The Black Mamba Silicone 260ml Marine Sealant is an easy-to-apply silicone sealant that provides unbeatable performance and protection against the elements. This heavy-duty sealant is designed for use in marine and coastal environments, and provides a permanently waterproof seal that won't crack or shrink over time. Its low-toxicity formula is suitable for use on both hard and soft surfaces. Enjoy unparalleled protection and performance with the Black Mamba Silicone 260ml Marine Sealant.