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cocobolo bowl after dishwasher

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Forum topic by harum posted 01-05-2015 04:54 PM 913 views 0 times favorited 10 replies Add to Favorites Watch
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harum

216 posts in 1108 days


01-05-2015 04:54 PM

Topic tags/keywords: turned bowl bowl cocobolo refinish finish sanding water damage

Hello, our neighbor had washed by accident their new cocobolo bowl in a dishwasher with a hot water cycle, including drying. Most of the nice dark brown color with black and reddish stripes turned patchy pale yellow and gray. The finish peeled off at the top of the bowl. No cracks though, and the warpage is barely visible.

Can the color be restored by sanding? Or it’s pretty much gone because of the hot water and steam? It was a beautiful bowl before and now the top of the bowl looks like it has been exposed to the elements for several years. Would appreciate any comment.

Best wishes, h.

-- "If you're not counting the ripples when throwing pebbles in the water, you're wasting your time."


10 replies so far

View mahdee's profile

mahdee

3553 posts in 1232 days


#1 posted 01-05-2015 04:56 PM

Can the lip be cut? It will make it shallower, but….

-- earthartandfoods.com

View harum's profile

harum

216 posts in 1108 days


#2 posted 01-05-2015 05:07 PM

The top half of the bowl has lost the color and some discolored patches go even lower towards the bottom. I don’t think all of them can be cut.

-- "If you're not counting the ripples when throwing pebbles in the water, you're wasting your time."

View Cliff De Witt 's profile

Cliff De Witt

130 posts in 2157 days


#3 posted 01-05-2015 06:28 PM

Sometimes it hurts to be dumb.

Sounds like a donation to empty bowls project.

-- Trying to find an answer to my son’s question: “…and forming organic cellulose by spinning it on its axis is interesting, why?”

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mahdee

3553 posts in 1232 days


#4 posted 01-05-2015 06:47 PM

In that case I can suggest using mineral oil to soak it with and once it is saturated, use a small torch at fairly low flame and apply enough heat to darken the lighter areas to match the color. Then put in a oven and heat to about 200 for enough time to heat just the outside, rub with bees wax while hot and buff.

-- earthartandfoods.com

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harum

216 posts in 1108 days


#5 posted 01-05-2015 07:38 PM

Thanks for all the responses. Did the color of the wood chemically fade away because of the heat and moisture or get washed away by the hot water, steam and detergent? Would like to be able to at least explain the neighbors where the color went. Here is the color change: from chocolate to brownish-gray; a small patch of sapwood is seen, which changed color too:

This side is not damaged as much: a patch of sapwood and heartwood of almost the original color:

-- "If you're not counting the ripples when throwing pebbles in the water, you're wasting your time."

View mahdee's profile

mahdee

3553 posts in 1232 days


#6 posted 01-06-2015 02:59 AM

It looks like the finish has washed out. Try lacquer thinner to see if it comes off and re-stain and finish it. If it is not lacquer, put a double tape in the back and attach it to a piece of wood, put it on the lathe as sand it, stain and poly or lacquer.

-- earthartandfoods.com

View Buckethead's profile

Buckethead

3140 posts in 1334 days


#7 posted 01-06-2015 03:57 AM

I just read a thread on ebonizing with vinegar, steel wool and tannic acid. I’m not sure if that’s suitable for a bowl, but it seems like an option, potentially.

-- Support woodworking hand models. Buy me a sawstop.

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harum

216 posts in 1108 days


#8 posted 01-06-2015 02:52 PM

Thanks mrjinx and Buckethead, I’ll try sanding on the lathe first and will see how it goes.

-- "If you're not counting the ripples when throwing pebbles in the water, you're wasting your time."

View waho6o9's profile

waho6o9

7174 posts in 2042 days


#9 posted 01-06-2015 02:57 PM

Good idea Harum, me thinks if you sand and refinish

the bowl will be okay.

View Tim's profile

Tim

3118 posts in 1426 days


#10 posted 01-06-2015 03:13 PM

Who puts a wooden bowl in the dishwasher? Yeah I think dishwasher detergent is pretty harsh stuff and the heat and water will do it’s damage too. I hope they are either paying you well for the repair or realize what a favor you are doing to repair it for them.

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