What is Log Jam Synthetic Chinking?
Log Jam® is the industry standard in synthetic chinking. Unlike old-time mortar, Log Jam Synthetic Chinking holds tough year after year. Its superior elasticity means that it moves with your logs without cracking. Log Jam seals your log cabin from vermin, pollen, dust, rain and wind alike. You get the rustic look of old-time mortar without compromising modern-day comfort and energy efficiency.

-Get the Rustic Look: The textured Log Jam formula is easy to apply for Professionals and DIYers.
-Keeps the Weather Where it Belongs: Log Jam moves with your logs to create a permanently waterproof and weatherproof seal.
-Avoid Repeated Repairs: Log Jam stays soft and elastic over time for a long-lasting seal.
-Easy to clean up: Log Jam is easy to clean-up with soap and water.