All the gaffs and spars on the schooner were wood and I try too keep them in proper Bristol fashion.
It is a lot of work to completely refinish a spar, gaff or boom for just a few dark spots that develop.
The reason wood booms and such are varnished is so you can see a crack or deterioration in the wood. If you paint them the paint hides these problems. When the varnish gets chipped the wood can discolor at that spot.
What you need to do to just refinish that area is use a scraper or knife blade to scrape down to the spot and scrape and or sand the spot clean. A little bleach on the dark spot may be needed to get rid of the discolored wood. The scraped area edges need to be feathered up to the level of the rest of the varnish. When you re-varnish the scraped spot use a few thin coats starting at the lowest scraped spot and slowly build up the new finish so it fills the depression made by the scrapping and feather the last coat in to the old varnish.
If you take your time it feather in to the original finish and can hardly be noticed.
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