OSI, 21.1 OZ, Quad Foam Window & Door Installation Foam, Single Component Polyurethane, Minimal Expansion & Low Pressure, Seals Gaps, Cracks, Holes & Voids Around Windows & Doors, Closed Cell Structure Provides An R Factor Of 5 Per Inch, Adheres To Wood, Concrete & Drywall, Compatible With Asphalt & Butyl Flexible Flashing, Specifically Designed For Use With The OSI Quad Window & Door System.
- Low Foam Pressure/Low Expansion - will not warp or deform windows and doors
- Quick Setting Formulation - can be cut or trimmed in less than 1 hour
- Insulation Value of R5/inch
- Closed Cell Structure does not absorb moisture
- Flexible/Will not crack or dry out
