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PolyBrite® 73 Flashing Compound
Brand: Polyglass, IncPolyBrite 73 is a premium-grade white elastomeric mastic with StretchSpan Technology™ (SST). This technology makes this product extremely pliable. PolyBrite 73 cures to form a seamless flexible, waterproof membrane that will expand and contract with the movement of the roof surface.
This product is designed for use at various flashing and detail conditions when installing Polyglass’ elastomeric roof coating systems. PolyBrite 73 offers excellent adhesion, flexibility, high tensile strength and resistance to ultra violet degradation.
Features- StretchSpan Technology™ (SST) makes it extremely pliable
- Flexible – will expand and contract with movement of roof surfaces
- Strength – provides a permanent waterproof seal at flashing details and fastener heads
- Versatile – suitable for most surfaces and various roofing types
- Stable – no migration of plasticizers and oils that inhibit adhesion and product performance
Specifications
Brand
Packaging
- 1.8 Gallon (6.8 Liters) Pail
- 4.75 Gallon (17.9 Liters) Pail
Accelerated Weathering at 1,000 Hours (Pass/Fail)
- Pass, ASTM D4798
Solar Reflectance
- 80 %, ASTM C1549
Fungi Resistance (Pass/Fail)
- Pass, ASTM G21
Elongation
- 250 % ± 50 %, ASTM D2370
Tensile Strength
- 300 ± 50 psi, ASTM D2370
Flexibility at 15° F Mandrel (Pass/Fail)
- Pass, ASTM D522B
Viscosity
- > 125,000 cP, Brookfield© 4d/5 RPM/77° F
Weight
- 10.3 ± 0.5 lb/gal, ASTM D2939
Solids Weight
- 64 % ± 2 %, ASTM D1644
Solids Volume
- 52 % ± 2 %, ASTM D2697
VOC
- < 50 gm/L, Calculated
Flash Point
- > 212° F, PMCC
- Suitable for use as a mastic grade sealant for flashings and miscellaneous details on various roof surfaces and substrates.
- Can be applied over various conventional BUR, modified bitumen, metal, wood, spray polyurethane foam and concrete materials.
- Recommended for seal joints, seams, through-roof penetrations and fastener heads.