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Results 1 to 14 of 14
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1st November 2012, 01:12 PM #1
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Help! Tung Oil Finish hasn't taken
I've just finished oiling a kitchen bench with Tung Oil and let it sit for a few days before using it. A damp (not wet) sponge was left on it for a few minutes. It appears that the oil colour has leached out and the grain of the wood has risen in that spot. What have I done wrong? and does anyone know how I can fix it. The timber is Cypress Pine and it was properly stripped and well-sanded before the many coats of oil were applied.
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1st November 2012, 05:41 PM #2
So the damp sponge was put on the oil after it was left to dry? You can rectify the patch by sanding it back, probably to about 800g then add oil, one coat will be enough and wet sand up to where you finished before.
First thing I can think of is to try applying another coat of oil after sanding the damaged piece of bench. Is the rest of the bench still OK? i.e. no signs of patchiness or raised grain?
I suspect that the oil has not fully dried.
It is unusual for the Tung oil not to have dried after some days but If you have put many coats on, it will take a little longer to dry. I usually leave it for a week. If you have some 1500 or 2000 grit left, give the whole bench a rub over and reapply the Tung Oil and then use the 2000 grit vigorously to sand the wet oil in. Then try leaving it for a week and see how it looks. It should be smooth and clear.
Regards,
Rob
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1st November 2012, 05:45 PM #3
Tung oil can take a long time to dry properly (weeks). When sanding/applying, were you giving it 2-4 days between each coat?
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1st November 2012, 08:30 PM #4
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1st November 2012, 09:53 PM #5
did you use a pure tung oil or one which was polymerised or had dryers added to it?
of course I can never find the reference when I need it, but somewhere I've read that the time between coats should be at least 24 hours and the final coat should be left for around 7 days before use.
Because of the way true oils dry, I don't think the weather has much influence -- provided we'e not talking days on where the max tempurature is less than 15° Cregards from Alberta, Canada
ian
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3rd November 2012, 07:38 AM #6
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The product I've used only has limonene added which as I understand it is a citrus thinner. As it was the only thing I could find around here that was what I went with.
To follow up your response, Rob, only the patch where the sponge was left was affected and I sanded that lightly and applied more oil. You can still see a ghost of a mark so I think I'm going to apply more oilto the whole bench and rub in as you suggested. Hopefully, this will all work because the finish looks fabulous apart from the mark and I would dearly love to have a working kitchen again.
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3rd November 2012, 08:28 AM #7
That's great. Hope it works out well for you. It will be worth the agony though, I think.
Regards
Rob
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12th November 2012, 01:46 AM #8
Hi Ghowe
how did re-oiling your bench come up?regards from Alberta, Canada
ian
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16th November 2012, 10:41 AM #9
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Unfortunately, if you know where to look you can still see the ghost of the sponge mark but I can live with that. I've done a small test to see if it's likely to happen again and it seems alright. It's now been about 10 days since the repair job so over the weekend my husband will be putting the sink and stove back and the real test under fire of the water resistance will begin. If there still appears to be problems I think the only thing to do will be the varnish over the top which will be very disappointing so fingers crossed...
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16th November 2012, 09:47 PM #10
Waiting as well.
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16th November 2012, 11:14 PM #11
thanks for the update
let us know how it turns outregards from Alberta, Canada
ian
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18th November 2012, 07:56 AM #12
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18th November 2012, 08:13 AM #13
Hi Ghowe,
Never doubted you'd get it right!
Excellent!
Regards,
Rob
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18th November 2012, 10:58 AM #14
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