This sealant tape is made of premium butyl material, offering excellent weatherproof and UV-resistant properties. With high viscosity and flexibility, it can resist UV rays, moisture, vapor, corrosive chemicals, and various leaks, protecting your RV in extreme weather conditions.No additional adhesive or filler is required. Whether applied to flat surfaces, curves, or corners, simply peel off and stick to complete repairs independently. The tape provides a permanent fix with a single application, not a temporary solution, and is tested to withstand years of outdoor use. Suitable for a wide range of sealing scenarios, it covers RVs, RV roofs, metal, rubber, wood, vinyl, glass, motorhomes, trailers, 5th wheels, vans, buses, and more. It adapts to various surface materials, including EPDM, PVC, Hypalon, TPO, wood, and fiberglass.The tape operates stably within a broad temperature range of -40°F to 150°F. The product surface may appear uneven, which does not affect performance. Note that it should not be used with mineral spirits or waterproof materials containing benzene, methanol, ethylene, or silicone.