Robert B Edwardsen wrote: > > Del: > > It is my understanding from a class given by Chris Robinson on soundboards > that conversion varnish creates the best vapor seal. Have you had any > experience with it, if so why have you not mentioned conversion varnish as a > possibility? Is it actually a polyester? No, I've not used conversion varnish. I've looked at it as a finish material for piano casework, but have not yet taken the plunge. It is not a polyester. Different chemistry, but I'd have to look it up to tell you more. ddf
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