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Coverage GALVANIZED SURFACES
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Polyeuro 7502 may be applied at any rate to achieve desired Clean and degrease any contaminated surfaces before
thickness. Theoretical coverage for 1 mil (0.254 microns) priming. Do not blast galvanized surfaces with an abrasive
thickness is one gallon per 1600 sqft (3.78 liters per 149 sqm). grit. An adhesion test is recommended prior to starting the
project.
Estimating Formula:
FIBERGLASS REINFORCED PLASTIC
(1600 sqft per gal /Dry Mil Thickness) x Solids Content = The gel coat should be lightly blasted or sanded with 80 grit
Application Rate per gallon
sandpaper and cleaned.
Surface Preparation
In general, coating performance and adhesion are directly PLASTIC FOAMS
Enhanced adhesion is obtained when the foam is mechanically
proportional to surface preparation. Most failures in the abraded. When coating polystyrene, do not use a solvent-
performance of surface coatings can be attributed to poor based primer.
surface preparation. Polyurea coatings rely on the structural
strength of the substrate to which they are applied. All surfaces TEXTILES, CANVAS, FABRICS
must be free of dust, dirt, oil, grease, rust, corrosion and other Adhesion to most fabrics, geothermal membranes and textiles
contaminants. When coating previously used substrates, it is does not require a primer.
important to consider the possibility of substrate absorption,
which may affect the adhesion of the coating system, STAINLESS STEEL
regardless of the surface preparation. Polycoat recognizes Stainless steel may be grit blasted and degreased before
the potential for unique substrates from one project to another. priming. Some stainless steel alloys are so inert that it is not
The following information is for general reference. For project- possible to achieve a satisfactory bond. An adhesion test is
specific questions, contact Polycoat. recommended prior to starting the project.
NEW AND OLD CONCRETE NEW AND OLD CAST IRON
Refer to SSPC-SP13/NACE 6, or ICRI 03732: CSP 3-5. New Blast with a steel grit and degrease before priming. Old cast
concrete must be cured for 28 days prior to product application. iron is difficult to prepare for a satisfactory bond. It can absorb
Surface must be clean, dry, sound and offer sufficient profile oil and water soluble contaminants that will keep returning
for product adhesion. Remove all dust, dirt, oil, form release to the surface after the coating system has been applied
agents, curing compounds, salts, efflorescence, laitance and and affect the coating system adhesion. An adhesion test is
other foreign matter by shotblasting and/or suitable chemical recommended prior to starting the project.
means, in accordance with local chemical regulations. Rinse ALL OTHER SURFACES
thoroughly, to achieve a pH between 8.0 and 11.0. Allow to dry An adhesion test is recommended prior to starting the project.
completely. If old concrete has a surface that has deteriorated
to an unacceptably rough surface, PC-260 or a mixture of Mixing
Polyprime 21 and sand should be used as a repair agent Polyeuro 7502 may not be diluted under any circumstances.
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for cracks, spalls, bug holes and voids. Upon full cure of the Thoroughly mix Polyeuro 7502 Side-B with air driven power
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repair agent, prime the entire surface intended for coating. equipment until a homogeneous mixture and color is attained.
CONCRETE SURFACE PREPARATION REFERENCE Application
ASTM D4258 - Standard practice for cleaning concrete. ASTM Both Side-A and Side-B materials should be preconditioned to
D4259 - Standard practice for abrading concrete. ASTM D4260 - 75-80°F (24-27°C) before application. Recommended surface
Standard practice for etching concrete. ASTM F1869 - Standard temperature must be at least 5°F (3°C) above the dew point.
test method for measuring moisture vapor emission rate of Polyeuro 7502 should be applied using a plural component,
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concrete. ICRI 03732 - Concrete surface preparation. heated, high pressure 1:1 spray mixing equipment like Graco’s
Reactor, Glass Craft or other equivalent machine may be used.
WOOD Both Side-A and Side-B materials should be sprayed at a
All wood should be clean, dry and free of any knots, splinters, minimum of 2000 psi and at temperatures above 150°F (66°C).
oil, grease or other contaminants. Splintered or rough areas Adequate pressure and temperature should be maintained
should be sanded. Knots should be repaired using PC-260 at all times. Polyeuro 7502 should be sprayed in smooth,
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with sand. Upon full cure of the repair agent, prime the entire multidirectional passes to improve uniform thickness and
surface intended for coating.
appearance.
STEEL (ATMOSPHERIC AND IMMERSION EXPOSURE) Storage
Remove all oil, grease, weld spatters and round off any sharp Polyeuro 7502 has a shelf life of 1 year from date of
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edges from surface. Minimum surface preparation is Near manufacture in original, factory-sealed containers when stored
White Metal Blast Cleaning per SSPC-SP10/NACE 2. Optimum indoors at a temperature between 60-95°F (15-35°C).Side-A
surface profile is 2-3 mils. Prime and shoot Polyeuro on to and Side-B drums are recommended to be stored above 60°F
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any bare metal the same day as it is cleaned to minimize any (15°C). Avoid freezing temperatures. Store drums on wooden
potential flash rusting. pallets to avoid direct contact with the ground. If stored for a
ALUMINUM long period of time, rotate Side-A and Side-B drums regularly.
Aluminum should be blasted with aluminum oxide or sand, Limitations
and not with steel or metal grit. Excessive blasting may Do not open until ready to use. Both Side-A and Side-B
result in a warped or deformed surface. After blasting, wash containers must be fitted with a desiccant device during use.
aluminum with a commercially available aluminum cleaner.
Allow to dry, then prime. Warning
BRASS AND COPPER This product contains Isocyanates and Curative Material.
Brass and copper should be blasted with sand, and not
with steel or metal grit. Remove all dust and grease prior to
applying primer.

POLYCOAT PRODUCTS TEL 562.802.8834 | FAX 562.921.7363 Section 3.1
info@polycoatusa.com | www.polycoatusa.com