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? >The purpose of any wood finish is basically threefold: > 1) It should enhance the beauty of the wood. > 2) It should protect the wood from physical damage. > 3) It should provide a reasonable vapor seal to protect the wood from >changes in humidity and by so doing help to stabilize the wood against >dimensional changes. In my view, this is probably the most important >requirement for a piano soundboard finish. Rob Edwardsen 21 Courtenay Circle Pittsford, NY 14534-2101 716-586-1360 edwardsn@rpa.net
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