This topic has been talked several times on this forum but I can't find anyone mention the acrylic damping material. Has anyone use something like this? Does it work? I would like alternatives to insualtion material as they normal come as a big bag and I only need a small amount for my 3 pi. Thanks.

http://www.newmillennium.net.au/shopping.php?action=View&product=1845&subcategory=199