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That’ll osmo back to brand new.
Keep the tin, you’ll be doing it again in a year or two.
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I've fixed this, twice, on two different worktops. Yours' doesn't look too bad but the installation of the tap and sink looks questionable.
First you need to scrape away the existing sticky finish, as it will gum up a sander. A scraper, or a card scraper (look them up) are ideal for this.
Then you need to sand back to remove any damaged or very badly stained wood. You'll need a random orbit sander for large areas, and a multitool or palm sander for the hard to reach bits. Sanding sponges are also really handy for doing it by hand.
You then need to work up to a fine grit sand, then treat the wood with a food safe oil / wax based finish. These need periodic reapplication.
It's a bastard of a job, but the result can be awesome.
Hive mind. Any bright ideas how to restore this (I think) ikea work surface we inherited? It’s permanently sticky and there’s water damage around the tap. Would love a new surface but this will have to suffice for a while.
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