Akfix Fire Block Spray Foam 12x12 oz orange (fire retardant) for gap filling
Fire-resistant polyurethane expanding foam for gap filling, insulation, and sealing around windows, doors, and fixtures. Customers note strong adhesion on old surfaces but mixed opinions on sprayability and expansion
Highlights
- fire-resistant expansion foam
- strong adhesion to old surfaces
- paintable after cure
Pros
- high expansion for wide gap filling
- fire-resistant formula for safety
- paintable after curing
- adheres to various surfaces
Cons
- mixed feedback on ease of application
- some report difficult sprayability
- inconsistent expansion and cleanup
Best For
Features
- Fire-resistant polyurethane foam slows flame spread to enhance safety
- High expansion formula fills large gaps and cavities for wide gap sealing
- Covers large areas with minimal product for door, window frames, and penetrations
- Bonds to wood, concrete, and metal for versatile surface adhesion
