LOCTITE® PL Roof & Flash is a premium-grade polyurethane-based sealant designed for roofing and flashing applications, delivering superior weatherproofing, flexibility, and adhesion to common roofing materials.
Professional roof and flashing sealant
Formulated for sealing roof joints, flashing, and penetrations
Excellent adhesion to asphalt shingles, metal, masonry, and wood
Remains flexible to accommodate expansion and contraction
Provides long-term waterproofing and weather resistance
UV-resistant and suitable for outdoor exposure
Ideal for sealing roof edges, vents, skylights, and gutters
Paintable after curing for a seamless finish
Meets ASTM C920 performance standards
LOCTITE® PL Roof & Flash is a professional-grade polyurethane sealant specifically developed for roofing and flashing applications. It provides long-lasting waterproof seals, superior flexibility, and reliable adhesion to asphalt shingles, wood, masonry, and metal surfaces.
| Property | Typical Value | Test Method |
|---|---|---|
| Base | Polyurethane | — |
| Color | Black | — |
| Application Temperature | 40°F to 100°F (4°C to 38°C) | — |
| Service Temperature | -40°F to 160°F (-40°C to 71°C) | — |
| Tack-Free Time | ~2–4 hours | — |
| Full Cure | ~7 days (varies with joint depth and humidity) | — |
| Movement Capability | ±25% | ASTM C920 |
| Paintable | Yes (after full cure) | — |
| UV Resistance | Excellent | — |
| Water Resistance | Waterproof when cured | — |