pinterest-icon YouTube Facebook Twitter Instagram

Check Mate 2

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.

Check Mate Colors

Check Mate 2 Available Sizes

Check Mate 2 Available Sizes

Check Mate 2 comes in handy 11oz tubes that fit standard 11oz ratcheting guns or powered guns. For large restoration projects Check Mate 2 is available by the case, and we also offer a small project kit that contains two 11oz tubes and 50 feet of 3/8" backer rod.

Check Mate 2 Product Information

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.


  • Waterproof
  • Remains Flexible to Allow For Log Movement
  • For Exterior and Interior

Resource Links

Sealants FAQ

Depends on the style of your log home. Read how to choose the right sealant here.

Sealants Reviews