Heat Wave Pro is a high R-value lightweight multi layer material. The jute material is made from natural cotton denim and is treated for fire, mold, and mildew resistance. The reinforced foil fabric is laminated to both sides to increase radiant reflection and add durability. Some of the many uses for this thermal-acoustic barrier include; reducing heat and noise generated from engines, exhaust and transmissions. Apply on top of Damplifier or Damplifier Pro to increase thermal insulation, and reduce both structure borne noise and air-borne noise. Heat Wave Pro has a Class A fire rating and meets fire resistance (FMVSS 302).