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washcoat shellac

  1. Wood Finishing
    Bob Flexner's book recommends a washcoat of shellac after applying grain filler and before varnish. I have no objections - who am I to argue? - but I'd like to understand the purpose of this. Also why a "washcoat" - thinned to around a 1 pound cut instead of the 3 pound out of the can. Can...
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