Polyeuro MH-752

Polyeuro^® MH-752 is a fast setting, rapid curing, aromatic, two component, hybrid-polyurea/polyurethane spray designed to be applied over EPS, wood and many other surfaces.

Polyeuro MH-752 – Two Component Aromatic Hybrid Polyurethane/Polyurea Protective Coating

Polyeuro MH-752 is designed as a fast-setting, rapid-curing protective coating primarily for use over EPS foam, wood, and other substrates. It is ideal for providing a rigid, shell-like surface that resists impact and abrasion. It is well-suited for applications where quick turnaround and durable surface reinforcement are critical.

·       Side-A and Side-B (mixed in a 1:1 volume ratio)

·       Compatible Topcoat (optional for UV stability): Aliphatic polyurethane/polyurea coating, to be applied within 12 hours

·       Repair Material (for concrete, wood): Polycoat PC-260 or Polyprime 21 + sand

·       Primers: Required on metal (steel, aluminum, stainless), old concrete, or certain plastics. Specific primer recommendations must be confirmed with Polycoat.

·       Architectural shapes

·       Props and decorations

·       Dock flotation devices

·       Food processing areas

·       Wood crates and cabinets

·       Speaker enclosures

·       Steel coatings

·       Mix Ratio: 1A:1B by volume

·       Pot Life: 2–4 seconds @ 150°F (65.5°C), 50% RH

·       Tack-Free Time: 60–120 seconds (substrate and thickness dependent)

·       Recoat Window: 0–12 hours

·       Application Equipment: Plural-component heated high-pressure 1:1 spray (e.g., Graco Reactor)

·       Spray Temperature: >150°F (65.5°C); both components preconditioned to 80–90°F

·       Spray Pressure: Minimum 2000 psi

·       Substrate Temperature: At least 5°F above dew point

·       Viscosity: Side-A 90 ± 20 cps, Side-B 160 ± 20 cps

·       Coverage: 1 mil = 1 gal per 1600 ft²; build to desired thickness

·       Hardness: 75 ± 5 Shore D

·       Tensile Strength: 3700 psi

·       Elongation: 30%

·       Tear Strength: 450 pli

·       Service Temperature Range (Dry): -20°F to 250°F (-29°C to 121°C)

·       UV Stability: Aromatic formulation – not UV stable; yellows/dulls with exposure. Use aliphatic topcoat for UV resistance.

·       VOC: Zero VOC formulation

·       Environmental Limits:

o   Storage: 60–95°F (15–35°C); avoid freezing

o   Shelf Life: 12 months in sealed containers

·       Surface Prep:

o   Concrete must cure 28 days; prep to CSP 3–5 profile

o   Wood must be sanded and dry; knots filled

o   Steel: SSPC-SP10/NACE 2 blast profile (3–4 mils)

o   Do not use solvent primers on polystyrene

o   Adhesion tests recommended for aluminum, stainless, and cast iron

·       Limitations: Not to be diluted; requires desiccant fittings during use; professional use only

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