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 PenaShield before sealing with Check Mate 2.
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.
Product Information
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 dry
- Backing material
- Free of mold and mildew
Shelf Life
1 Year
Frequency
As Needed
Special Instructions
- Apply to upper facing checks 1/4″ to 1″ wide
- Apply to approximately 3/8″ thickness
- Avoid application in direct sunlight
Drying Time
- Dries to the touch in 1 hour
- Cures in 2-3 days depending on temperature and humidity
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.
What’s the right log home sealant?
Depends on the style of your log home. Read how to choose the right sealant here.
What goes on first- finish or sealants?
If you’re curious on which order to apply finishes and sealants, it mainly comes down to how you want your log home to look. Read more here.
How do I fix the cracks in logs?
Cracks in logs are called ‘checks’ and should be evaluated and likely sealed, especially if they face upward, where they can collect moisture and produce rot. We have a handy how-to article about sealing checks here.
