OSI GreenSeries FlameSeal Fire/Smoke/Draft Stop Sealant, 10.2 Oz

★★★★★ 4.4 18 reviews

US$9.71
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US$9.71
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Product details

Management number 244285304 Release Date 2026/07/20 List Price US$9.71 Model Number 244285304
Category

OSI GreenSeries FlameSeal Fire, Smoke & Draft Stop Sealant OSI GreenSeries FlameSeal Fire, Smoke and Draft Stop Sealant is a non-flammable latex-based sealant designed for use in both residential and commercial fire-stopping applications. Developed to seal service penetrations and joints in fire separations and firewalls, it prevents the passage of flame, smoke and fumes under actual fire conditions. Meets LEED requirements.

Highlights:

  • Size: 10.2 Oz
  • Color: Brick Red
  • Ultra-low VOC formulation
  • Seals out fumes, smoke and water
  • 1, 2 and 3 hour fire-resistance rated
  • Fills gaps, cracks and holes
  • Used to seal service penetrations and joints in fire separations and firewalls
  • Stops flame, smoke, and fumes under actual fire conditions
  • Easy to apply and cleanup, contains NO asbestos, paintable after cure
  • Nonflammable, provides a fireproof acoustic seal
  • Greenguard approved, meets LEED requirements

Recommended For:

OSI GreenSeries FlameSeal Fire, Smoke & Draft Stop Sealant is recommended for use in penetrations in fire rated gypsum wallboard, concrete, concrete block and wood partition floor and wall assemblies. Primary sealing applications include CPVC plastic, copper, steel cast iron and other common building materials. It adheres to all these surfaces plus wood and drywall. This product works well for sealing around sprinkler lines/heads up to 4" (100mm), EMT, conduit and concrete construction joints. It is compatible with ABS, PVC, CPVC, PP, PE and PB plastic material, as well as all electrical wiring and telecommunication cables. All other substrates should be tested for compatibility before use.

Not Recommended For:

Anything other than listed Systems Designs printed in the Underwriter Laboratories and Warnock Hersey fire resistance directories.


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18 ratings | 7 reviews
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