Waterproof Sealant & Heat Insulation: Widely use on Industry Factory Tin Roof to reduce quantity of heat. Instantly stop leaking, never worry about rainy day, practical repair putty stays strong adhesion on various surface.Durable Material: Butyl seal tape is made of butyl rubber by special processing, non - toxic, no contraction, anti-aging, safe and odorless. it can works well in preventing shakes, sealing, waterproofing, fire retardant and insulation.Widly Application: Suitable for many occassions, used for repair home leaks, cracks in roofs, leaks in window sills, water seepage, rv exterior, underhouse,tunnel and subway. It is also a good vintage camper supplies to help you seal camper creak.Long Lifetime & Easy To Install: Butyl tape h.