Page 178 - Polycoat 1.1 Table of Contents

NEW AND OLD CONCRETE STAINLESS STEEL
Refer to SSPC-SP13/NACE 6, or ICRI 03732: CSP 3-5. New Stainless steel may be grit blasted and degreased before
concrete must be cured for 28 days prior to product application. priming. Some stainless steel alloys are so inert that it is not
Surface must be clean, dry, sound and offer sufficient profile possible to achieve a satisfactory bond. An adhesion test is
for product adhesion. Remove all dust, dirt, oil, form release recommended prior to starting the project.
agents, curing compounds, salts, efflorescence, laitance and
other foreign matter by shotblasting and/or suitable chemical NEW AND OLD CAST IRON
means, in accordance with local chemical regulations. Rinse Blast with a steel grit and degrease before priming. Old cast
thoroughly, to achieve a pH between 8.0 and 11.0. Allow to dry iron is difficult to prepare for a satisfactory bond. It can absorb
completely. If old concrete has a surface that has deteriorated oil and water soluble contaminants that will keep returning
to an unacceptably rough surface, Polycoat Products PC-260 to the surface after the coating system has been applied
or a mixture of Polyprime 21 and sand should be used as a and affect the coating system adhesion. An adhesion test is
repair agent for cracks, spalls, bug holes and voids. Upon full recommended prior to starting the project.
cure of the repair agent, prime the entire surface intended ALL OTHER SURFACES
for coating. An adhesion test is recommended prior to starting the project.
CONCRETE SURFACE PREPARATION REFERENCE Mixing
ASTM D4258 - Standard practice for cleaning concrete Polyeuro 5901 may not be diluted under any circumstances. Use
ASTM D4259 - Standard practice for abrading concrete appropriate cleaner for purge line and flushing of equipment
ASTM D4260 - Standard practice for etching concrete and if spraying stops for periods exceeding the pot life of the
ASTM F1869 - Standard test method for measuring moisture material. Thoroughly mix Polyeuro 5901 Side-B (Resin side)
vapor emission rate of concrete with air driven power equipment until a homogeneous mixture
ICRI 03732 - Concrete surface preparation and color is obtained.
WOOD Application
All wood should be clean, dry and free of any knots, splinters, Both Side-A and Side-B materials should be preconditioned
oil, grease or other contaminants. Splintered or rough areas to 75-80°F (24-27°C) before application.
should be sanded. Knots should be repaired using Polycoat
Products PC-260 with sand. Upon full cure of the repair agent, Recommended surface temperature must be at least 5°F (3°C)
prime the entire surface intended for coating. above the dew point.
Polyeuro 5901 should be applied using a plural component,
STEEL (ATMOSPHERIC AND IMMERSION EXPOSURE) heated, high pressure 1:1 spray mixing equipment like Graco’s
Remove all oil, grease, weld spatters and round off any sharp Reactor, Glass Craft or other equivalent machine may be used.
edges from surface. Minimum surface preparation is Near
White Metal Blast Cleaning per SSPC-SP10/NACE 2. Optimum Both Part-A and Side-B materials should be sprayed at a
surface profile is 3-4 mils. Prime and shoot Polyeuro on to minimum of 2000 psi and at temperatures above 150°F. (66°C).
®
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.
Polyeuro 5901 should be sprayed in smooth, multidirectional
ALUMINUM
Aluminum should be blasted with aluminum oxide or sand, passes to improve uniform thickness and appearance.
and not with steel or metal grit. Excessive blasting may Storage
result in a warped or deformed surface. After blasting, wash Polyeuro 5901 has a shelf life of six (6) months from date
aluminum with a commer-cially available aluminum cleaner. of manufacture in original, factory-sealed containers when
Allow to dry, then prime. stored indoors at a temperature between 60-95°F (15-35°C).
BRASS AND COPPER Avoid freezing temperatures.
Brass and copper should be blasted with sand, and not Store drums on wooden pallets to avoid direct contact with
with steel or metal grit. Remove all dust and grease prior to the ground.
applying primer.
If stored for a long period of time, rotate Side-A and Side-B
GALVANIZED SURFACES drums regularly
Clean and degrease any contaminated surfaces before Limitations
priming. Do not blast galvanized surfaces with an abrasive Do not open until ready to use. Both Side-A and Side-B
grit. An adhesion test is recommended prior to starting the containers must be fitted with a desiccant device during use.
project.
Warning
FIBERGLASS REINFORCED PLASTIC
The gel coat should be lightly blasted or sanded with 80 grit This product contains Isocyanates and Curative Material.
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.
TEXTILES, CANVAS, FABRICS
Adhesion to most fabrics, geothermal membranes and textiles
does not require a primer.

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