Designed to fill and seal, fill, bond and stop air infiltration. More efficient than traditional fireblock materials at blocking smoke and toxic gases in concealed penetrations in Type V residential construction.

Built for the pros, the HandiFoam FireBlock Straw Foam Sealant is an effective sealant for contractors and DIYers alike. Seal small cracks and larger gaps alike with less waste and a cleaner finish. Use with one of HandiFoam's Straw Foam Applicators to effectively seal windows, doors, attics, joints and more – creating a tight barrier against noise, moisture and air infiltration. Ideal for sealing around electrical outlets and openings, stud or plumbing penetrations, baseplates, windows and doors. Designed to cure in high temperatures and low humidity conditions. Tested in accordance with AAMA Verified Components List and will help to prevent bowing of windows and doors. HandiFoam Black is available in a variety of sizes and can be dispensed with a straw applicator or a Handi-Tool Dispensing Unit. HandiFoam is an industry-leading brand that delivers low-pressure one- and two-component polyurethane foam sealants, adhesives, pour-in-place and spray foams. HandiFoam is built on the foundation of innovations that improve. We are committed to developing products, exclusive technologies that improve the overall product performance, safety, and experience for our customers.