Coat Of Silence Paint?

[extendedplay]

Has anyone had any experience with the "Coat of Silence" paint? It looks interesting. Here is a link: Coat of Silence Sound Reduction Coating
Not sure if it is only for transmission reduction or if it could help as treatment for walls. I am starting to build a room in an industrial building (5,235 sq. ft.) and I'm hoping that it might be a useable tool.

Steve

[Sebg]

Perhaps I could interest you in a bridge I happen to have for sale.

Hardly used. Very quiet.

[Starlight]

The company claims (on this page), "Our patent-pending Coat Of Silence resilient layer (base coat) is scientifically formulated to deflect sound transmission with a 52 STC rating."

The laboratory test report mentions that the specimen tested was: GP#2 Coated Gypsum (Source Side) on Insulated Steel Stud Wall Assembly with 5/8" Gypsum Board on Both Sides. Paint was not mentioned as being tested!

I hope no one is gullible enough to fall for such a con.

[Dange]

I've got a rough plan for a mechanized applicator of this paint that harnesses perpetual motion......

[MuteXsoundproof]

We spent a lot of money trying to find out how effective MuteX is, then we gotta compete with this.

2 layers of 5/8" gypsum,25 gage steel stud (instead of wood) 12 inches on center (instead of 24") filled with R13 cellulose and then covered with GP2. How much GP2? What effect does it have? Who knows. I saw another test like this where they used asbestos wallboard.

Just sayin', when you see claims like this, read the fine print.

[latestflavor]

YouTube - ‪The World's Greatest Vitamin. Most Healthy Multivitamin EVER‬‏

basically, these two products appear identical.

[extendedplay]

So obviously, none of you has any actual experience, therefore nothing practical to add. But it is great to get your opinions, albeit uninformed.

Originally Posted by Sebg

Perhaps I could interest you in a bridge I happen to have for sale.

Hardly used. Very quiet.

Wouldn't it have been wittier to have made a reference to the "Get Smart" "Cone Of Silence"? But then again perhaps you don't have that ability.

[jhbrandt]

extendedplay,

Yeah, I wondered if you were trying to say 'Cone of Silence'. Ha!

Paint; For concrete and gypsum board is important because it seals the pores. Concrete is porous and sealing a concrete wall with paint on both sides will add about 3 decibels to the transmission loss - which is like twice as quiet.

Amazing for just paint. So yes, painting a concrete wall that has an STC rating of 49 will increase it to STC52.

But.. there is no magic paint that will add 52 decibels transmission loss. Any paint will seal well if you put on enough coats. So by all means get paint and paint your walls before you apply acoustic treatment. - but you don't need anything special.

Cheers,
John

[Dange]

Originally Posted by extendedplay

So obviously, none of you has any actual experience, therefore nothing practical to add. But it is great to get your opinions, albeit uninformed.

I have to apologise for not reading all of your post ...I missed the bit at the end about you needing advice! I was too taken by the marketing and website of the paint! Their product is not compared to anything else so their testing is pratically meaningless

You can get render for masonry that does the same thing as John mentioned, seals pores, small gaps etc. It's marketed as Soundcoat in the UK - Gyproc Soundcoat Plus

In my mind the render would be better than the paint on brick, it adds mass for one thing, but I don't have any data to back this up just theory.

[Sebg]

edit: I did not intend to cause offense. I do apologise if it is not obvious that a "52dB sound paint" is just snake oil. There is no test showing results for the wall system with/without paint - that would be the robust scientific approach.

And painting concrete to give a 3dB improvement only works when the concrete is relatively porous to start with. Typical would be cinder-based hollow concrete blocks. Normal-weight solid concrete does not have this issue.

[jefoscar]

The test shown on the website uses a standard format stud partition with cellulose insulation. This would not normally be tested by the major board manufacturers. I do however have test results for a similar construction at 150mm thich but using 2 layers of 12.5mm plasterboard. This gives 58dB!!! I do not think that the paint system is doing very much! If you decide to try this solution then good luck!

[Jens Eklund]

Originally Posted by jhbrandt

extendedplay,

Yeah, I wondered if you were trying to say 'Cone of Silence'. Ha!

Paint; For concrete and gypsum board is important because it seals the pores. Concrete is porous and sealing a concrete wall with paint on both sides will add about 3 decibels to the transmission loss - which is like twice as quiet.

Amazing for just paint. So yes, painting a concrete wall that has an STC rating of 49 will increase it to STC52.

But.. there is no magic paint that will add 52 decibels transmission loss. Any paint will seal well if you put on enough coats. So by all means get paint and paint your walls before you apply acoustic treatment. - but you don't need anything special.

Cheers,
John

+1 except for the 3 dB being a cut in half of the noise level . 6 dB is double the sound pressure and if that is perceived as twice as loud depends:

Loudness volume sound level change factor of perceived loudness formula calculate power level noise levels volume logarithm dependence three four fold loudness sound - by what factor does level decrease dependence comparison decibel levels 3 dBSPL 6

[DanDan]

52dB, ha that's chicken feed. Try the Rockwell Turboo Entabulator.
Total silence, plus chord charts.
Entabulator.wmv - YouTube

DD

[Rod Gervais]

Originally Posted by DanDan

52dB, ha that's chicken feed. Try the Rockwell Turboo Entabulator.
Total silence, plus chord charts.
Entabulator.wmv - YouTube

DD

LMFAO - that's a classic

[seen-da-sizer]

Originally Posted by DanDan

52dB, ha that's chicken feed. Try the Rockwell Turboo Entabulator.
Total silence, plus chord charts.
Entabulator.wmv - YouTube

LOL'd! The sad part: people are buying into this kind of speech:

[Glenn Kuras]

Originally Posted by DanDan

52dB, ha that's chicken feed. Try the Rockwell Turboo Entabulator.
Total silence, plus chord charts.
Entabulator.wmv - YouTube

DD

That kind of sounds like a few room designers I know. Kill them with words so they have to hire you!!

[solo-bration]

52db is no joke. You pour the paint into your ears for up to -26db each side.

[Coat of Silence]

Let me know if you have any questions regarding the coating system, I work for Vertetek. Thanks

[Coat of Silence]

The product will add 3 STC points when added to a non insulated wall, steel studs on center. Both sides must be coated with the system to an approximate thickness of 30 mil. No other coating in the world to my knowledge can equal this performance. If the wall cavity, and both sides of an adjoining wall are coated, we have seen increases up to 10 STC points with documented testing from acoustical engineering firms. I can virtually guarantee there is no coating in the world with testing anywhere near as comprehensive as ours. We used Orfield and Riverband for separate, individual tests...

[Coat of Silence]

I work for this company and have been witness to hundreds of applications. There seems to be a lot of misinformation out there, so please let me know if you want real, hard data regarding this coating system. One thing I will do, which is an absolute guarantee, is give you honest answers about the coating and if I cannot answer a question I will get it answered(within reason).

[Dange]

Originally Posted by Coat of Silence

The product will add 3 STC points when added to a non insulated wall, steel studs on center. Both sides must be coated with the system to an approximate thickness of 30 mil. ...............

Originally Posted by Coat of Silence

I can virtually guarantee there is no coating in the world with testing anywhere near as comprehensive as ours. We used Orfield and Riverband for separate, individual tests...

So why not post the before coating and after coating tests on your website that show the improvement? You've done these, right?

All I can see is one Riverbank Lab test of a wall that is coated - http://www.vertetek.com/tech-data/

The world of acoustics has more than it's fair share of snake oil products. You need to pay attention to showing that your product isn't one of those

[jhbrandt]

+1

Compare the docs attached:

That means that the paint gives you about 2db... but then again, the Vertetek test was done with 95mm studs so that may account for the 2db. - If so, where does the paint come into the equation??

- John

[BriHar]

The product will add 3 STC points when added to a non insulated wall, steel studs on center. Both sides must be coated with the system to an approximate thickness of 30 mil. ...

As John mentioned in a previous post, almost any paint could add 2 or 3 Db improvement to an untreated wall, so what is special about this paint?

No other coating in the world to my knowledge can equal this performance. If the wall cavity, and both sides of an adjoining wall are coated, we have seen increases up to 10 STC points with documented testing from acoustical engineering firms.

This 'documentation' is not available though...

I can virtually guarantee there is no coating in the world with testing anywhere near as comprehensive as ours. We used Orfield and Riverband for separate, individual tests...

Possibly because no other paint manufacturer has the gall to market their paint as soundproofing

I assume you mean't Riverbank?
Where are the Orfield results?

[Rod Gervais]

TO ANYONE READING THIS THREAD AFTER THE FACT - PLEASE SKIP TO THE LATTER PAGES - THIS IS NOT WHAT IT MIGHT SEEM BASED ON INITIAL REACTIONS

Originally Posted by Coat of Silence

I work for this company and have been witness to hundreds of applications. There seems to be a lot of misinformation out there, so please let me know if you want real, hard data regarding this coating system. One thing I will do, which is an absolute guarantee, is give you honest answers about the coating and if I cannot answer a question I will get it answered(within reason).

Send me all of the test data gathered - only complete reports - I do not want to just see results.

You can email them to me at

rgervais10@hotmail.com

Thanks,

Rod

[Dange]

For reference 30 mil = 0.762mm or 0.03 inches

[avare]

Is that a 2 POINT improvement in STC because of damping of the coincidence frequency which otherwise invoked the 8 dB deficiency rule?

Andre

[pitchfork]

No, it's because of the 3 Rules of the Internet.
The 3 Rules of the Internet - YouTube

[2manyrocks]

Originally Posted by pitchfork

The 3 Rules of the Internet - YouTube

Great space to make a recording. Love the concrete block look.

[Rod Gervais]

Originally Posted by Dange

All I can see is one Riverbank Lab test of a wall that is coated - Coat of Silence Sound Reduction Technology

I read that report - and I have a problem with the fact that the sample was so small (Small samples skew the results because of the lack of seams in the wall assemblies - which are weak points we have to deal with in the real world) - whereas the samples in IR-761 are 10' wide by 8' tall....... - this translates to no seams in the field for the Riverbank test - and (depending on drywall placement) either a single horizontal seam in the field of the body of the sample - or 2 horizontal seams if installed vertically (which I believe was the method of installation in 761.)

I have been through a similar situation as this with a manufacturer of cellulose insulation who made certain claims of superiority when it came to sound isolation levels with their product - and when I demanded that they produce the actual test report I found the same sample size - this was an easy one to prove wrong because IR-761 had test samples using a product with the same density as theirs - and the isolation levels were much higher in their test than they were in 761.

Great tests if we want to design buildings with people standing in closets - the real world is a different picture.

In addition, they do not describe the paint covering other than to name it - there is nothing about the method of installation - number of coats - mill thickness of each coat - all of that data is omitted (unless I missed something when I read the report).

I still await a copy of some meaningful data.........

I have yet to receive anything.......

Rod

[jhbrandt]

You are absolutely correct, Rod. I had thought that the sample size was small... I also requested data via email earlier and have not received anything to date. ~shrug~

This may be a candidate for my VooDoo page.

Cheers,
John