I'm refinishing my Sitka Spruce masts. They are outdoors, but under cover (dry when it rains). I've stripped off all the old finish, and I'm anxious to get a few sealer coats of varnish on to stabilize the wood. I'd like to address the stains, and the following photos show some examples.
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Based on advice from the old thread, I plan to scrub with diluted oxalic then rinse with water. Two questions, though:
(1) How much dilution? 50/50?
(2) How long to wait until rinsing?
Thanks in advance, and I'll keep everyone posted on the progress.
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