Boss 802 Clear Silicone Adhesive Pool Spa Sealant is specially formulated to hold up to hot tubs and swimming pools. Seals spa jets, skimmers, and fittings. Ideal for household and construction repair and maintenance. Unlike common silicone products, this advanced industrial formula resists spa and pool chemicals including chlorine and bromine without harm to acrylic surfaces. Safe for use with PVC components. You"ll find many other uses around the home, boat, workshop and RV. Product notes: Clear RTV silicone, acetoxy cure. Tensile: 300 PSI. Tack free in 15-20 minutes. Full cure: 24 hours. Mildew inhibitors.