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Llarian
Posts:44
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| 07/17/2007 12:34 PM |
 Alert
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I am a plastic dealer (real job) and an artist for fun and satisfaction. I sell a lot of an expanded (air injected) PVC sheet product called by the brand names "Celtec" and "Sintra" for signage. It comes in 4' x 8' sheets, in white, black, and several colors. I have experimented with this product (1/4" white only) as a support for oil, pastel and watercolor. I have gessoed it with acrylic dispersion medium (Golden) and applied oils directly to the gessoed surface as I would to canvas or MDF/masonite. I have mixed my gesso with pumice and applied pastels. I have mounted watercolor canvas to the Sintra and painted that way as well, all with good results. My question is whether this material will be reasonably safe and stable to use as a support over a reasonable length of time. (I am not Da Vinci, so no 500 year museum conservator worries here! I just want it to last for a couple of generations.) The desirable qualities of this support are as follows:
1. it always has the same surface, unlike canvas
2. it is rigid, unlike canvas
3. the surface does not mar easily, so if you buy a sheet you can use the whole thing and not have to cut around scratches and imperfections, unlike MDF and Masonite
4. It stores easily- heat and moisture dont ruin it.
5. It weighs a lot less than MDF or Masonite
6. It is designed for the sign industry to be painted, glued, etc. so these stick to it without sanding or otherwise prepping. I only gessoed because I was not sure if the product outgasses or has a neutral pH.
Does anyone actually know if this material will hold up as well as masonite or canvas, or if it has some detrimental property that I am unaware of? I can guess, but if someone actually knows, I would sure appreciate a response.
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