Thermo-Gel Homewoner Fire Protection Kit Thermo-Gel is a US Forest Service approved gel concentrate that when mixed with watertransforms into a fire preventing and heat absorbing gel. Thermo-Gel adheres to any surface, including glass, metal siding, roof overhangs, and trees and scrubs. Thermo-Gel is environmentally safe and non-toxic. Thermo-Gel is widely used by fire professionals SAVE YOUR HOME TODAY