GE Advanced Specialty Silicone 2 2816709 Concrete Silicone, Light Gray, 24 hr Curing, 10.1 fl-oz Cartridge (Pack of 12)

Concrete Silicone 2 sealant is a high-performance, 100% silicone and 100% waterproof sealant ideal for concrete, mortar and stone projects. This 30 min rain-ready formula is light gray in color and offers permanent flexibility and excellent durability with 10 year mold-free product protection to help resist mold and mildew growth. Backed by a lifetime assurance.