Koa table top cupping

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Forum topic by DanFinn posted 01-14-2014 08:27 PM 827 views 0 times favorited 3 replies Add to Favorites Watch
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5 posts in 1594 days

01-14-2014 08:27 PM

I posted my trouble about a cloudy residue after wet sanding with penofin on my Koa table top in the finishing forum. So I re sanded from 80 thru 220. Re-oiled the top, and have been letting the penofin oil cure for the past week. The top and bottom were oiled and the wood has not been in the sun. I checked the table top today and it has cupped about 3/8”. Planing isn’t an option. Anyone have any ideas? It’s a natural form top roughly 30” wide by about roughly 40” long. It’s also about 1” thick.

3 replies so far

View bondogaposis's profile


4716 posts in 2344 days

#1 posted 01-14-2014 08:33 PM

How about a picture?

-- Bondo Gaposis

View CharlesNeil's profile


2398 posts in 3864 days

#2 posted 01-14-2014 08:37 PM

turn it over , if you can ,get the convex side in some sun.. the top surface is drying faster than the bottom. It will reverse, just keep an eye on it as it can also reverse,

View Chris208's profile


239 posts in 2263 days

#3 posted 01-14-2014 08:49 PM

You might be able to pull out the cup when you attach to top.

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