12-Pack of 28 oz OSI SC-175 White OSI Draft and Acoustical Sound Sealant

Thanks

The product arrived, undamaged and ready to use. It is difficult to extract. But the biggest problem is the caulk is supposed to be permanently flexible after drying. However, after a day or two, the product SOMETIMES tries rock hard has no give or flexibility to it at all, but sometimes it’s flexible. I suspect that you need to lay a heavy bead to get the desired effect. Anyways I’m sure it works well for sealing air gaps and I’m sure it helps prevent sound flowing from gaps. For the price and the quality I would say this is great value for folks who need the 80% solution at half the price. I suspect the sound engineer might not like the quality but form my point of view it’s good.One of the other reviews mentioned that it works really well for a day or so but it reduces its benefits after that, I suspect because the product takes 1 to 2 days to dry it was flexible and absorbed sound and then when it hardened it stoped absorbing sound as well.Not sure what the variable that causes the hard drying but maybe with more extermination I’ll figure it out

Had a lot of pockets to fill in my vocal booth. This was perfect

Dried hardNot what I was looking for.

Used two tubes for a remodel and worked well.

First of all, yes you should follow what everyone is saying on here, you will need a larger caulk gun. This caulk is really thick which is probably why they put it in a larger container. This product also was shipped in good condition, I had no issues with the packaging.This caulk is somewhat difficult to apply since not only it's a thick caulk but also handling a larger caulk gun at the same time, but it's definitely worth the effort.There is a difference in noise. I live in a townhome where the bedroom faces towards the street so not only my neighbors are really close to me, but they are also really really loud. This caulk helped fill the gaps of my windows and muffle the noise. I feel like it worked at first but I don’t know if it’s because it settled in or weather change but I feel like it’s not as effective as when I put it on.If you have a noise problem, this caulk will help but not completely eliminate the problem.

I bought several different acoustical sealants to compare. This brand is very difficult to push out of the tube - need high-pressure gun - I asked the manufacturer and that is normal. Advantage it probably has no shrinkage - others are easier to apply but will shrink as the carrier bleeds off. But Amazon has terrible packing - two of the different companies - this one the worst have the nozzles jammed into the tube - this one appears heavier than the others since minimal solvent maximum caulk so is easier to damage in shipping IMHO. Seems great if you have a high-pressure gun, but until Amazon figures out how to ship single tubes of caulk buy from somewhere else. I am staying with USG which is the industry standard for acoustical engineers for decades. There are others I tested that I will not recommend - too think, too much shrinkage, etc. Just because it is called acoustical sealant from a well-known company, does not mean it is "good" acoustical sealant.

Good product and conveniently shipped to your doorstep.