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General Finishes Enduro Clear Poly. Water clear to start and forever. Chemical durability about equal to EnduroVar and higher abrasion resistance. Available in quarts. Literature says spray only but I've had no trouble applying it on smaller panels with a foam brush.
John
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Carolyn
As far as I know, polycrylic will satisfy your requirements. It looks bluish when you brush it on, but dries colorless. It has not been around long enough to prove that it is colorless forever. I have used it on a number of projects and like it. I coated my workbench with it two yr ago with no color change noticeable yet, and it is durable.
Blond shellac is not water based and is not quite as colorless as acrylic but it would be my second choice.
Doug
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I agree with John on Enduro Clear Poly, you can also use Crystalac Poly-Ox not quite as abrasion resistant but real good chemical resistance. Either can be applied easily with a foam brush although spraying is easier.
homo homini lupus
"The best lack all conviction, while the worst are full of passionate intensity." Yeats
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Quodcumque potest manus tua facere instaner opere Ecclesiastes
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Well, if it is not exposed to UV, then the two part epoxy coatings are super-durable.
When wood bar tops were popular (they all seem to be granite nowadays), epoxy was the finish of choice. Of course bar tops are not generally exposed to much sunlight so UV is not an issue.
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