Polyurethane Sealant
Adhesives Sealants
Flexible, paintable sealant for exterior joints that move. Superior adhesion to concrete, masonry, and wood. Excellent UV and weather resistance.
Fast Facts
- What Is It?
- Moisture-curing polyurethane sealant for exterior construction joints.
- Common Uses
- Window/door perimeters, concrete joints, siding transitions, flashing terminations.
- Cost Range
- $5–$10 per 10 oz cartridge.
- Durability
- 25+ year service life; remains flexible through thermal cycling.
Specifications
| Property | Value |
|---|---|
| Movement Capability | ±25% joint width |
| Cure Time | 24–72 hours (moisture-dependent) |
| Paintable | Yes, after 48-hour cure |
Polyurethane sealants are the professional choice for exterior joints subject to movement. They bond to virtually any substrate and remain flexible for decades.
Comparisons Featuring This Material
Also Consider
Silicone Caulk
Permanently flexible, 100% waterproof sealant. Resists mold and mildew. Not paintable. Best for wet areas and non-porous surfaces.
Construction Adhesive
High-strength bonding agent in cartridge form for wood, concrete, drywall, and foam board. Supplements or replaces mechanical fasteners in structural and non-structural applications.