Flame Seal TBTM (Thermal Barrier Coating)


Flame Seal TB™ is an intumescent coating which provides an alternative 15-minute thermal barrier for Spray Polyurethane Foam (SPF). Flame Seal TB™ is fully compliant with all ICC-ES standards. It comes in 5 colors; white, three shades of gray, and black; giving options to design professionals. White is the standard color, while the others typically require a two-week lead time. Flame Seal TB™ requires no primer to adhere to SPF; representing lower cost and less application time. Flame Seal TB™ is designed for ease of application with any commercial grade airless spray units for the duration of its shelf life. There is no need for high-powered gas equipment or water addition due to high viscosity. This assures the fire performance is not compromised by dilution, which invalidates certifications.

Testing Matrix

Approved Spray Polyurethan Foam Foam Type Wet Mills
BASF Comfort Closed Cell 25
BASF Enertite Open Cell 30
BASF Spraytite Closed Cell 25
BASF Walltite Closed Cell 25
Bayer BAYSEAL Closed Cell 18
Covestro ECOBAY Closed Cell 18
Gaco 183m Closed Cell 20
Icynene ProSeal Closed Cell 20
Quadrant Quadfoam 2.0 Closed Cell 20
Premium Foamsulate 210 Closed Cell 24
Dow Styrofoam Closed Cell 25
Certainteed Certa Spray Closed Cell 25

*Please contact FSP to receive copies of test reports.


Application Instructions

To receive a copy of Flame Seal’s Thermal Barrier Application Instruction Manuel please fill out the training form and a Flame Seal representative will assist you.



  • Two Part Coating
  • Safe Handling
  • Multiple Applications
  • Proprietary Ingredients


  • Non-Toxic
  • Multi-Colored
  • Non-staining
  • Inert
  • Non-conductive
  • Neutral Charge
  • No PDBE’s
  • Decrease Fire and Smoke Evolution


  • Substrate Converts to Carbon Char
  • No Flame Propagation
  • Simple Application
  • Non-toxic
  • No Halogen Donor Required

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