10oz Bright White Pro Flex RV Sealant can be exposed to any weather condition immediately after application and will stay elastic and stops leaks quickly, getting you back on the road. It has excellent expansion and contraction properties to withstand the hoint movement and temperature changes that are a fact of life with RV's. It will bond to damp, slightly oily or even frozen surfaces and may be applied over itself. It is paintable and resistant to dirt pick-up. Will adhere to aluminum, glass, Kynar, steel, wood, fiberglass and vinyl, but should not be used on traffic-bearing surfaces, extruded polystyrene insulation sheathing (Styrofoam, etc.) or EPDM. Also should not be used on acrylic skylight glazing surfaces or areas where food is processed or stored. 25 year life expectancy. Bright White in color. 10oz tube.