It is a one component, permanently flexible, RTV (Room Temperature Vulcanizing) mildew-resistant silicone sealant that is the industry standard.

XtraBond®9500SL is a high performance, one component advanced polymer sealant that is self-leveling and permanently flexible. The product’s advanced chemistry delivers a fast-curing solution – across a wide range of temperatures – that is ideal for horizontal construction and industrial applications where self-leveling is critical to the finished product.