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You are very welcome.

When was the last time your heard that, instead of "No problem."

Alan, check the Wikipedia article on rosin. It may be useful. Here's the link: https://en.wikipedia.org/wiki/Rosin

As I understand it rosin comes from pine tree stumps a by product of turpentine manufacturing. It might dissolve in turpentine or some other solvent that could be a carrier material and evaporate...