Old mortar cracks and crumbles out of the joints, allowing in wind, bugs, dust, rain and pollen. That is why Sashco created Log Jam, the industry standard for synthetic chinking. Its texture recreates that old-time mortar look while sealing your rustic cabin from vermin and wind alike. It stretches and will not let go when your logs move. With Log Jam, you can keep the cozy feel and rustic look without compromise.
Ultra flexible and elastic - will not crack or pull away
Go-to product for log home manufacturers throughout the US - trusted product
Water-based for easy application and clean-up
Freeze-thaw stable: OK to leave in your truck overnight