Our institution cannot indorse vendors but I can pass on some product information. Sutherland Felt Company (284-280-0450; http://www.sutherlandfelt.com) has a line of thick polyester felt (.019-2”) in various weights. Recently we had a special project and this was the only vendor we could find for this product. Recently we used their polyester 3/8” 42oz material to make custom pads between bones for a fully mounted mastodont skeleton for exhibition. The thicker & denser the material the harder it is to cut. We successfully cut the 3/8” 42oz. material slowly with good heavy scissors. We did not Oddy test the material. The bones of our mount have a protective consolidant layer and are in an open gallery (not a case). Do not use wool felt in collections as it releases sulfur.