On 11/3/07, Israel Stein <<a href="mailto:custos3@comcast.net">custos3@comcast.net</a>> wrote:<div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> I am not sure that so called "acoustic foam" is worth the expense. From what I read on the results of a "Google" search the concerns being addressed are mostly architectural - fire resistance and appearance. These are not considerations when installing foam in a piano - it's out of sight, and the piano itself is not fire-resistant...  So next time, try the simple foam mattress - it will do the job. Or give your client the choice - are they willing to pay the extra fifty bucks for pretty, fire-resistant foam? </blockquote></div> On the job that I mentioned before, I tried a foam mattress pad that I bought from Wal-Mart.  This was after both top and bottom foam from Edwards was in place, but it was still too loud.  So I drove to Wal-Mart since it was very close by...it was worth a try just to see if more foam would help.  It made some difference, but not enough. So I ended up doing the voicing, which did the trick in conjunction with the foam. I remember doing a lot of looking online at acoustic foam after this job.  If memory is correct, it is much thicker than one you can buy for a mattress (at least at that one WM).  And, the acoustic foam is quite a bit denser, which theoretically will reduce sound more.  If it's worth the price difference might depend on the situation ( i.e., what level of sound reduction is needed). But for $20 or so, it would be worth a try if you didn't need to reduce the volume too much. JF I found this out this year, and it angers me terribly!  Did you know that the Federal Reserve is a private bank controlled by the banking elite for their own benefit? Check out <a href="http://www.themoneymasters.com">www.themoneymasters.com</a>