----- Original Message ----- From: "Gregory Fraser" <Gregory.Fraser@pwgsc.gc.ca> To: "List for Photo/Imaging Educators - Professionals - Students" <photoforum@ase-listmail.rit.edu> Sent: Monday, June 24, 2002 2:11 PM Subject: RE: Water resistant tile > What I'm curious about is how you get all the developer, that must soak into > the tile, neutralized or do raw tiles not absorb moisture? > > Greg Fraser >-------- Hi Greg, I use a subbing on the tile made from gelatine - just like I would use on watercolor paper when making a gum dichromate or cyanotype print. I use a few drops of formaldehyde in the gelatine mix to harden the coating. This subbing seals the tile and makes a film that holds the liquid emulsion in place. The tile is processed just as if it were photo paper and is placed in fix as a last step. Here are a couple of web addresses that have mroe information on the subject of liquid emulsion. http://www.rockaloid.com/default.htm and http://www.merrillphoto.com/Slatehowtopage.htm It's a messy, expensive and frustrating process, but I love it. Let me know if you try working with it. Marilyn
