Keep in mind, it doesn’t have the elasticity of crack sealant rubber. What is it Used for? Ryan explains in the interview, that mastic has many uses. Great for patching over “spider-cracks ...
The current approach to sealing ductwork uses aluminum tape or paint on mastic, a type of resin. SnapDuct uses a connector that joins both ductwork ends with a clip or latch system and an internal ...
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