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CONCRETE SURFACE PREPARATION REFERENCE Mixing
ASTM D425 8 - Standard practice for cleaning concrete. ASTM Polyeuro 7851 may not be diluted under any circumstances.
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D4259 - Standard practice for abrading concrete. ASTM D4260 - Thoroughly mix Polyeuro 7851 Side-B (Resin side) with air
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Standard practice for etching concrete. ASTM F1869 - Standard driven power equipment until a homogeneous mixture and
test method for measuring moisture vapor emission rate of color is obtained.
concrete. ICRI 03732 - Concrete surface preparation.
WOOD Application
All wood should be clean, dry and free of any knots, splinters, Both Side-A and Side-B material should be preconditioned at
oil, grease or other contaminants. Splintered or rough areas 80-90°F (27-32°C) before application.
should be sanded. Knots should be repaired using Polycoat Polyeuro 7851 should be applied using a plural component,
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Products PC-260 with sand. Upon full cure of the repair agent, heated, high pressure 1:1 spray mixing equipment like Graco’s
prime the entire surface intended for coating. Reactor, Glass Craft or other equivalent machine may be used.
STEEL (ATMOSPHERIC AND IMMERSION EXPOSURE) Recommended surface temperature must be at least 5°F (3°C)
Remove all oil, grease, weld spatters and round off any sharp above the dew point.
edges from surface. Minimum surface preparation is Near
White Metal Blast Cleaning per SSPC-SP10/NACE 2. Optimum Both Side-A and Side-B materials should be sprayed at a
surface profile is 3-4 mils. Prime and shoot Polyeuro onto minimum of 2000 psi and at temperatures above 150°F (66°C).
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any bare metal the same day as it is cleaned to minimize any Adequate pressure and temperature should be maintained
potential flash rusting. at all times.
GALVANIZED SURFACES Polyeuro 7851 should be sprayed in smooth, multidirectional
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Clean and degrease any contaminated surfaces before passes to improve uniform thickness and appearance.
priming. Do not blast galvanized surfaces with an abrasive
grit. An adhesion test is recommended prior to starting the Storage
project. Polyeuro 7851 has a shelf life of one (1) year from date of
FIBERGLASS REINFORCED PLASTIC manufacture in original, factory-sealed containers when stored
indoors at a temperature between 60-95°F (15-35°C).
The gel coat should be lightly blasted or sanded with 80 grit
sandpaper and cleaned. Side-A and Side-B drums are recommended to be stored
PLASTIC FOAMS above 60°F (15°C). Avoid freezing temperatures.
Enhanced adhesion is obtained when the foam is mechanically Store drums on wooden pallets to avoid direct contact with
abraded. When coating polystyrene, do not use a solvent- the ground. If stored for a long period of time, rotate Side-A
based primer. and Side-B drums regularly.
TEXTILES, CANVAS, FABRICS
Adhesion to most fabrics, geothermal membranes and textiles Limitations
does not require a primer. Do not open until ready to use.
STAINLESS STEEL Warning
Stainless steel may be grit blasted and degreased before This product contains Isocyanates and Curative Material.
priming. Contact Polycoat Products for recommended primer. This product is considered Dangerous Goods. DOT regulations classify
Some stainless steel alloys are so inert that it is not possible to it as:
achieve a satisfactory bond. An adhesion test is recommended Side-A: Other Regulated Substances, Liquid, N.O.S.
prior to starting the project. (Dicyclohexylmetheane-4, 4’-Diisocyanate), Class 9, NA 3082, PG III.
ALUMINUM Side-B: AMINES, liquid, corrosive, N.O.S (polyoxypropylenediamine),
Aluminum should be blasted with aluminum oxide or sand, Class 8, UN 2735, PG III, CORROSIVE
and not with steel or metal grit. Excessive blasting may
result in a warped or deformed surface. After blasting, wash
aluminum with a commercially available aluminum cleaner.
Allow to dry, then prime. Contact Polycoat Products for
recommended primer.
NEW AND OLD CAST IRON
Blast with a steel grit and degrease before priming. Old cast
iron is difficult to prepare for a satisfactory bond. It can absorb
oil and water soluble contaminants that will keep returning
to the surface after the coating system has been applied
and affect the coating system adhesion. An adhesion test is
recommended prior to starting the project.
ALL OTHER SURFACES
An adhesion test is recommended prior to starting the project.
POLYCOAT PRODUCTS TEL 562.802.8834 | FAX 562.921.7363 Section 3.2
info@polycoatusa.com | www.polycoatusa.com