HandiFoam® Fireblock West

Low-Pressure One-Component Polyurethane Foam Sealant (OCF)
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HandiFoam® Fireblock West low-pressure, one-component polyurethane foam sealant is a moisture cured sealant designed to seal, fill, bond and stop air infiltration in areas with high temperature and low humidity climates. HandiFoam Fireblock West has a recognizable orange color allowing inspectors to easily identify the use of an approved fireblock product for Type V residential construction. Due to its expansion characteristics, HandiFoam Fireblock West is more effective than many traditional fireblocking materials for the blocking of flames and smoke in concealed penetrations, preventing flame spread from room to room and floor to floor.

HandiFoam Fireblock West is UL GREENGUARD Gold certified contributing to healthier indoor environments and complies with AAMA Doc. 812 for a low-pressure build that will not bow or distort windows and doors. HandiFoam Fireblock West is available in gun foam and can be dispensed using a Handi-Tool® Dispensing Unit.

R Value

4.2 at 1" thick


1.40 lb./ft3 (22.4 kg/m3)

Tack-Free Time approx. 5 minutes
Cuttable <1 hour
Fully Cured Time 12–24 hours
Cell Structure 87% OPEN cell content
Fire Rating

ASTM E84/UL 723 Caulking & Sealant @ ¾" bead

Flame Spread: 25

Smoke Developed: 50


UL ER #13919-01
AAMA 812 Compliant

Shelf Life

15 months – Gun

Item Number
Dispensing Type

HandiFoam® Fireblock West Sealant

24 oz (680 g)
Gun Foam
3142 ft (958 m)
  • Sealants
    • Residential
      • Air sealing attic
      • Sealing electrical outlets
      • Sealing electrical openings
      • Sealing through stud penetrations
      • Sealing baseplates
      • Sealing plumbing penetrations
      • Sealing windows and doors
      • Type V residential fire blocking

Use our Yield Calculator to determine how much low pressure polyurethane foam you need to complete your next project.

*Yields are based on theoretical calculations, for comparison purposes, and will vary depending on ambient conditions and particular application. Other two-component foam product yields are shown on the specific Technical Data Sheet. These examples are representative of other products of similar size.

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