Air and waterproof barrier
Cat 5 is a primary air barrier designed for use over above-grade structural surfaces prepared with Joint & Seam Filler and FastFlash. Cat 5 produces a highly durable, seamless, elastomeric weatherproofing membrane on exterior sheathing, CMU backup walls, and precast concrete. Proven to prevent water and air penetration of the building envelope in conditions ranging from everyday to the 155-mph winds of a Category 5 hurricane.
FEATURES
- Solvent-free. Isocyanate-free. Phthalate-free. Complies with all VOC regulations.
- Bonds to most common building materials without priming.
- Bonds and cures in wet weather and on damp substrates.
- Silane functional polymer provides superior long-term adhesion, crack bridging and weathering characteristics.
TECHNICAL DATA
- SHELF LIFE1 year in tightly sealed, unopened container
- VOC CONTENT<30 g/L
- FORMViscous liquid, mild odor light brown color
- PHNot-applicable
- COVERAGE RATEExterior Gypsum Board, OSB and Plywood: 50–100 sq.ft. per gallon, CMU: 50–80 sq.ft. per gallon
- FREEZE POINTNot-applicable
- FLASH POINT>200° F (>93° C)
- TOTAL SOLIDS99%
- WT/GAL11.6 lbs
- AVAILABLE SIZES5-gallon
OVERVIEW
Cat 5 is a single-component, silyl-terminated polymer (STP) that is roller-applied to produce a highly durable, seamless, elastomeric weatherproofing membrane on exterior sheathing, CMU back-up walls, and pre-cast concrete. Cat 5 is proven to prevent water and air penetration of the building envelope in conditions ranging from everyday weather to the drenching rains and 155-mph winds of a Category 5 hurricane.
Use Cat 5 as the primary air barrier over above-grade structural surfaces prepared with Joint & Seam Filler and FastFlash. Solvent-free. Isocyanate-free. Phthalate-free. Complies with all VOC regulations.