« Reply #1 on: January 18, 2013, 12:58:23 PM »
Ive used polycrylic from minwax on metal many times, but i spray it. a light wet coat and then air dry and then bake with heat lamp, then a light scuff with 600 or finer in one stroke. tack off and then spray your color. when its dry give two light coats of polycrylic over the silver. let dry and then bake. you should be able to walk on it and not scratch it.
if it gets real wet for an extended period, it will turn milky, but this goes away when redried. Ive got it on my wood countertops for 25 years and no scratch or peel, only the milky white if allowed to get soaked.
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