Jump to main content

OSI® Flameseal

Sealant to keep out fumes & smoke

OSI® Flameseal, Red, 10 oz



Color Make your selection Red

Packaging Size Make your selection 10 oz

Features and Benefits

Approved for both residential and commercial use, Flameseal, the non-flammable and non-hazardous latex formula is 1-, 2- and 3-hour fire resistant rated to seal out fumes, smoke and water. Ideal for filling gaps, cracks, joints and holes. 

Documents and Downloads

Related Articles

  • Choosing A Construction Sealant Technology

    It’s a great time to consider a new sealant formulation. Compare new and old technologies. 

  • Fillet Beads Keep Mother Nature Cornered

    The best installers know how to cover all the angles. Advice from OSI’s expert, Paul Majka. 

Missing anything?
Reach out about this product or any jobsite issues. We'll be in touch ASAP!