DIY: Dent repair with Dry Ice
06-28-2010 | 05:59 PM
#31
Thread Starter
Three Wheelin'
Joined: Nov 2003
Posts: 1,472
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From: SF bay area
(...but given the reflection, it's hard to believe you'd actually use a car cover on your 996...trying to keep it nice or something??? :-) )
Good questions, Here are some answers:
- did you use a hair dryer or a heat gun?
I used a heat gun
- did you guess how warm the metal was getting, or did you measure it in some way?
I measured it with a IR thermometer keeping the sheet metal temp below 200 degrees F.
- what kind of suction cup have you used in the past?
I have a glass installation suction cup that is 4.5" in diameter. i spray a little detailing spray on it, put the edge of the cup on the center of the ding, and then slide it along and past the ding, pulling up on the suction cup as I go by the ding.
- at what point in the cycle did you use it? (e.g., wait for the metal to cool just enough so it wouldn't harm the suction cup?)
I would use it after the cold shrink cycle.
Hope this helps.
06-28-2010 | 06:49 PM
#32
Pro
Joined: Mar 2008
Posts: 710
Likes: 1
From: harrisburg pa
That is why you don't use pellets, but rather a block, and don't apply any pressure.
a block piece of dry ice lightly held on the dent will not cause scratches.
This is a gradual process, like working with an English wheel. I have found in addition to the hot/cold shrinking, that a small suction cup helps the process, especially for larger dents.
a block piece of dry ice lightly held on the dent will not cause scratches.
This is a gradual process, like working with an English wheel. I have found in addition to the hot/cold shrinking, that a small suction cup helps the process, especially for larger dents.
06-28-2010 | 07:21 PM
#33
Newbies Hospitality Director
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From: Winston-Salem, NC
Bawhahahahah!!! I started to laugh out loud when I read that ^! Normally, that's not a bad thing, but I am at work so I had to hold back the laugh...... almost choked myself to death.
06-29-2010 | 01:15 AM
#39
Racer
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From: Timbukto
06-29-2010 | 05:28 PM
#43
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From: Santa Barbara, CA
This is an age old technique that is popular in the mid-west to deal with hail damage to car bodies. Supposedly you can place a small piece of it on the hail depression on a hood and allow it to pop the metal back to normal.
06-29-2010 | 06:56 PM
#44
Nordschleife Master
Joined: Nov 2008
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From: Mooresville, IN (Life Long Cheesehead)
Looky Looky........
http://www.dryicedirectory.com/usa.htm
Plug your area code and become Dr. Freeze.
http://www.dryicedirectory.com/usa.htm
Plug your area code and become Dr. Freeze.