Car Builders6mm Insul-Layer is a light weight thermal acoustic barrier. This durable, closed cell synthetic rubber is effective as a decoupling layer from heat and to isolate noise and vibrations. Our crush and tear resistant material is versatile with a peel and stick backing. It will not absorb water and is one of the most effective single layer materials to insulate against heat. Ideal for lining vehicle roofs, door trims, fender cavities, van interiors, campers, trucks and various equipment. Commonly used inside vans and campers as a cost effective solution to thermally insulate when touring.