No-Burn ThB Spray Seal™

No-Burn® ThB Spray Seal ™ is an intumescent coating for open and closed-cell spray foam use. It is classified as a Class II vapor retarder, thermal barrier, and ignition barrier all in one application. ThB Spray Seal features include exposure to UV and weather for up to 6 months. This spray seal is also compliant with the International Building Code and International Residential Code.