45/<55 Baked can or drum linings.
The table below shows exposure data for combinations of GP CK-2400/Copolymer 186-
85% in wood varnishes that exhibited outstanding, unblemished weather resistance
after four years exposure 45° South, New Jersey.
GP CK-2400/
Copolymer 186 -85%*
Exposure Data**System Proportion, Solids Rating
GP CK-2400/Copolymer 186-85%
100/200 Unblemished
GP CK-2400/Copolymer 186-85%
100/264Unblemished
GP CK-2400/Copolymer 186-85%
100/306Unblemished
GP CK-2400/Copolymer 186-85% (+4% UV Absorber)
100/200 Trace Dulling
GP CK-2400/Copolymer 186-85% (+4% UV Absorber)
100/264 Trace Dulling
** Four years, 45° South,
New Jersey, Maple panels.13
*Supplier: Vertellus
Formula Starting Point PC-3466
Cold-Blend Varnish
Ingredients Pounds Gallons
GP® CK-2400 Phenolic Resin Solution (50% NV) Solvents: 85% mineral spirits
15% isopropanol200.00 26.0
Copolymer 186-85%* 237.6 30.4
Mineral Spirits 101.4 15.6
Total 539.0 72.0
Procedure:Mix GP CK-2400 resin solution with Copolymer 186-85% until uniform. Thin with mineral spirits.
Properties: Oil Length 25 gal
Specific Gravity 0.892 (7.42 lb/gal)
Non-volatiles 55.6% by wt
Viscosity, Gardner-Holdt I-J
Color, Gardner, 1933 4
Performance:Add 0.1% calcium/0.03% cobalt or 0.1% zirconium/0.03% cobalt, calculated as metal and based on the weight of oil present. Thin with mineral spirits to D-E viscosity.
Drying:
1½ hours Tacky, set to touch
20 hours Dry
Chemical Properties (72-hour air dry):
Resistance to 5% NaOH at 73°F (23°C):
2 hours Passed
8 hours Failed
Water Immersion at 73°F (23°C) on Tin Plate:
8 hours Blush
*Supplier: Vertellus.
14
Formula Starting Point PC-3470
Cold-Blend Aluminum Paint Vehicle
Ingredients Pounds Gallons
GP® CK-2400 Phenolic Resin Solution (50% NV) Solvents: 85% mineral spirits
15% isopropanol200.0 26.0
Tung Oil 147.0 18.8
Linseed Oil, Alkali-Refined 48.5 6.2
Mineral Spirits 137.0 21.1
Total 532.5 72.1
Procedure: Mix GP CK-2400 resin solution with oils until uniform. Thin with mineral spirits.
Properties: Tung/Linseed 75/25%
Oil Length 25 gal
Specific Gravity 0.888 (7.39 lb/gal)
Non-volatiles 55.5% by wt
Viscosity, Gardner-Holdt A-
Color, Gardner, 1933 4
Performance: Add 0.345% driers, calculated as metal and based on the weight of oil present.
Drying:
1 hour Tacky, set to touch
2 hours Very slightly tacky
4 hours Dry
Chemical Properties (72-hour air dry):
Resistance to 5% NaOH at 73°F (23°C):
8 hours Passed
24 hours Failed
Water Immersion at 73°F (23°C) on Tin Plate:
72 hours No effect
3 weeks Slight blush
15
Formula Starting Point PP-3471
Ready-Mixed Aluminum Paint
Ingredients Pounds Gallons
Aluminum Paste (65.5% NV) 200.8 16.26
Formula Starting Point PC-3470 (55.5% NV) 618.8 83.49
Cobalt Drier, 6% 1.9 0.25
Total 821.5 100.0
Properties: Specific Gravity 0.985 (8.20 lb/gal)
Non-volatiles 58.2% by wt
Performance: Add 0.5% cobalt, calculated as metal and based on the weight of oil present.
Reducing Thinner Mineral spirits
Application Brush or spray
Drying Time 6 hours
16
Formula Starting Point PP-3472
Cold-Blend Maroon Floor Paint Ingredients Pounds Gallons
Iron Oxide, Synthetic Red 434.7 10.65
Zinc Oxide 23.0 0.32
Aluminum Stearate 2.4 0.27
GP® CK-2400 Phenolic Resin Solution (50% NV)
Solvents: 85% mineral spirits
15% isopropanol
321.0 42.20
Tung Oil, Raw 150.9 19.28
Linseed Oil* 64.2 8.03
Mineral Spirits 122.0 18.84
Driers 3.81 0.41
Total 1122.0 100.00
*Bodied linseed oil with a viscosity of Z-7.
Procedure:
Grind the pigments in the tung oil, bodied linseed oil, and 42 lb of mineral spirits. Blend into
this paste 321 lb of GP CK-2400 resin solution and the remaining 80 lb of mineral spirits.
Then, work in the driers.
Composition: Pigment, 41% by wt Vehicle, 59% by wt
Iron Oxide, Red 94.5% GP CK 2400 Resin Solution (50% NV) 48.4%
Zinc Oxide 5.0 Tung Oil, Raw 22.8
Aluminum Stearate 0.5 Linseed Oil, Z-7 9.7
Parts by weight 100.00% Mineral Spirits 18.5
Driers 0.6
Parts by weight 100.0%
Properties: Tung/Linseed 70/30% by wt
Oil Length 17 gal
Specific Gravity 1.228 (11.22 lb/gal)
Non-volatiles 74.5% by wt
Viscosity, Stormer 73 KU (150 gr wt at 77°F(25°C)
Pigment Volume Concentration 20%
Performance: Add 0.33% driers, calculated as metal and based on the weight of oil present.
Reducing Thinner Mineral spirits
Gloss 100 on 60° glossmeter
Drying:
1 hour Set to touch
6 hours Dry
17
Cooking Vehicles
GP® CK-2400 phenolic resin has excellent solubility in all the common drying oils at 450°F (232°C). It does not require high temperature processing to obtain maximum resin-oil solubility and stability. A dispersion-type cook is not necessary. In addition to providing fast cooking schedules, varnishes made of GP CK-2400 have the advantage of being completely soluble in mineral spirits in all oil lengths.
GP CK-2400 resin like other 100% phenolic resins, markedly reduces the set-to-touch time of the varnishes produced by continued heat processing of the resin with slow-bodying oils.
The effect is less noticeable with hard oil varnishes because of the extremely fast dry obtained with their normal short processing period. With all oils, especially in varnishes of less than 25-gallon oil length, continued heat-bodying improves caustic resistance. However, when heat bodying is carried beyond practical limits, these beneficial effects may be offset by skinning, beading, and viscosity increase upon storage. Tung oil varnishes are especially prone to these tendencies.
Twenty-five gallon tung oil varnishes, formulated from GP CK-2400 and low-cost resins of the pentaerythritol rosin ester type, dry quickly and have good water resistance. Straight tung oil varnishes of this type, containing 30 to 40 percent GP CK-2400 in the resin portion can be gasproofed quickly and easily at a temperature of 485°F (252°C). However, varnishes containing 20 percent or less GP CK-2400 in the resin component require an oil content of at least one-third linseed or another soft oil, and they also require heat treatment to at least 560°F (293°C) to obtain complete gasproofness.
Drying speed improves significantly with increased GP CK-2400 resin content. A 35-gallon tung-soft oil formulation containing 20 percent GP CK-2400 resin in the resin portion dries print-free in 24 hours, while a corresponding varnish containing 40 percent GP CK-2400 resin will dy print-free in five hours.
18
Cooking Vehicles
Caustic resistance and resistance to cold and boiling water are improved materially by increasing the phenolic content. A straight 20-gallon tung oil varnish, containing 40 percent GP® CK-2400 phenolic resin in the resin portion, is unaffected after a 24-hour immersion in five percent NaOH. Films show no whitening after 24 hours in cold water or one hour in boiling water. As the percentage of GP CK-2400 resin increases, the color of the varnish films darkens. However, varnishes containing 40 percent GP CK-2400 resin are entirely satisfactory for light tints. Enamels based on GP CK-2400 and a pentaerythritol rosin ester are fast drying and have excellent gloss. Tests have shown that their package stability is good.
GP CK-2400 resin/tung oil varnishes of 25-gallon oil length air-dry to handle in three hours and bake in 20 minutes at 275°F (135°C). Both 25-gallon GP CK-2400/linseed oil varnishes and GP CK-2400/dehydrated castor oil varnishes air-dry to handle in 10 hours and bake in 35 minutes at 275°F (135°C).
GP CK-2400 phenolic resin provides the varnish formulator with an expanded field of use for 100 percent phenolic resins. Varnishes based on fast-cooking GP CK-2400 exhibit excellent solubility in straight mineral spirits, fast surface dry, through dry, and good film color. These characteristics make GP CK-2400 resin an important resin in the formulation of spar varnishes, floor finishes, and durable exterior primers and enamels. With tung oil, it produces a rapid-drying vehicle for two-hour enamels. It produces durable primer vehicles for magnesium alloys, aluminum alloys, and wood; it also produces baking primers and enamel vehicles. When used in combination with low-cost pentaerythritol rosin ester type resins, it produces economical fast-drying floor varnishes, porch and deck enamels, air-drying or baking industrial primers, and four-hour enamel vehicles.
19
Formula Starting Points for Cooking Vehicles
PageFormula
Starting PointTitle Drying Oil
Oil Length,Gallons
21 VF-1247 Enamel Vehicle Tung Oil --
22 VF-1248Floor Varnish and two-Hour Enamel
VehicleTung Oil --
23 VF-1249Structural Steel Primer Vehicle
Linseed Oil --
24 VF-1251 Spar VarnishTung Oil/
Linseed Oil/ Castor Oil
25 VF-1331Porch and Deck Enamel Vehicle
Tung Oil/ Linseed Oil
Pentaerythritol Rosin Ester
26 VF-1311 Baking VarnishTung Oil/ Castor Oil
CK-1634
20
Ingredients Pounds Gallons
GP® CK-2400 Phenolic Resin 100 11
Tung Oil 133 17
Mineral Spirits 233 36
Total 466 64
Procedure:Based on 1.5-gallon laboratory batch. Heat the oil and resin to 450°F (232°C) in 45 minutes. Hold about 30 minutes for body and thin.
Properties: Oil Length 17 gal
Specific Gravity 0.885 (7.36 lb/gal)
Non-volatiles 50% by wt
Viscosity, Gardner-Holdt E
Color, Gardner 1933 8
Performance:Add 0.345% driers calculated as metal and based on the weight of oil present.
Drying:
1 hour Tacky, set to touch
2 hours Faint tack
4 hours Dry print-free
Resistance to 5% NaOH at 68°F (20°C):
48 hours OK
Skinning, ½-full 8-oz jar:
2 weeks None
Zinc Oxide, Reactivity None
Gas Checking, Bell Jar None
Kauri Reduction:
40% Passes
50% Fails
Formula Starting Point VF – 1247
Enamel Vehicle
21
Ingredients Pounds Gallons
GP® CK-2400 Phenolic Resin 100.0 11.0
Tung Oil 196.0 25.0
Mineral Spirits 243.0 37.5
Total 539.0 73.5
Procedure:Based on 1.5-gallon laboratory batch. Heat the oil and resin to 450°F (232°C) in 45 minutes. Hold about 25 minutes for body and thin.
Properties: Oil Length 25 gal
Specific Gravity 0.887 (7.38 lb/gal)
Non-volatiles 55% by wt
Viscosity, Gardner-Holdt E
Color, Gardner 1933 7
Performance: Add 0.345% driers, calculated as metal and based on the weight of oil present. Also add anti-skinning agent (0.7% based on the oil weight).
Drying:
1 hour Slight tack. Set to touch
3 hours Dry print-free.
Resistance to 5% NaOH at 68°F (20°C):
24 hours OK
Skinning, ½-full 8-oz jar:
2 weeks None
Zinc Oxide, Reactivity None
Gas Checking, Bell Jar None
Kauri Reduction:
120% Passes
130% Fails
Formula Starting Point VF – 1248
Floor Varnish and Two-Hour Enamel Vehicle
22
Ingredients Pounds Gallons
GP® CK-2400 Phenolic Resin 100.0 11.0
Linseed Oil, Alkali-Refined 194.0 25.0
Mineral Spirits 294.0 45.0
Total 588.0 81.0
Procedure:Based on 1.5-gallon laboratory batch. Heat the oil and resin to 585°F (307°C) in one hour and hold about 45 minutes for body. Cool to 465°F (241°C) in one hour and thin.
Properties: Oil Length 25 gal
Specific Gravity 0.880 (7.32 lb/gal)
Non-volatiles 50% by wt
Viscosity, Gardner-Holdt E
Color, Gardner 1933 12
Performance:Add 0.6% driers, calculated as metal and based on the weight of oil present.
Drying:
1 hour Wet, setting up
2 hours Tacky, set to touch
4 hours Slight tack
8 hours Faint tack
24 hours Dry print-free
Resistance to 5% NaOH at 68°F (20°C):
2 hours OK
Skinning, ½-full 8-oz jar:
2 weeks None
Zinc Oxide, Reactivity Very slight
Kauri Reduction:
80% Passes
90% Fails
Formula Starting Point VF – 1249
Structural Steel Primer Vehicle
23
Formula Starting Point VF-1251
Spar Varnish
Ingredients Pounds Gallons
GP® CK-2400 Phenolic Resin 100 11
Tung Oil 164 21
Linseed Oil, Alkali-Refined 85 11
Castor Oil, Refined 8 1
Mineral Spirits 280 43
Total 637 87
Procedure:
Based on 1.5 gallon laboratory batch. Heat the resin and linseed oil to 560°F (293°C) in 30 minutes and hold 20 minutes for body. Check with the tung oil (T 370°F/188°C). Heat to 450°F/232°C) in 10 minutes and hold about 40 minutes for body. Add the castor oil and thin.
Properties: Tung/Linseed/Castor 64/33/3% by wt
Oil Length 33 gal
Specific Gravity 0.890 (7.41 lb/gal)
Non-volatiles 56% by wt
Viscosity, Gardner-Holdt D
Color, Gardner 1933 10
Performance:Add 0.345% driers, calculated as metal and based on the weight of oil present.
Drying:
1 hour Tacky, set to touch
2 hours Slight tack
4 hours Very faint tack
6 hours Dry print-free
Resistance to 5% NaOH at 68°F (20°C):
3 hours OK
Skinning, ½-full 8-oz jar:
2 Weeks None
Zinc Oxide Reactivity None
Gas Checking, Gas Oven None
Kauri Reduction:
120% Passes
130% Fails
24
Ingredients Pounds Gallons
GP® CK-2400 Phenolic Resin 4011
Pentaerythritol Rosin Ester 60
Tung Oil 196 25
Linseed Oil (Viscosity Z-1) 40 5
Mineral Spirits 336 52
Total 672 93
Procedure:
Based on 1.5-gallon laboratory batch. Heat the tung oil and resins to 485°F (252°C) in 35 minutes and hold 30 minutes. Check with Z-1 linseed oil (T 450°F/232°). Hold about eight minutes at 450°F (232°C). Cool and thin.
Properties: Tung/Linseed 83/17% by wt
Oil Length 30 gal
Specific Gravity 0.880 (7.32 lb/gal)
Non-volatiles 50%
Viscosity, Gardner-Holdt E
Color, Gardner 1933 10
Add 0.345% driers, calculated as metal and based on the weight of oil present. Also add 0.5-fluid ounce of anti-skinning agent per gallon of varnish.
Performance: Drying:
1 hour Tacky, set to touch
2 hours Slight tack
4 hours Faint tack
6 hours Dry print-free
Resistance to 5% NaOH at 68°F (20°C):
18 hours OK
Skinning, ½-full 8-oz jar:
2 weeks None
Formula Starting Point VF – 1331
Porch and Deck Enamel Vehicle
25
Ingredients Pounds Gallons
GP® CK-2400 Phenolic Resin 7511.0
Phenolic Resin CK-1634 25
Tung Oil 94 12.0
Castor Oil* Dehydrated 62 8.0
Mineral Spirits 277 42.5
Xylene 36 5.0
Total 569 78.5
*Viscosity of G-H
Procedure:
Heat 75 lb of GP CK-2400, eight gallons of castor oil, and two gallons of tung oil to 565°F (296°C) in 30 minutes. Hold at 565°F (296°C) for 30 minutes and add 10 gallons of tung oil (T 420°F/216°C). Add CK-1634 and stir until melted (T 380°F/193°C) in five minutes. Reheat to 450°F (232°C) in five minutes and hold about two minutes for body. Thin and cool with balance of solvent.
Properties: Tung/Castor 60/40% by wt
Oil Length 20 gal
Specific Gravity 0.875 (7.28 lb/gal)
Non-volatiles 45% by wt
Viscosity, Gardner-Holdt F
Color, Gardner 1933 9
Performance:Bakes in one hour at 250°F (121°C) to a hard and tough film.
Zinc Oxide Reactivity Slight
Gas Checking, Oven None
Kauri Reduction:
120% Passes
130% Fails
Formula Starting Point VF – 1311
Baking Varnish
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Viscosity vs. Bodying Time at 450°F (232°C)
For GP® CK-2400 Resin/Tung Oil Varnishes
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Numbers on curves designate oil lengths. All values
are for varnishes at 50% non-volatiles in mineral spirits.
Graphs are intended as directional. Results for individual
formulations may vary.
Viscosity vs. Bodying Time at 585°F (307°C)
For GP® CK-2400 Resin/Alkali-Refined Linseed Oil Varnishes
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Numbers on curves designate oil lengths. All values
are for varnishes at 50% non-volatiles in mineral spirits.
Graphs are intended as directional. Results for
individual formulations may vary.
Bodying Time at 450°F (232°C) vs. Tung Oil Content
For GP® CK-2400 Resin/Tung Oil Varnishes
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Time required to body GP CK 2400/tung
oil varnishes at 450°F (232°C) to obtain
viscosity E when thinned to 50%
non-volatiles with mineral spirits.
Graphs are intended as directional. Results for
individual formulations may vary.
Bodying Time at 585°F (307°C) vs. Linseed Oil (Arlo)
Content For GP® CK-2400 Resin/Arlo Varnishes
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Time required to body GP CK 2400/ and
GP CK 2420/linseed oil varnishes at
585°F (307°C) to obtain viscosity E
when thinned to 50% non-volatiles
with mineral spirits.
Graphs are intended as directional. Results for
individual formulations may vary.
Viscosity vs. Solids
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Formula
GP® /Tung Oil (35/65)
“EXXON” Aromatic 100
Graphs are intended as directional. Results for individual
formulations may vary.
Specific Gravity @ 25°C 1.06 – 1.10
Softening Point 290 - 315°F
Color, Gardner 19331 8max
Footnotes:(1) Mix in toluene (1/1)
Packaging and Labeling
The standard package for GP CK-2400 resin is a four-ply multiwall bag containing 50 lb net of material. The bags are marked with the product and batch number
Shipping and Storage
Store GP CK-2400 resin in a cool dry place. Long periods of storage may cause some darkening, which is characteristic of phenolic materials. Although this characteristic may affect the color of GP CK-2400 in solution, it has no known deleterious effect on its other properties.
Typical Properties of GP® CK-2400 Resin
1, Acetone2. Butyl Acetate1-Nitropropane
3. TolueneXyleneIsopropanolButanolEthanol
4. CELLOSOLVE Solvent5. IsophoroneTurpentine
*Resin refluxed into solution and allowed to cool before being rated. Mineral spirits will dissolve GP CK-2400 resin when strengthened with an active solvent, such as isopropanol.
Solubility* of GP® CK-2400 ResinGrouped in order of decreasing solvent power.
*Supplier: Dow Chemical Company
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Typical Properties of GP® Phenolic Resins
GP Non-Heat Reactive Oil-Soluble Phenolic Resins
FormSoftening Point, °F (°C)
Specific Gravity
Color (a)
max
Solubility in Organic Solvents (b)
Aliphatics Aromatics Alcohols
GP CK-2103 Phenolic Resin
Flake215-245(102-118)
1.06-1.08 5(c) S(d) S S
GP CK-2400 Phenolic Resin
Flake290-315 (143-157)
1.06-1.110
8(c) C S S(d)
GP CK-2500 Phenolic Resin
Flake220-240 (104-116)
1.07-1.10 8(c) C S S(d)
GP CK-2420 Phenolic Resin
Flake248-282 (120-139)
1.02-1.06 6(c) S(d) S(d) S(d)
Footnotes:(a) Gardner (1963) Color Standards units.(b) S= Clear to light haze; C = Cloudy but suspended(c) Toluene (1:1)(d) The solubility characteristics in this solvent class depend upon the concentration
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IND-0157-1808 GP and the Georgia-Pacific logo are trademarks owned by or licensed to Georgia-Pacific Chemicals LLC. Cowles is a trademark owned by Cowles Dissolver Company, Inc. (registration cancelled). EXXOn is a trademark owned by Exxon Mobil Corporation. Cellosolve is a registered trademark owned by the Union Carbide Corporation.
The information and technical data herein is believed to be accurate. It is offered for your consideration, investigation and verification. Buyer assumes all risk of use, storage and handling of the product. EXCEPT AS SET FORTH IN OUR STANDARD TERMS OF SALE REGARDING THE PRODUCT, NO WARRANTY, EXPRESSOR IMPLIED, IS MADE INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WHICH ARE SPECIFICALLY EXCLUDED. Nothing contained herein shall be construed as a license to operate under or recommendation to infringe any patents.
© 2018 Georgia-Pacific Chemicals LLC, All rights reserved.
Georgia-Pacific Chemicals LLC
[email protected] (447-2436)www.gp-chemicals.com
133 Peachtree St., NEAtlanta, GA 30303
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