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contaminants. When coating substrates previously used, it is TEXTILES, CANVAS, FABRICS
important to consider the possibility of substrate absorption, Adhesion to most fabrics, geothermal membranes and textiles
which may affect the adhesion of the coating system, does not require a primer.
regardless of the surface preparation. Polycoat recognizes STAINLESS STEEL
the potential for unique substrates from one project to another. Stainless steel may be grit blasted and degreased before
The following information is for general reference, and for priming. Some stainless steel alloys are so inert that it is not
project-specific questions, contact Polycoat. possible to achieve a satisfactory bond. An adhesion test is
recommended prior to starting the project.
NEW AND OLD CONCRETE
Refer to SSPC-SP13/NACE 6, or ICRI 03732: CSP 3-5. New NEW AND OLD CAST IRON
concrete must be cured for 28 days prior to product application. Blast with a steel grit and degrease before priming. Old cast
Surface must be clean, dry, sound and offer sufficient profile iron is difficult to prepare for a satisfactory bond. It can absorb
for product adhesion. Remove all dust, dirt, oil, form release oil and water soluble contaminants that will keep returning
agents, curing compounds, salts, efflorescence, laitance and to the surface after the coating system has been applied
other foreign matter by shotblasting and/or suitable chemical and affect the coating system adhesion. An adhesion test is
means, in accordance with local chemical regulations. Rinse recommended prior to starting the project.
thoroughly, to achieve a pH between 8.0 and 11.0. Allow to dry ALL OTHER SURFACES
completely. If old concrete has a surface that has deteriorated An adhesion test is recommended prior to starting the project.
to an unacceptably rough surface, Polycoat Products PC-260 Mixing
or a mixture of Polyprime 21 and sand should be used as a ®
repair agent for cracks, spalls, bug holes and voids. Upon full Polyeuro 5502-18PW may not be diluted under any
®
cure of the repair agent, prime the entire surface intended circumstances. Thoroughly mix Polyeuro 5502-18PW Side-B
for coating. with air driven power equipment until a homogeneous mixture
and color is obtained.
CONCRETE SURFACE PREPARATION REFERENCE
ASTM D4258 - Standard practice for cleaning concrete Application
ASTM D4259 - Standard practice for abrading concrete Both Side-A and Side-B materials should be preconditioned to
ASTM D4260 - Standard practice for etching concrete 75-80°F (24-27°C) before application. Recommended surface
ASTM F1869 - Standard test method for measuring moisture vapor temperature must be at least 5°F (3°C) above the dew point.
emission rate of concrete Polyeuro 5502-18PW should be applied using a plural
®
ICRI 03732 - Concrete surface preparation. component, heated, high pressure 1:1 spray mixing equipment
WOOD like Graco’s Reactor, Glass Craft or other equivalent machine
All wood should be clean, dry and free of any knots, splinters, may be used. Both Side-A and Side-B materials should be
oil, grease or other contaminants. Splintered or rough areas sprayed at a minimum of 2000 psi and at temperatures above
should be sanded. Knots should be repaired using Polycoat 150°F (66°C). Adequate pressure and temperature should be
Products PC-260 with sand. Upon full cure of the repair agent, maintained at all times.
prime the entire surface intended for coating. Polyeuro 5502-18PW should be sprayed in smooth,
®
STEEL (ATMOSPHERIC AND IMMERSION EXPOSURE) multidirectional passes to improve uniform thickness and
Remove all oil, grease, weld spatters and round off any sharp appearance.
edges from surface. Minimum surface preparation is Near
White Metal Blast Cleaning per SSPC-SP10/NACE 2. Optimum Storage
surface profile is 3-4 mils. Prime and shoot Polyeuro 5502- Polyeuro 5502-18PW has a shelf life of one (1) year from date
®
®
18PW on to any bare metal the same day as it is cleaned to of manufacture in original, factory-sealed containers when
minimize any potential flash rusting. stored indoors at a temperature between 60-95°F (15-35°C).
ALUMINUM Side-A and Side-B drums are recommended to be stored
Aluminum should be blasted with aluminum oxide or sand, above 60°F (15°C). Avoid freezing temperatures.
and not with steel or metal grit. Excessive blasting may Store drums on wooden pallets to avoid direct contact with
result in a warped or deformed surface. After blasting, wash the ground. If stored for a long period of time, rotate Side-A
aluminum with a commercially available aluminum cleaner. and Side-B drums regularly.
Allow to dry, then prime.
BRASS AND COPPER Limitations
Brass and copper should be blasted with sand, and not Do not open until ready to use.
with steel or metal grit. Remove all dust and grease prior to Both Side-A and Side-B containers must be fitted with a
applying primer. desiccant device during use.
GALVANIZED SURFACES
Clean and degrease any contaminated surfaces before Warning: This product contains Isocyanates and Curative Material.
priming. Do not blast galvanized surfaces with an abrasive
grit. An adhesion test is recommended prior to starting the
project.
FIBERGLASS REINFORCED PLASTIC
The gel coat should be lightly blasted or sanded with 80 grit
sandpaper and cleaned.
PLASTIC FOAMS
Enhanced adhesion is obtained when the foam is mechanically
abraded. When coating polystyrene, do not use a solvent-
based primer.

POLYCOAT PRODUCTS TEL 562.802.8834 | FAX 562.921.7363
info@polycoatusa.com | www.polycoatusa.com Section 3.5