Page 42 - Polycoat 10.2 Technical Data Sheet Polycaulk 82

minutes prior to application. Total suspension must be TEXTILES, CANVAS, FABRICS
achieved. Side-A requires no mixing. Adhesion to most fabrics, geothermal membranes and textiles
does not require a primer.
Surface Preparation
In general, coating performance and adhesion are directly STAINLESS STEEL
proportional to surface preparation. Most failures in the Stainless steel may be grit blasted and degreased before
performance of surface coatings can be attributed to poor priming. Contact Polycoat Products for recommended primer.
surface preparation. Polyurea coatings rely on the structural Some stainless steel alloys are so inert that it is not possible to
strength of the substrate to which they are applied. All surfaces achieve a satisfactory bond. An adhesion test is recommended
must be free of dust, dirt, oil, grease, rust, corrosion and other prior to starting the project.
contaminants. When coating previously used substrates, it is
important to consider the possibility of substrate absorption, ALUMINUM
which may affect the adhesion of the coating system, Aluminum should be blasted with aluminum oxide or sand,
regardless of the surface preparation. Polycoat recognizes and not with steel or metal grit. Excessive blasting may
the potential for unique substrates from one project to another. result in a warped or deformed surface. After blasting, wash
The following information is for general reference. For project- aluminum with a commercially available aluminum cleaner.
specific questions, contact Polycoat. Allow to dry, then prime. Contact Polycoat Products for
recommended primer.
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
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 Apply over prepared or suitably primed carbon steel or
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cure of the repair agent, prime the entire surface intended concrete. Application temperature for Polyeuro 1050H should
for coating. be between 40-120°F (4.4-40°C) with relative humidity of <85%.
Do not apply product unless temperature is at least 5° (3°C)
CONCRETE SURFACE PREPARATION REFERENCE above the dew point. Recoat schedule is 1-3 hours dependent
ASTM D4258 - Standard practice for cleaning concrete. upon environment.
ASTM D4259 - Standard practice for abrading concrete.
ASTM D4260 - Standard practice for etching concrete. Application Methods
ASTM F1869 - Standard test method for measuring moisture vapor Check area of application to ensure that it conforms to the
emission rate of concrete. substrate requirements.
ICRI 03732 - Concrete surface preparation. Use Graco “Hydra-Cat” 45:1 Airless equipment or equal
WOOD designed for heated, plural-component, high pressure spray
All wood should be clean, dry and free of any knots, splinters, application. High pressure equipment should have the
oil, grease or other contaminants. Splintered or rough areas capacity to apply product to a maximum 2500 psi from the
should be sanded. Knots should be repaired using Polycoat proportioner to meet job site conditions. Heat and maintain
Products PC-260 with sand. Upon full cure of the repair agent, material temperature in a range of 95-110°F (35-43°C) and
prime the entire surface intended for coating. utilize insulated material hoses and application equipment
to ensure spray consistency, metering and degree of cure of
STEEL (ATMOSPHERIC AND IMMERSION properly mixed product. Band heaters should not be used to
EXPOSURE) heat or maintain temperature.
Remove all oil, grease, weld spatters and round off any sharp
edges from surface. Minimum surface preparation is Near The conditioned materials shall be supplied to the proportioning
White Metal Blast Cleaning per SSPC-SP10/NACE 2. Optimum equipment at a flowable, pumpable viscosity, and in such
surface profile is 3-4 mils. Prime and shoot Polyeuro onto volume delivery to assure full supply for each pump stroke.
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any bare metal the same day as it is cleaned to minimize any Recirculation system and solvent purge equipment is
potential flash rusting. necessary to keep material maintained and spray equipment
clean during application stoppage and/or for periods when
GALVANIZED SURFACES exceeding the product potlife.
Clean and degrease any contaminated surfaces before
priming. Do not blast galvanized surfaces with an abrasive Equipment Cleanup
grit. An adhesion test is recommended prior to starting the Equipment should be cleaned with an environmentally safe,
project. urethane-grade solvent (alcohol free) as permitted under local
regulations immediately after use
FIBERGLASS REINFORCED PLASTIC
The gel coat should be lightly blasted or sanded with 80 grit Storage
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sandpaper and cleaned. Polyeuro 1050H has a shelf life of one (1) year year from date
of manufacture in original, factory-sealed containers when
PLASTIC FOAMS stored indoors at a temperature between 60-95°F (15-35°C).
Enhanced adhesion is obtained when the foam is mechanically
abraded. When coating polystyrene, do not use a solvent- Side-A and Side-B drums are recommended to be stored
based primer.

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