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Alternative to polyurethane spray?
Hello,
I am looking to use a less toxic version of polyurethane spray. I use polyurethane to fix patina on copper but even though it works well I hate it. Has anyone come up with a less toxic product? I am wondering if a gesso or water based varnish could be used to fix the patina? Also anyone have an alternative to 3M Super 77 spray mount for sticking down paper? Thanks, Tim |
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Tim wrote:
Hello, I am looking to use a less toxic version of polyurethane spray. I use polyurethane to fix patina on copper but even though it works well I hate it. Has anyone come up with a less toxic product? I am wondering if a gesso or water based varnish could be used to fix the patina? There are a number of brush-on, water-based acrylic finishes; I've had good luck using some of them to seal metal-finished projects. Pick some up and do some test pieces to see which ones work best for you. Also anyone have an alternative to 3M Super 77 spray mount for sticking down paper? YES Paste (made from wheat) and Coccoina Paste (from potato starch) are both excellent, archival-quality pastes especially suited for paper work. Working with paste is a bit more labor intensive than using spray, and the set-up time is longer, but I like the results; both are pH-neutral and don't cause paper to buckle. A google search should turn up numerous suppliers for both products. -- Pat Kight |
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