TMS Acoustical Caulk - 6 (29oz) Tubes

Seams to work as it should

It works! Dramatically reduced sound

Great product and easy to use. Did not include the nozzle for the tubes for some reason but I made it work.

I'm building a 600 sq ft sound proofed room. I just bought my 5th 6 pack of this item and have been using extensively to seal air leaks. The areas I've done to far are on the seams of plywood sheathing. I've applied on the interior side of the sheathing. There's house wrap on the outside of the sheathing. Long story short, I've just discovered most of the spots I've applied have cracked where the joint is. I can see through the crack as there's no siding on my house yet and the house wrap is translucent. I applied a thick bead and lightly smoothed it over with a spackling knife. But I left at least 1/8' thick. I'm now going to have to reapply with another product. Very frustrating and I'm out $300+ and several days of work.

This caulk is pretty good quality. It works way better than I expected its nice and thick. It takes about 24 hours to dry and the smell isn’t bad at all so you don’t have to leave when you’re done which is very helpful.