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Perma-Chink Log Home Sealant - Stretching Value Around Log Homes

When Perma-Chink arrived on the log home scene over forty years ago, it revolutionized the industry in the best way possible. We developed a log home sealant that replaced and outperformed traditional mortar chinking.

Perma-Chink Log Home Sealant stretches with log movement and is vastly more flexible than the cement-based chinking of old. When log home builders and owners want the best log home chinking, what they really want is the best log home sealant: Perma-Chink.

Advancing the log home chinking industry further, Perma-Chink pushed the envelope by providing a sealant that offers more coverage compared to others on the market. A 5-gallon pail of Perma-Chink covers almost 400 linear feet of log gaps, nearly double of the closest competitor.

Some log home sealant brands offer comparable coverage, but at the expense of applied thickness. A thick layer of sealant usually induces slumping, where the sealant isn’t designed to withstand its weight. Too thin of sealant will be tested by environmental exposure and log movement. Both create slumping and blistering catastrophes on log homes.

Log Home Sealant

Linear Distance
Coverage of 1” Gap

Application Thickness

MSRP of 5-gallon Pail
(as of 12/2022)


385 linear feet



Log Jam

195 linear feet



Triple Stretch Chinking

385 linear feet

1/4” Maximum


By the numbers, Perma-Chink Log Home Sealant is $0.77 per linear feet. Triple Stretch Chinking is $0.76 per linear feet at a very thin application thickness, and Log Jam is $1.58 per linear feet at a slightly thicker application thickness.  

When you compare the amount of coverage at a dependable application thickness, Perma-Chink is the best log home sealant on the market at a cost per linear foot. The advantage of using Perma-Chink is in its design, as Perma-Chink is a thixotropic sealant. It stays exactly where the applicator leaves it. 

*Thixotropic: Under shear, the compound decreases in viscosity. When pumped or squeeze-applied (shear) it flows as applied, and when the shear goes away the viscosity increases.

In addition, Perma-Chink is part of our whole-home system, designed to work in concert with our finishes and topcoats to make a beautiful log home.

Perma-Chink Log Home Sealant is also backed by a 10-year Limited Warranty and a dedicated staff of Wood Care Experts that will help you preserve and protect your log home for generations. If you have any questions, call us at 1-800-548-3554 and we’ll be happy to help.

Last modified on Monday, 06 March 2023 22:09