York Seal 40-Mil Self-Adhering Flashing – 75' Rolls
Ships in 3–5 business days
York Seal is a proprietary, self-adhering composite membrane that combines high strength, low-temperature adhesion, and high-temperature stability to create an exceptional barrier against air and moisture transmission. Featuring a tough 5 mil (0.1mm) high-density polyethylene film, York Seal provides a resilient defense against physical damage. Its proprietary modified asphalt delivers the waterproofing effectiveness of traditional modified bitumen products while maintaining excellent low-temperature adhesion.
FEATURES
- Waterproof and impermeable to moisture
- Superior adhesion for a fully bonded seal
- Cross-laminated polyethylene facer for added durability
- Low-temperature adhesion and flexibility
- Impermeable to air, moisture vapor, and water
BENEFITS
- Prevents vapor and air transmission through:
- Masonry curtain walls
- Construction joints
- Fittings around doors and windows
COMPATIBLE WITH
- Plywood
- Lumber
- Precast concrete
- Metal
- Exterior gypsum
- Concrete block
SIZES AND PRODUCT PACKAGING
This product is sold in box quantities only.
| Width | Length | Rolls/Box | LF/Box |
| 12" | 75' | 3 | 225' |
| 18" | 75' | 2 | 150' |
| 24" | 75' | 1 | 75' |
RESOURCES