Page 16 - Polycoat 10.2 Technical Data Sheet Polycaulk 82

recognizes the potential for unique substrates from one project Blast with a steel grit and degrease before priming. Old cast
to another. The following information is for general reference. iron is difficult to prepare for a satisfactory bond. It can absorb
For project-specific questions, contact Polycoat. oil and water soluble contaminants that will keep returning
to the surface after the coating system has been applied
NEW AND OLD CONCRETE and affect the coating system adhesion. An adhesion test is
Refer to SS PC-SP13/NACE 6, or ICRI 03732: CSP 3-5. New recommended prior to starting the project.
concrete must be cured for 28 days prior to product application.
Surface must be clean, dry, sound and offer sufficient profile ALL OTHER SURFACES
for product adhesion. Remove all dust, dirt, oil, form release An adhesion test is recommended prior to starting the project.
agents, curing compounds, salts, efflorescence, laitance and Mixing
other foreign matter by shotblasting and/or suitable chemical Polyeuro MPL 11 may not be diluted under any circum-
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means, in accordance with local chemical regulations. Rinse stances. Thoroughly mix Polyeuro MPL 82 Part-B (Resin side)
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thoroughly, to achieve a pH between 8.0 and 11.0. Allow to dry with air driven power equipment until a homogeneous mixture
completely. If old concrete has a surface that has deteriorated and color is obtained.
to an unacceptably rough surface, Polycoat Products PC-260
or a mixture of Polyprime 21 and sand should be used as a Application
repair agent for cracks, spalls, bug holes and voids. Upon full Both Side-A and Side-B materials should be preconditioned
cure of the repair agent, prime the entire surface intended to 75-80°F (24-27°C) before application.
for coating. Recommended surface temperature must be at least 5°F (3°C)
CONCRETE SURFACE PREPARATION REFERENCE above the dew point.
ASTM D425 8 - Standard practice for cleaning concrete. ASTM ®
D4259 - Standard practice for abrading concrete. ASTM D4260 - Polyeuro MPL 11 should be applied using a plural compo-
Standard practice for etching concrete. ASTM F1869 - Standard nent, heated, high pressure 1:1 spray mixing equipment like
test method for measuring moisture vapor emission rate of Graco’s Reactor, Glass Craft or other equivalent machine may
concrete. ICRI 03732 - Concrete surface preparation. 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 Polycoat at all times.
Products PC-260 with sand. Upon full cure of the repair agent, Polyeuro MPL 11 should be sprayed in smooth, multi-
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prime the entire surface intended for coating. directional passes to improve uniform thickness and ap-
STEEL (ATMOSPHERIC AND IMMERSION EXPOSURE) pearance.
Remove all oil, grease, weld spatters and round off any sharp
edges from surface. Minimum surface preparation is Near Storage
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White Metal Blast Cleaning per SSPC-SP10/NACE 2. Optimum Polyeuro MPL 11 has a shelf life of six (6) months from date
surface profile is 3-4 mils. Prime and shoot Polyeuro® onto of manufacture, in factory-sealed containers. at a temperature
any bare metal the same day as it is cleaned to minimize any between 60-95°F (15-35°C).
potential flash rusting. Side-A and Side-B drums are recommended to be stored
GALVANIZED SURFACES above 60°F (15°C). Avoid freezing temperatures.
Clean and degrease any contaminated surfaces before Store drums on wooden pallets to avoid direct contact with
priming. Do not blast galvanized surfaces with an abrasive the ground.If stored for a long period of time, rotate Side-A
grit. An adhesion test is recommended prior to starting the and Side-B drums regularly.
project.
FIBERGLASS REINFORCED PLASTIC Limitations
The gel coat should be lightly blasted or sanded with 80 grit Do not open until ready to use.
sandpaper and cleaned. Both Side-A and Side-B containers must be fitted with a
PLASTIC FOAMS desiccant device during use.
Enhanced adhesion is obtained when the foam is mechanically
abraded. When coating polystyrene, do not use a solvent- Warning
based primer. This product contains Isocyanates and Curative Material.
TEXTILES, CANVAS, FABRICS
Adhesion to most fabrics, geothermal membranes and textiles
does not require a primer.
STAINLESS STEEL
Stainless steel may be grit blasted and degreased before
priming. Contact Polycoat Products for recommended primer.
Some stainless steel alloys are so inert that it is not possible to
achieve a satisfactory bond. An adhesion test is recommended
prior to starting the project.
ALUMINUM
Aluminum should be blasted with aluminum oxide or sand,
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

POLYCOAT PRODUCTS TEL 562.802.8834 | FAX 562.921.7363
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