Teak Decking's TDS SIS 440 Systems is a caulking paste that does NOT require a primer, which once exposed to air moisture reacts to form a strong, flexible, solid rubbery compound. Teak Caulking does not sag or shrink upon curing. Once the curing process is complete, it has excellent temperature stability and high chemical resistance. Due to its neutral curing process, it is not corrosive to any of the application surfaces.
This product has been evaluated by independent agents and qualified with the highest score for its teak deck installation and maintenance applications.