Found this thread on my last car forum I browse from time to time. Maybe somebody will be interested, I sure was. The later video is better, turn up the sound.

http://mymonte.com/discussion/index.php?showtopic=21604

 

Wow! I think I'm going to have to try that. (but on the family beater car first) Nice find!

 

Is (airduster) the stuff you clean your keyboard and hard to reach places with??

 

i wonder if it can pull these dents out..

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yeah

 

Ouch, thats more of a crease. I would buy a new door lol.

I might try this myself tho. I have hail damage all over the hood, and dents on the door from other peoples doors.

 

yeah that was the plan anyways lol,but there a couple more dents that came with the car i can try to get out..

 

adam when u try it let me know how it worked!.. are you home from school? i have seen a car that looks exactly like yours.. only thing i think i did see it say formula 350 on the side. but i thought i seen it at DD one night when all the kids were hangin out.

 

no im still in NH for school, but I have been home for the weekends a few times.

 

you goin to try it?

 

Im gonna try it on my Jeep this weekend. Ive seen this way of doing it before and it will work. It just needs to be a shallow, not creased, larger dent. What im hoping ot get out it more of a wave in my driver door. Hopfully it comes out cause my Jeep is mint, and black of course.
Matt

 

This one I will have to put this tread into my favorites.

 

I was wondering if anyone had a answer to my question.

 

yep canned air

 

Ive heard/seen this work before. But it seems to work better on big "soft" dents that you'd make by leaning against a car or something. Im not sure it would work for dings or smaller dents.

I have a half dollar sized dent in my fender that Im going to try this on...hopefully it doesnt make my paint flake off. haha.

J.

 

still waiting to see if anybody has done it yet,and results?

 

i tried dry ice about two years ago on my stealth. i had few dents on the hatch. i never had the patience to wait for the dent to pull out but it did puled out about halfway and looked betteer

 

i really wish that i knew this 3 days ago before i started trying to pull the dent out of my door, now im running into all sorts of problems with the paint lol damn i wish i had this thread then lol

 

that sucks, didnt you just paint your car too?

 

Do this trick in warm weather (Or a warm environment). Its obvious that it works by expansion contraction principles, but also by the ammount of energy that can be worked upon it. If you start with a cold dent, then heat it for 1 minute with a hair dryer, it'll reach luke warm temp at best.

Also, I'd like to point out that those are dusters are NOT liquid CO2. If it was liquid CO2, it would spit out dry ice in an UPRIGHT position too. If you don't believe me, take the regulator off a CO2 tank and open the valve for a while (there's no detrimental effects, just don't do it in a closed room).

The ingredients used in air dusters today is usually tetraflouroethane, which will come out of the bottle at -27F. While dry ice is -109F. This is why the panel must be warm, not cold (above 60F) for it to work properly. Then, when heated with a hair dryer, it'll reach a much higher temp, lets say 90F locally for the point of argument. Then, thats a 117 temperature difference within seconds. That's a lot more energy enacted between the two points, as opposed to say a 57 degree difference (rougly 35-40F ambient temperature would get you this).

 

this thread is awesome and I cant wait to try it!!

 

lol yeah i just painted it in august....some woman hit my car a week and a half after ipainted it...4 days ago i bondo'd and primered the spot, then yesterday i went to paint and the paint bit in really badly so i had to sand it all down again and try again today lol thankfully its fixed now but still, i coulda saved myself some time with this trick! lol

 

did you prime over the bondo?
yeah, doing this woulda saved you a lot of time if it actually works.

 

yeah i primed over the bondo and everything, according to the place ibought the paint from what happens when you apply new paint on new paint liket hat is you have to dust it on so that it stays dry, but if you apply it so that its wet then it'll 'bite' inand look like paint remover was thrown on it

 

yeah what happen to your paint when you tried painting it again is called "lifting" the paint is not cured still so when you hit it with new chemicals on top of it, it reacts looks just like you said, like paint thinner was on it,....as far as that vid goes, i work at a body shop, i wouldnt do that....but thats jus me

 

why wouldnt you use this? i thought it was pretty neat, i'm actually still amazed by it lol

 

Will this work with some dents? Probably so....it's the concept of heating and shrinking metal. Then again, you have to think what kind of car it is. The aveo's probably have some of the thinest sheet metal out....so it really wouldn't take much at all in order to remove a dent with this method. Just depends with what kind of metal your working with. Would the guys that know the skill of PDR do this technique? I doubt it....it would be so much easier to just put your tool in...and push it out.

 

I tried it out today and it somewhat works. the dents I have are not as bad but still not perfect. I think its worth trying.

 

What procedure did you follow and do you have some pics??

 

I tried both. I already had a couple cans of compressed air and I went to Vons to pick up the dry ice. The thing about it is that you have to be patient. The effects for me were not as dramatic as the video but it looks better. I think the dry ice worked better, I heard a couple pings from it popping out. And sorry I didnt think about taking pics so I dont have any.

 

Did you heat the surface up with a blow dryer and then hit with the air or did you not heat it up and put the dry ice on??

 

I did heat it up with the blow dryer for both techniques.

 

i just wouldnt use it, my preference since i do body work...i understand how it works...but try it on a old skool car where the metal is as 5 times as thick as cars nowadays...wont work...but i dont have any dents in my car so im not to worried about using it, but if it work for you guys that are trying it, more power to ya.

 

Thanks

 

Tried it on my Impala and my Camaro. I didnt heat it up before putting on the dry ice, but it worked for the most part. Didnt take it all they way out but looks a hell of alot better. Im gonna try and heat it up first and see if it makes a difference.

 

You guys are crazy if you care about your car. "heat the panel and then apply -109* ice?" Metal and paint have completely different properties and doing this can cause the paint to lift.

You can also remove a dent by applying extreme heat to the dent. I've seen it done, but every time, the paint was discolored from being burnt. Not how I would treat my car.

A dent is a place that the metal has been slightly or severely stretched. In a slightly stretched dent, the metal needs to be worked and reshaped back into it's original shape. It's the same for a severe dent, but they require more work. The problem with these tricks is the lowest part of the dent comes up, but the dent will never be completely removed. To test the theory of how metal works, take a soda can, carefully push it in until it holds the dent. Stick a pencil eraser in the can and carefully push te dent out. The dent will "pop" out, but the can still shows damage in the areas that was holding the dent to begin with. The same is true for car metal. It's heavier metal so the damage won't look as extreme, until you look down the panel and see that it's now wavy. Metal works like a liquid in that it gets displaced when hit and creates a wave effect. The metal needs to be moved back into shape or you have the wavy panel syndrome or worse, low spots that look like someone leaned against the car. To remove the low, you need to find the high and remove it also or the wave is on!!!

 

I did it today and it looks fine. And I care very much about my car, if you think the method is crazy then dont do it.

 

im gonna try this with compressed air tomorrow on a small dent on my fender. ill take some pics.

 

tried to get some pics, couldnt really make out the dent. heating the dent with a heat gun on 6 for about 2 mins was enough to bubble the primer but it also got it to the temp so when it hit the air the dent pulled out. it took a few attempts but worked in the long run. cant say id try this on a nice paint job tho.

 

lol, I never saw that done without intentions of body work and repainting on top of it.

Also, what was up with that video claiming it was the same method as pdr, that just made the whole thing shout out

What do they charge, 50 bucks to push out a dent, why mess around with this crap?

 

Lol this is why I made my post, it's not dry ice that you're shooting at the dent, it's tetraflouroethane, which is -27F. The paint doesn't lift off if it's on there good. Also, while of course this doesn't completely remove the dent, not many people are going to look down the side of your car for dents. Even fewer are going to notice the waves. So for $3, a dent can be made much less visible, perhaps invisible to the untrained eye. That's $47 staying in your pocket (if the local shop does charge $50), which you can invest in fuel, ect.

Sure, $50 isn't a whole lot considering fixing a part on a car. However, quite a few members on this board are in high school or college, and that $50 holds quite a bit more value to someone who makes say minimum wage on part time, compared to someone who makes even $20,000 a year.

 

Amen Brotha'