Hurricane CAT 5 is the ultimate in 2-part sealers made with a new generation urethane providing ultra-durable surface protection. Its Armor Bond joint stabilization hardens joint sand to prevent sand washout. It provides the deepest color enhancement with high-gloss finish using T3 True Tone Technology. It has an added antifungal that protects the sealer film from mold, moss and algae. Hurricane CAT 5 is a super concentrated water based film forming sealer that comes as a kit and requires mixing and dilution before use. Recommended for professional use only.