Formulated with the highest quality ingredients including a silicone additive for greater adhesion and weatherability, AC-20 is completely compatible with premium-grade latex and oil paints and will not stain adjacent surfaces. AC-20 has superb color stability and resistance to ultraviolet rays, ozone and airborne contaminants. It is mildew resistant and has United States Department of Agriculture acceptance for use in meat and poultry processing plants. In addition to the substrates listed above, AC-20 is compatible with polystyrene, polyurethane, cork, foamed and fibrous glass and gypsum board.
AC-20®’s elastomeric properties make it an excellent sealant for caulking interior concrete joints, hollow core ceiling and floor planks, window and door frames, vinyl, aluminum, steel and plywood siding, sheetrock, baseboards and bathroom and kitchen fixtures. It may be used to grout marble and ceramic tile, repair mortar joints, and, under controlled conditions, to bed insulated glass units and storm windows.
• The sealant must be protected from water for 24 hours after application; do not caulk outdoors when rain is imminent
• Windows must be properly weeped since entrapped water could cause reversion. Sealant must be given additional time to fully cure before windows are installed because of the closed-in conditions
• Installed sealant shall not be subjected to repeated exposure of aggressive cleaning or disinfecting compounds