Log Check Sealant Check Mate 2 is an outstanding water resistant sealant that prevents water and air infiltration through pronounced cracks (called checks) in logs, timbers and wood siding. Caulking is an obvious solution to this problem, but caulking does not work because of limits in adhesion and weatherability. It is especially important to seal upward facing checks in any location where they may accumulate water. If these checks are left unsealed, they become sites where rot may begin to take hold. If you have old checks where rot is a risk, be sure to apply Shell-Guard before sealing with Check Mate 2. Product Information Check Mate 2 is specifically formulated to meet the particular requirements for sealing checks that appear in logs and log siding. Checks and splits in logs present a different set of dynamics than those typically addressed by a caulk, and therefore need a specialized sealant like Check Mate 2. Features Waterproof Remains Flexible to Allow For Log Movement For Exterior and Interior Resource Links SDS (External website) Check Mate 2 Clear SDS Product Label Sealants Application Guide Application Temperature 40° to 90°F Application Methods Ratchet caulking gun Surface Preparation Clean and dryBacking materialFree of mold and mildew Shelf Life 1 Year Frequency As needed Special Instructions Apply to upper facing checks 1/4" to 1" wideApply to approximately 3/8" thicknessAvoid application in direct sunlight Drying Time Dries to the touch in 1 hourCures in 2-3 days depending on temperature and humidity
