RE: gum preservatves (polyester resin)
Alberto, Sorry it's resin not rosin. Two very different substances. Resin is man made; rosin is a natural product. Don Bryant -----Original Message----- From: Alberto Novo [mailto:alt.list@albertonovo.it] Sent: Friday, September 05, 2008 3:22 AM To: alt-photo-process-l@usask.ca Subject: Re: gum preservatves (polyester resin) > But I'll look for the polyester resin -- whatever that is. It reminds me > that I came across a formula for "resinotype" in an American Annual of > Photography from the 1920s... Very frustrating: It calls for "resin" but > doesn't say what kind. Simply change a vowel: rosin Alberto
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