Flex-Seal VP is a self-adhesive membrane composed of tri-layer laminated polypropylene facer. The self adhesive under face is covered with a silicone release film.
- Better adhesive properties than competitive products
- UV exposure up to 180 days
- Self-sealing membrane ensuring continuous waterproofing
Flex-Seal VP is a vapour permeable air barrier, used in wall construction. It can also be used as a through wall flashing and as a transition membrane. Flex-Seal VP can be used on most substrates, such as masonry, wood, concrete and gypsum.
| Thickness | 0.6mm (24mil) | |
| Dimension |
| |
| Weight | 0.285 kg/m2 (0.058 lb/ft2) | |
| Selvedge Width | 50 mm (2 in) | |
| Surface | Tri-Layer Laminated Polypropylene | |
| Underface | Self-Adhesive, covered with a silicone release film |
| Method | Results | |
|---|---|---|
| Air Leakage Resistance @ 75 Pa | ASTM E2357 | < 0.005 L/s.m2 |
| Fire Resistance | Component of an assembly tested in conformity with NFPA 285 | Pass |
| Smoke Developed | ASTM E84 | Class A |
| Flame Spread | ASTM E84 | Class A |
| Hydrostatic Pressure for 5 hours | AATCC 127-08 | Pass |
| Nail Sealability | ASTM D1970 (Modified) | Pass |
| Maximum Permeance to Water Vapour Transmission (Membrane) | ASTM E96-B | 972 ng/Pa.s.m2 (17 Perms) |
| Air Leakage rate classification | CAN/ULC S742 | A1 |
| Air permeance of membrane | CAN/ULC S741 | < 0.001 L/s.m2 |
| Tensile Strength, MD/XD | ASTM D882 | 5.95 / 3.65 kN/m |
| Air Permeability @ 75 Pa | ASTM E2178 | 0.0025 L/s.m2 |
| Adhesion after elevation temperature exposure AAMA 711-05. Level 3, 7 days @ 80°C (176°F) | ASTM D3330 | 1200 N/m |
| Lap Joint Strength | ASTM D1876 | 300 N/m |
| Plywood Adhesion | ASTM D3330 | 350 N/m |
| Dimensional Stability at 85°C (185°F), MD/XD | ASTM D1204 | -0.45 / 0.11% |
| Tear Resistance, MD/XD | CAN/CGSB 51.32-M89 | No Cracking |
| Breaking Strength, MD/XD | ASTM D5034 | 400 N / 310 N |