Our marine-grade waterproof tape can be used to repair just about anything, it adheres to most surfaces, even when wet and is perfect for repairs that will be submerged or exposed to water such as plumbing, inflatables, hoses, hvacs, windows and so much more! The extra wide 4" size makes it great for larger repairs and can be cut down for smaller ones, our industrial-strength waterproof tape creates a permanent, ultra-durable and flexible water-tight seal that holds under water and stands up to the elements. We proudly stand behind the quality of all our products. We are a family owned American business committed to making premium quality products and exceptional customer support.