Tremco PUMA WC is a two-part, chemical-curing, polyurethane-methacrylate (PUMA) wear coat. Tremco PUMA WC is applied after Tremco PUMA BC has cured. The wear coat is loaded with aggregate to give the system excellent impact, abrasion and chemical resistance.

Tremco PUMA WC is primarily used as a wear coat in traffic-bearing coating systems, particularly for vehicular traffic applications. It provides a high-performance protective layer designed to withstand mechanical stress and chemical exposure.

Tremco PUMA WC is used in conjunction with other components in the Tremco Vulkem EWS and TREMproof PUMA systems. It is specifically applied after the Tremco PUMA BC (Base Coat) has cured. The system typically includes:

• Primer (not listed in this sheet, but implied for system use)
• Tremco PUMA BC – Base Coat
• Tremco PUMA WC – Wear Coat (with aggregate)

The material is intended for use in high-durability settings, including vehicular traffic decks where impact, abrasion, and chemical resistance are critical.

• Packaging: Supplied in 6-gallon pails.
• Application Environment: Should be installed with adequate ventilation and only on dry, uncontaminated surfaces.
• Installation Temperature and Humidity: Not explicitly specified, but conditions should align with typical polyurethane-methacrylate installation standards (generally 40–90°F and <85% RH).
• Drying Time: 1 hour at 75°F and 50% RH for a 65 mil wet film thickness.

Performance Characteristics (from Typical Physical Properties on page 2):

• VOC Content: 0 g/L (compliant with strict environmental regulations)
• Solids by Weight: 100%
• Tensile Strength: 1550 psi
• Elongation: 250% (ASTM D638), Minimum 30% (ASTM D5147)
• Hardness: Shore D – 45, Shore A – 96
• Tearing Resistance: 148 lbf
• Puncture Resistance: >56 lbs
• Water Absorption: <0.1%
• Water Vapor Transmission: 0.03 perms
• Adhesion-in-Peel: 35 lbs
• Flammability Properties: Self-ignition at 840 °F; smoke density 28.7%, burn rate 1.7 in/min.

• Must be used as part of the full PUMA system with other compatible Tremco components.
• No direct mention of UV resistance or stability – likely intended for protected or covered applications.
• Thickness during application is 65 mil wet film; exact coverage per gallon is not specified, but typical 100% solids coatings at 65 mils cover ~25 ft²/gal.
• Refer to site-specific application instructions and consult with Tremco representatives for detailed field guidance.