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White spots on a table

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Forum topic by Dale posted 07-06-2015 03:04 PM 583 views 0 times favorited 6 replies Add to Favorites Watch
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Dale

7 posts in 746 days


07-06-2015 03:04 PM

Topic tags/keywords: white spot question acetone cherry mahogany help refinish repair hot

I really hope you guys can help me with this.

I have an old table that looks like cherry or mahogany that is pretty worn and has almost no protective finish on it anymore.

What has happened is some hot, cooked ears of corn were put on a pot holder and set on the table. A glass dish holding warm pulled pork also was set on the table, this one without a pot holder under it because it wasn’t that hot.

When the pot holders were removed, big white spots remained.

I’ve tried regular cleaning stuff and mineral spirits with no success. I have not tried lacquer thinner or acetone for fear of making the problem worse.

Is there anything I can do to remove the spots without resorting to refinishing?

Thanks!

Dale

-- The secret to creativity is knowing how to hide your sources.


6 replies so far

View pintodeluxe's profile

pintodeluxe

4852 posts in 2273 days


#1 posted 07-06-2015 06:03 PM

There are several cleaning products by Howards you can try.
Some are oil and wax blends, while others have an abrasive for heavier cleaning.
My best guess is you are looking at a total refinish. The last dining table I refinished, I was able to just do the top. The finish on the base was fine, and I was able to match the color. It took a good weekend to refinish, but was well worth the time invested.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View FellingStudio's profile

FellingStudio

93 posts in 1142 days


#2 posted 07-07-2015 06:05 AM

Wipe some denatured alcohol on it, light the denatured alcohol on fire.

Here’s Charles Neil’s video on the technique …

https://www.youtube.com/watch?v=XzN_UdsIhtQ

-- Jesse Felling - http://www.fellingstudio.com

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Dale

7 posts in 746 days


#3 posted 07-07-2015 01:04 PM

I think the fire method works on the same theory as some of the YouTube videos showing folks applying a steam iron over a cloth on the spot to make it disappear.
I’m skeptical because I don’t trust everything I see on the internet. The spot obviously is something drawn up from the wood and not transferred from the object that caused it, like a water spot would be.
Heating the area seams like it would soften the finish, to even out the area. My concern is that, although the videos show it disappearing, that the area heated and steamed (or set fire to) will turn white after it cools, which is not shown in the videos.
That’s why I wonder if any of you competent woodworkers have actually had experience with this as a real fix.

-- The secret to creativity is knowing how to hide your sources.

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FellingStudio

93 posts in 1142 days


#4 posted 07-07-2015 01:42 PM

The white spots are caused by condensation from your corn. It absolutely was transferred in when you set them on the table.

While you may not believe everything that you see on the net, and Charles Neil is maybe a bit of a doofus, but he is very knowledgable.

Do what you want, it’s your table after all, and it sounds banged up, maybe it’s due for a total refinish.

-- Jesse Felling - http://www.fellingstudio.com

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FellingStudio

93 posts in 1142 days


#5 posted 07-07-2015 01:45 PM

By the way, I have used the technique. It works.

(And, not to brag or anything, but I also think that I am pretty competent.)

-- Jesse Felling - http://www.fellingstudio.com

View Dale's profile

Dale

7 posts in 746 days


#6 posted 07-07-2015 02:42 PM

Thanks for the reinforcement! I will give it a try.

-- The secret to creativity is knowing how to hide your sources.

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