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 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 Application

Applying Check Mate 2 is a simple process that requires some basic equipment to seal log cracks. Check out our video to see how it's done.

Check Mate 2 Colour Wet vs. Dry

When first applying Check Mate 2, the color may seem lighter than the color you are expecting. Don't worry, Check Mate 2 will dry and cure darker than it looks when it comes out of the tube.
Read our Tech Tip about it here.

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

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

Sealing Checks In Logs & Log Siding

For cracks in your logs, called checks, we recommend sealing upward-facing checks that are wider than 1/4" because they collect water, ultimately leading to rot. They also offer a home for bugs. Read our Tech Tip on how to seal checks here.