Heatlok Air Barrier System

Intumescent, Non-Toxic Fire Protective Coatings Work with Spray Foam Insulation

Intumescent Coatings are non-flammable, intumescent coatings similar to water-based latex paint, which have been approved for use as a coating on top of Demilec's various spray foam insulation products.

Intumescent Coatings primary function is to starve a fire, by keeping oxygen from reaching the spray foam insulation. Intumescent Coatings is a non-toxic, drain-safe, non-fuming coating designed to be used in walls, attics, and crawlspaces.

Demilec has completed NFPA 286 testing with TBX and has been approved as an interior finish system in accordance with the IRC and IBC, and omits the code's prescriptive thermal barrier requirement. In addition, our Intumescent Coatings products meet LEED, AQMD, and EPA VOC requirements.

Intumescent Coatings TBX has been approved for use as a thermal barrier substitute coating on top of:

  • Demilec APX
  • Sealection 500
  • Agribalance
  • Heatlok Soy

Intumescent Coatings IB4 has been approved for use as an intumescent coating on top of:

  • Sealection 500
  • Agribalance
  • "We enjoy the benefits of Demilec as a thermal barrier, air intrusion barrier and as a sound attenuation material. We plan on being a Demilec customer for many years to come."

    - Robert D. Massaro | CEO, Healthy Buildings, USA
  • "Demilec’s hands-on approach, trouble-shooting capabilities, and preventative maintenance process anchors their industry-leading tech service."

    - Eric DeMars | Lead Spray Foam Applicator, Custom Drywall, Inc.
  • "Your Heatlok Soy® 200 Plus is awesome. My guys and I tried at least five other brands, but Heatlok is the best. It is less sticky on the cap and does not clog as much as other brands."

    - Scott McLean | Operations Manager, Good Life Energy Savers, Danbury , CT
  • "We are extremely impressed with the exceptional performance of your product and would highly recommend it to anyone considering utilizing spray foam in their home."

    - Ruth O. | Slidell , LA
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