Inquiry (采购产品): do you sell to the public I am trying to build a special photographic developing tank for black and white sheet film . will EPDM 40a durometer and neoprene 40a hold up to the chemistry. photography chemistry is mild alkaly, diluded acetic acids and salts. Thanks Dale Danowski P.S. can it be cut with a knife. **** Hidden Message ***** dale danowski richmond, IN 47374 USA Company: no company Title: all around artist E-mail: mandolynn4u@verizon.net **** Hidden Message ***** mandolynn4u@verizon.net