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Rubbing Alcohol + Heat = dent repair?

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Forum topic by depictureboy posted 11-23-2010 08:34 PM 1880 views 1 time favorited 7 replies Add to Favorites Watch
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depictureboy

420 posts in 3110 days


11-23-2010 08:34 PM

Topic tags/keywords: question

i read on a music instrument forum that some guys on there use put rubbing alcohol in a ding, light it on fire and it causes the ding to swell and disapear…I am at work right now and cant experiment on this…have any of you ever tried this? I would have to think you would only want to do this on bare wood not one that has been finished in any way; blo for instance…

what do you all think?

-- If you can't build it, code it. If you can't code it, build it. But always ALWAYS take a picture.


7 replies so far

View Max's profile

Max

55996 posts in 3740 days


#1 posted 11-23-2010 08:39 PM

I have not tried this but have used a wet cotton cloth put over the dent and then a iron on that which will swell the wood fiber’s to bring it up to where you can sand it smooth again.

-- Max "Desperado", Salt Lake City, UT

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CharlesNeil

1610 posts in 3338 days


#2 posted 11-23-2010 08:40 PM

yep I Have heard of it http://www.youtube.com/watch?v=cdtsa4Sazvw

works great on bare wood, if its finished gently slice the finish with a razor blade, and use some hot water, you have to get the moisture and heat to the raw wood, on finished pieces it isnt perfect, but does pretty well,

View tbone's profile

tbone

273 posts in 3152 days


#3 posted 11-23-2010 09:22 PM

I have used that method many times. It works great. It’s particularly useful on woods that are prone to watermarks—red oak comes to mind.
The heat from the alcohol does the trick without any residue left behind. It burns ‘clear’ so you need to be a little bit careful to keep your hand away from a flame that is hard to see.

-- Kinky Friedman: "The first thing I'll do if I'm elected is demand a recount."

View newbiewoodworker's profile

newbiewoodworker

668 posts in 2294 days


#4 posted 11-24-2010 03:50 AM

Am I the only one that thinks its a bad idea to intentionally light your wood on fire..?! I mean comeon… fire is fire… wood is wood… lst I checked one fuels the other…

-- "Ah, So your not really a newbie, but a I betterbie."

View Millo's profile

Millo

543 posts in 2517 days


#5 posted 11-24-2010 04:08 AM

I saw that on a Michael Dresdner ( I think that’s his name) video. He put some drops of denatured alcohol in the dent and took a lighter and set it aflame… it burned instantly, and each time he did it it brought the fibers back up. Before that, he showed the clothes iron/water trick.

View Joe Lyddon's profile

Joe Lyddon

9451 posts in 3520 days


#6 posted 11-24-2010 04:11 AM

newbiewoodworker,

Did you look at the Video on YouTube by CharlesNeil?

The wood does not burn… The fire burns the alcohol, which heats any other moisture, which expands the wood, which tends to remove the dent…

Very clever… Watch the video…

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: http://www.WoodworkStuff.net ... My Small Gallery: http://www.ncwoodworker.net/pp/showgallery.php?ppuser=1389&cat=500"

View lanwater's profile

lanwater

3111 posts in 2401 days


#7 posted 11-24-2010 07:54 AM

I have done it a couple of times. It works on very shallow dents.

-- Abbas, Castro Valley, CA

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