Page 93 - Polycoat 10.2 Technical Data Sheet Polycaulk 82

TECHNICAL DATA SHEET
POLYEURO MH-751FR
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Fire Retardant Two Component Aromatic Hybrid
Polyurethane Protective Coating

Product Description
Polyeuro MH-751FR is a Class 1 fire-rated, fast set, rapid curing, Technical Data (Based on Draw Down Film)
®
aromatic, two component, hybrid polyurea/polyurethane Mix Ratio by Volume 1A : 1B
spray designed to be applied over EPS, wood, and many Pot Life @ 150ºF (65.5ºC), 50% R.H. 4-6 seconds
other surfaces. Its excellent balance of stiffness and impact
resistance provides excellent plastic “shell-like” protection Tack Free Time (thickness & substrate 60-120 seconds
for delicate foams and EPS. Polyeuro MH-751FR’s chemical temperature dependent)
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design allows fast “user-friendly” application with excellent Recoat Time 0-12 hours
flow and appearance. Viscosity at 150-160°F (66.5-71°C)
Side-A 150 ± 20 cps
Features Side-B 250 ± 50 cps
• 100% Solids Density (Side-A & Side-B Combined) 10.23 lbs/gal
• Excellent Chemical Protection Flash Point > 200°F (93.3°C)
• Excellent Cold Temperature Impact Hardness, ASTM D2240 75 ± 5 D
• Excellent Thermal Stability
2500 ± 200 psi
• Fast Cure Tensile Strength, ASTM D412* 17.23 ± 1.37 MPa
• High Productivity
• Low Shrinkage Elongation, ASTM D412* 10 ± 5%
• Meets ASTM E84 Class 1 Fire Test Criteria Tear Resistance, ASTM D412* 400 ± 30 pli
• Meets USDA Criteria 69.9 ± 5.2 kNm
• Plastic “Shell-Like” Protection Service Temperature - Dry -40°F to 300°F
40°C to 120°C
• Zero VOC
*These physical properties from sample sprayed with Graco Foam Cat 200 @ 2000 psi minimum,
Typical Uses with Gusmer GX7-400 mechanical purge gun @ (65°C to 71°C) Different machine and parameter
will change these properties. User should perform their own independent testing as properties
are approximate.
• Decorations / Props
• Architectural Shapes
• Steel Coating Coverage
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• Food-Processing Plants Polyeuro MH-751FR may be applied at any rate to achieve
• Speaker Boxes desired thickness. Theoretical coverage for 1 mil (0.254
microns) thickness is one gallon per 1600 sqft (3.78 liters per
• Dock Flotations 149 sqm).
• Wood Pallets / Crates
• Wood Cabinets Estimating Formula: (1600 sqft per gal /Dry Mil Thickness) x
Solids Content = Application Rate per gallon.
Packaging Surface Preparation
In general, coating performance and adhesion are directly
10-gallon kit 5 gallons (18.9 liters) Side-A and 5 proportional to surface preparation. Most failures in the
gallons (18.9 liters) Side-B performance of surface coatings can be attributed to poor
surface preparation. Polyurea coatings rely on the structural
strength of the substrate to which they are applied. All surfaces
100-gallon kit 50 gallons (189 liters) Side-A and 50 must be free of dust, dirt, oil, grease, rust, corrosion and other
gallons (189 liters) Side-B contaminants. When coating previously used substrates, it is
important to consider the possibility of substrate absorption,
which may affect the adhesion of the coating system,
Colors regardless of the surface preparation. Polycoat recognizes
Clear/Neutral. Custom colors are available upon request. Color the potential for unique substrates from one project to another.
Packs, when used, must be added to Side-B. The following information is for general reference. For project-
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Due to its aromatic composition, Polyeuro MH-751FR will tend specific questions, contact Polycoat.
to yellow or darken in color and will become flat after exposure NEW AND OLD CONCRETE
to UV light. Polyeuro MH-751FR may be topcoated within Refer to SSPC-SP13/NACE 6, or ICRI 03732: CSP 3-5. New
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twelve hours of application with an aliphatic polyurethane/ concrete must be cured for 28 days prior to product application.
polyurea coating for a colorfast finish. Surface must be clean, dry, sound and offer sufficient profile
Coverage for product adhesion. Remove all dust, dirt, oil, form release
Polyeuro MH-751FR may be applied at any rate to achieve agents, curing compounds, salts, efflorescence, laitance and
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desired thickness. Theoretical coverage for 1 mil thickness is other foreign matter by shotblasting and/or suitable chemical
one gallon per 1600 sqft. means, in accordance with local chemical regulations. Rinse
thoroughly to achieve a pH between 8.0 and 11.0. Allow to dry

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