In the near future I'll put 3 layers of gypsum boards on the walls/ceiling of my room and I'll be needing a lot of caulk. Some say that acoustic sealant/caulk is the only thing that can be used. The problem is that I'm not 100% sure what the definition of acoustical sealant is, and how to get it here in Norway. Some say that Sikaflex will do, but it's very expensive and I was hoping for something a little cheaper.
Since the caulking part is still some weeks (months?) into the future, I can import it from the states if necessary (as long as the caulk can be stored in freezing temperatures on a container ship over the Atlantic).
Hmm... One problem with importing from the states might be that they use other dimensions on the tubes. We use 310 ml and 600 ml here in Norway.
Where to get acoustic sealant/caulk in Norway
Originally posted at johnlsayers.com, topic 10026.
Well, I can get pretty much any kind of caulk (silicon) here in Iceland, so I'm sure you could get it in Norway too.
Trying to be a good neighbour but is 49NOK THAT expensive for a tube of Sikacryl? You'll find it at Jernia for that price.
Wan't to go cheaper? buy the stuff from Clas Olsson for 39NOK
http://www.clasolsson.no/Product/Product.aspx?id=21567528
If that's too much you can always order it from Clas Olsson in Sweden for 24SEK, but they'll probably charge a lot for transporting it to you.
happy caulking!
a
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Ofcourse not! But I was told that ordinary acryl based caulk wouldn't do, and that the closest thing to "acoustic caulk" was Sikaflex (which costs about 150NOK where I live at least).Trying to be a good neighbour but is 49NOK THAT expensive for a tube of Sikacryl? You'll find it at Jernia for that price.
Just to make it perfectly clear: You're saying that I can use the cheapest acryl based caulk I can get my hands on (Biltema has it for 23 NOK BTW), because it's just as good as using so-called "acoustic caulk"? If this is the case I think it's great news! -RuneWan't to go cheaper? buy the stuff from Clas Olsson for 39NOK http://www.clasolsson.no/Product/Product.aspx?id=21567528 If that's too much you can always order it from Clas Olsson in Sweden for 24SEK, but they'll probably charge a lot for transporting it to you. happy caulking! a :arrow:
The US product I found is this:
SC-175 Draft & Acoustical Sound Sealant from OSI Sealants.
Description:
SC-175™ Acoustical Sound Sealant is a water based sealant designed to reduce sound transmissions in walls and partition systems. Primary function is to achieve and maintain the specific STC (Sound Transmission Class) value of the system design. VOC compliant.
Features:
UL tested and classified ,Non-flammable formulation ,Easy application and clean up ,Will not harden crack or separate ,Non-staining and non-migrating ,High degree of adhesive and cohesive strength ,Best Uses ,Pro-Series® SC-175™ was developed primarily for commercial construction utilizing light weight cavity walls and floor systems. The sealant is used for exposed and unexposed applications at perimeter joints floor and ceiling runners (either wood or metal) cut-outs in gypsum board veneer plaster systems and other areas where a sound rated assembly is required. Comes in 29oz Tubes.
I think the most important fact here is that it doesn't EVER harden (which almost all other types of caulk will eventually do), so it maintains an airtight seal when surfaces eventually shift slightly over time.
The use of "backer rod" (thin flexible foam "rope") is important in giving the caulk a rear surface to hold on to, in addition to the two surfaces you are joining. You don't want to build air/sound tight walls and them have leaks appear in the form of tiny through cracks after a year.
This is only from what I understand. Some one please correct me if I am wrong.
~ Bill
Yes, this is more or less what I have understood too - that ordinary "painters caulk" just don't cut it, but what do I know...
The Sikacryl for OR the one found at Clas Olsson is "acoustic sealant" I've used both products and they work just fine. a :arrow:Yes, this is more or less what I have understood too - that ordinary "painters caulk" just don't cut it, but what do I know...
I can get Sikacryl-S for about 50 NOK per 600 ml sausage. If nothing else comes up, I think I'll go for that. Sika even calls it "acoustic caulk" or something similiar, so I guess it's ok. BTW: Just out of curiosity. How do you know that the products you mention above "works just fine" if the difference (and I'm not sure that there is any) between "standard caulk" and "acoustic sealant" is that the latter works just as good after 5 years and the former might crack a little? I'm NOT questioning your judgement, I'm only qurious about the methodology you're using for determining this.The Sikacryl for OR the one found at Clas Olsson is "acoustic sealant" I've used both products and they work just fine. a :arrow:Yes, this is more or less what I have understood too - that ordinary "painters caulk" just don't cut it, but what do I know...
The difference between normal caulk and sealant would be just what you specified. :poke: The acoustic sealant or any acrylic caulk is elastic and will not crack as it flexes between the gypsum. I know this as a professional carpenter not as a studio builder, even though I buildt my own studio and been advicing and helping out on other people's studio builds.
But if you want to spend the extra money on something that some "pro" recommends, be my guest. :roll: In my experience there little or no difference between the products, just the price.
a
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Ok, thanks, Andreas! What you write is pretty much what I've suspected.