Handi-Foam® Extreme

Low Pressure One-Component Polyurethane Foam Sealant (OCF)
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Handi-Foam® Extreme low pressure, one-component, polyurethane foam sealant is a moisture cured, multi-purpose, polyurethane foam sealant formulated specifically for use in extreme temperatures and low humidity conditions. This will cure in outdoor temperatures as low as 0°F (-18°C). Handi-Foam Extreme is designed for sealing small cracks and voids, preventing air and moisture infiltration.

Handi-Foam Extreme is UL GREENGUARD Gold certified contributing to healthier indoor environments.

Handi-Foam Extreme is available in a gun foam option and can be dispensed using a Handi-Tool® Dispensing Unit.

R Value

4.70 at 1" thick


1.00 lb./ft3 (17.6 kg/m3)

Tack-Free Time approx. 5 minutes
Cuttable <1 hour
Fully Cured Time 12–24 hours
Cell Structure >70% CLOSED cell content
Fire Rating

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

Flame Spread: 25

Smoke Developed: 50


CCMC #13626-L

Shelf Life

15 months – Gun

Item Number
Dispensing Type

Handi-Foam Extreme Sealant

24 oz (680 g)
Gun Foam
4403 ft (1342 m)
* Based on 1/4" bead

  • Sealants
    • Residential
      • Air sealing attic
      • Sealing insulation board joints
      • Sealing electrical outlets
      • Sealing electrical openings
      • Sealing through stud penetrations
      • Sealing baseplates
      • Sealing plumbing penetrations
      • Sealing can lights
      • Sealing exterior gaps
    • Commercial & Industrial
      • Sealing building panels
    • Other
      • Repairing and sealing damaged cargo containers

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.