For use on: Steel, wood, vinyl, sheet metal, and other common substrates. Stops leaks fastFibered for strengthWithstands intermittent foot trafficWithstands water contact quickly after application to stop leaksOne-step application; no primer requiredApplies in adverse temperature ranges including damp and icy conditionsCured sealant is mildew and UV resistantPaintableRV can be moved and exposed to weather right after application; roadworthy in 1 hour Do not use on polystyrene insulation sheathing, TPO, or EPDM. Do not use in areas where food is processed or stored. Do not use as a complete surface coating or in continuous underwater applications. Product is for exterior use only due to odor emitted during cure. Product contains solvents which may craze some plastic materials. Do not use for potable water applications. This product may not be sold in the state of California.