Page 100 - Polycoat 10.2 Technical Data Sheet Polycaulk 82

TECHNICAL DATA SHEET
POLYEURO MH-872
®
Two Component Aromatic Hybrid
Polyurethane Protective Coating

Product Description
®
Polyeuro MH-872 is a fast set, rapid curing, aromatic, two Technical Data (Based on Draw Down Film)
component hybrid polyurea/polyurethane spray designed to
be applied over EPS, wood, and many other surfaces with Mix Ratio by Volume 1A : 1B
better heat stability and greater stiffness. Its excellent balance Pot Life @ 150ºF (65.5ºC), 50% R.H. 2-4 seconds
of stiffness and impact resistance provides excellent plastic Tack Free Time (thickness & substrate 30-45 seconds
“shell-like” protection for delicate foams and EPS. Polyeuro temperature dependent)
®
MH-872’s chemical design allows fast “user-friendly”
application with excellent flow and appearance. Recoat Time 0-2 hours
Viscosity at 150-160°F (66.5-71°C)
Side-A 50 ± 20 cps
Features Side-B 150± 50 cps
• 100% Solids Density (Side-A & Side-B Combined) 9.5 lbs/gal
• Excellent Chemical Protection Flash Point > 200°F (93.3°C)
• Excellent Cold Temperature Impact Hardness, ASTM D2240 85 ± 3 D
• Excellent Thermal Stability
4500 ± 200 psi
• Fast Cure Tensile Strength, ASTM D412* 31.03 ± 1.37 MPa
• High Productivity
• Low Shrinkage Elongation, ASTM D412* 10 ± 5%
• Meets USDA Criteria Tear Resistance, ASTM D412* 500 ± 50 pli
• Plastic “Shell-Like” Protection 87.5 ± 8.7 kNm
• Zero VOC Service Temperature - Dry -40°F to 300°F
40°C to 120°C
Typical Uses *These physical properties from sample sprayed with Graco Foam Cat 200 @ 2000 psi minimum,
with Gusmer GX7-400 mechanical purge gun @ 150-160°F (65°C to 71°C). Different machine
• Architectural Shapes and parameter will change these properties. User should perform their own independent testing
as properties are approximate.
• Decorations / Props
• Dock Flotations
• Faux Rock Surface Preparation
• Food-Processing Plants In general, coating performance and adhesion are directly
proportional to surface preparation. Most failures in the
• Speaker Boxes performance of surface coatings can be attributed to poor
• Steel Coating surface preparation. Polyurea coatings rely on the structural
• Wood Cabinets strength of the substrate to which they are applied. All surfaces
• Wood Pallets / Crates must be free of dust, dirt, oil, grease, rust, corrosion and other
contaminants. When coating previously used substrates, it is
Packaging important to consider the possibility of substrate absorption,
which may affect the adhesion of the coating system,
10-gallon kit 5 gallons (18.9 liters) Side-A and 5 regardless of the surface preparation. Polycoat recognizes
gallons (18.9 liters) Side-B the potential for unique substrates from one project to another.
The following information is for general reference. For project-
specific questions, contact Polycoat.
100-gallon kit 50 gallons (189 liters) Side-A and 50
gallons (189 liters) Side-B NEW AND OLD CONCRETE
Refer to SSPC-SP13/NACE 6, or ICRI 03732: CSP 3-5. New
concrete must be cured for 28 days prior to product application.
Colors Surface must be clean, dry, sound and offer sufficient profile
Clear/Neutral. Custom colors are available upon request. Color for product adhesion. Remove all dust, dirt, oil, form release
Packs, when used, must be added to Side-B. agents, curing compounds, salts, efflorescence, laitance and
other foreign matter by shotblasting and/or suitable chemical
Due to its aromatic composition, Polyeuro MH-872 will tend to means, in accordance with local chemical regulations. Rinse
®
yellow or darken in color and will become flat after exposure thoroughly to achieve a pH between 8.0 and 11.0. Allow to dry
®
to UV light. Polyeuro MH-872 may be topcoated within twelve completely. If old concrete has a surface that has deteriorated
hours of application with an ali-phatic polyurethane/polyurea to an unacceptably rough surface, Polycoat Products PC-260
coating for a colorfast finish. or a mixture of Polyprime 21 and sand should be used as a
Coverage repair agent for cracks, spalls, bug holes and voids. Upon full
cure of the repair agent, prime the entire surface intended
Theoretical coverage for 1 mil (0.254 microns) thickness is for coating.
one gallon per 1600 sqft (3.78 liters per 149 sqm).
Estimating Formula: (1600 sqft per gal /Dry Mil Thickness) x CONCRETE SURFACE PREPARATION REFERENCE
Solids Content = Application Rate per gallon. ASTM D4258 - Standard practice for cleaning concrete.

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