A few years ago I decided to paint some icons on 1/2 inch craftwood (it sands completely smooth, is lightweight and came highly recommended by another artist). I carefully sealed both sides & all edges with artist quality sealer. I painted about eight paintings in oils, 12" x 24" each. Even put gold leaf everywhere. Then we moved house & they were stored in a spare room, stacked on edge against an internal wall. I thought I'd get them out for an exhibition and there was a mound of grey mould completely covering all surfaces in the stack. They went to the dump.
Also, apparently the glue has a formaldehyde base, so I'm advised, so the other problem with man-made panels is that they vent fumes for about five years and then there is no strength left in the glue and they begin to separate.
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Margaret Port
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