The Ultimate Heat Shrinking Video
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- Опубликовано: 23 янв 2025
- This video highlights the proper way to heat shrink metal. This was the industry standard and the way the old-timers did it using an oxygen acetylene torch. It's important not to use a propane torch to heat the metal. You can heat shrink without a shrinking hammer too.
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I live in a western desert of Utah and am 71 years old. My shop has a gravel floor and I don't have a lot of facilities but do have a lot of tools. I'm trying to preserve a family 63 Chevy Biscayne 2dr sedan that has been sitting on the farm for 50 years. If I lived close to civilization I would take some body shop classes. Under my circumstances I relay on videos like yours to get the job done. 35 years ago when I lived in the city I restored a 69 VW bug. I was able to take welding classes and had help on the project. You have helped me tremendously on this project and I will watch your videos many times. Thank you.
Thanks for your kind words. Good luck on your project. Those early 60’s chevys are some of my favorite body styles and it’s cool that it’s been in the family for so long. Thanks again
So cool, keep up the good work. I live in Alaska, been doing PDR and paint repair for car Dealerships for 25 years. 😊
Man, I've been waiting for awhile for someone to put out a no bullshit video about doing this.
Thanks for watching
Very well done! First job was a body shop apprentice 1964. Thats the way the boss did it.
My dad passed away little over 2 years ago he was a body man for 50 years I was using a propane torch watching you is exactly how my dad did it your video helped me remember going to help me with a job I'm doing
Sorry about your dad. I’m glad the video helped you and thanks for watching
@@autobodytrainingsolutions838 thank you
This is the way I learned in 1958, from a body man. Worked great,
Very educational. I've never been able to do deliberate damage even to show it can be undone.
I come to this video just about every time I have a panel I need to shrink. Thank you very much
Thanks for watching
When I was a teenager I worked in my Uncles Bodyshop and he specialized in Buick cars and the sheet metal was huge on those Electras and Park Avenues of the 70s and any time we straightened a panel we had warpage and distortion and we always would use this method to shrink the metal....it works and I do believe its a lost art form.
Unfortunately today’s sheet metal can’t be heated like that but it sure was necessary back in the old days. Thanks for your comment
@@autobodytrainingsolutions838 Can you explain why it is different now?
Excellent video, just the way I was taught by my Tradesmen, back in 1977, that's just how we were trained, cheers again for the video, *****
That’s about the same time I was in trade school. Hard to beat old school. Thanks for watching
When done correctly, as you explain, it's also great for correcting rippling warpage of flat panels resulting from welding them at the seams, like machinery covers and suchlike. In this case, (2D ripples, rather than 3D domes like you get with car body panels) it is best not to use the hammer at all. You often see this used at the factories where railway carriage side and roof panels are built. The edges are all shortened because welding them into the job causes the same shrinkage (by the same mechanism) as flame straightening. So they do a matrix of spots all over the panel except along the edges, to shrink it as well, so it goes back to being flat.
Shipbuilding is another case where (say) the decks are built up of welded panels which have almost no curvature, but they still have to be flame straightened after welding.
Thanks for your comment. I think you know more on this subject than I do. Great explanations and examples. Thanks for watching
That is exactly how my dad taught me how to do this. Thank you. Great video Sir.
He sounds like a smart man. Thanks for watching
I used this technique on the grills of an old 1939 John Deere Model B tractor. The originally flat sheet metal was oil canning. Worked great. Thanks for sharing a lifetime of knowledge and experience.
Thanks for watching
@@autobodytrainingsolutions838
If one hits the center and then works the perimeter....is that incorrect ?
As a 42 year old journeyman iron worker who is starting a new apprenticeship in auto body and with a strong love of the old school stuff, let me thank you wholeheartedly for sharing your knowledge!
I would imagine this is still a solid method when working on the old school stuff or anything prior to say 1990's?
keep up the great work on this channel! cheers.
Good luck in your new career. Some of the old ways aren’t applicable any more but many of them are with certain limitations. Lots of new stuff planned so keep watching. Thanks
Thanks a bunch. It seems like I've been searching forever to get some information on how to do this.
Glad to help. That’s what these videos are all about.
God bless you Man :) I just solved a big repair problem with these steps
Much appreciation, I live in Alaska, been doing PDR and paint repair for car Dealerships for 25 years. It's a good living. 😊
Heat Shrinking 2.0
ruclips.net/video/2HtPq3TPcCM/видео.html
Here’s the link to my updated heat shrinking video. You’re correct about being able to make a good living in the industry. Too bad not many people want to get into it now. My wife and I visited your beautiful state a couple years ago. Can’t wait to go back. Thanks for watching
Thank you. You communicate very well.
thank you I was going to make some big mistakes.great presentation.
Thanks for your comment
Great video! Thank you!
Greg, thank you for showing me how the pros do it. I was going to attempt to get a dent out of my car as a DIYer with very little experience. Your videos helped me confirm that if I want good results, I need to trust the professionals. Bodywork is an art and an acquired skill.
You’re correct. Anyone can do it with some patience, guidance, and practice. Thanks for your comment
Thank you it's good to see the old school gets the job done helped me a lot Cheers
Thanks for your comment
I am sure there were high schools that had shop plus tech trade schools. Did have shop class because there wasn't any. Trade schools were 60-80 miles away so I had to wait 52 years for this video and RUclips to be invented.
I just wish Al Gore had invented the internet sooner! Good, straight forward info using a torch to allow metal to move...the right direction and know! Thanks!
DK, Omaha.
Thank you so much! Struggling with a project and really needed this🙏
Glad these videos can help
Nice upload Sir. Very informative.Your knowledge and experience is very much appreciated.
Keep informing the people...
Thanks for the watching
Haven't seen you since MS, 100 years ago. God Bless ya Greg. Look healthy bud. Doing a good job. I like your videos.
Hey Mike. It has been 100 years. Take care and thanks for watching
Really appreciate the reminder 😊
thanks for the info...I always in the past used a propane torch and when I got done I had a bigger mess than when I started...will try this method out tomorrow on my 34 chevy fuel tank cover that I had to make some patch panels on and now have a few lumps and bumps that need to be shrunk back into place
it's funny how you think you know how to do something, until you watch someone that actually knows what they're doing. i'm restoring a 65 442 convertible and let's just say, you're videos have really helped. now lets see if i can get my over stretched metal shrunk.
Thanks for taking the time to comment and for watching
A great explanation, thanks for the tips mate 😀.
I have an updated video on the same topic that came out recently. Thanks for watching
excellent video and absolutely correct for bodyshop shrinking. There are new ways (techniques) of doing this without even taking the paint off (PDR) it would be great if you have time to take a look at my Mokka repair I did recently and let me know your thoughts. Ive subscribed to your great channel too.
Just picked up that book on thrift books!
What’s the name of the book?
@@Lilevad The Principles of Auto Body Repairing and Repainting 2nd Edition.
This works especially well when you can't get a dolly behind the panel.. or have left your oxy-acetylene set in the oxy-acetylene shop.. in cases such as that, the theory goes out the window & you grab your map-gas torch, a wet rag and work in tight circles... which does the same thing, erm, just because. But it's nice to know what "The Ideal" is, none the less. Good video.
Great instruction, thanks! What is the title of the book you show at the start? I would love to find a copy.
The principles of auto body repairing and repainting. It’s still available. It can be found on Amazon
Here is a link to it on Amazon, it is the newer updated edition - amzn.to/35oEZaK
Great video ,donit that way for years!!!!
Nowadays a panel beater(sptiznagel or dentfix or whichever brand you like) with a shrinking tip gives a nice controlled shrink but it's not something that's available to the home gamer. I haven't shrunk steel with a torch in well over 10 years at this point. Still this is good material and shows basic techniques and principles, as a professional I approve.
Thanks for your comment
Good tested and true old school method. Maybe if you could get your hands on a panel beater or a carbon shrinking tip you could make a video on that? I tend to use the shrinking tip on the panel beater, it’s a slower shrink but very controllable.
You’ll have to let me know what a panel beater is. I may know it by another name. I’m looking for a shrinking tip for my stud gun to do a video on that. Good to hear from you. Thanks for watching
@@autobodytrainingsolutions838 there’s a few, dent-fix makes a nice one. It’s the machine that came after stud pullers. The one with a reusable tip and a pull bar with wiggle wire attachments . But if you can get a shrinking tip I imagine it’s gonna be very similar
@@Grimsaviour Thanks I’ve used the Car O Liner brand resistance welder and it had the dent puller attachment that I really liked.
Great info and techniques..
Question: I understand not using the propane alone, what about it being used with oxygen?
I use that instead of acetylene. Can this work?
I haven’t tried that but as long as it has high heat and the flame is small like the brazing tip on the oxy acetylene torch it should work. Thanks for watching
@@autobodytrainingsolutions838yes it does...thanks alot!
What about cases were you don’t have access to back to use a dolly?
Then this procedure won’t work. You’ll have to figure out another way or replace the panel. Thanks for watching
You got it RIGHT !.... WELL DONE ! I do those shrinks even smaller and cooled a lot faster, in 50 + Years of working with metal and repair damages , it NEVER let me down . Just think of those poor guys using shrinking disks or other methods ....I feel sorry for them , and by the way...those shrinking hammers that you mentioned, are only good to tenderise steaks !
Good to know there’s still some “old timers “ around that know how it’s done. You’re right about the shrinking hammer. Next step is to cook the steaks with the torch. Thanks for watching
what about where you can't get behind the panel and it's a smooth indentation quite large ?
The panel has to be raised out. If no access to the back side than you could use a stud gun and slide hammer to pull it out. Here’s a link to my video on this
Pull Rods vs Stud Gun
ruclips.net/video/yMZTbdkIrmE/видео.html
thanks for the great video. I don't have the torch you have, so my question is can use a stud weld instead?
Heat Shrinking With A Stud Gun
ruclips.net/video/a9TB7r5ely0/видео.html
Here’s a link to my video. Thanks for watching
Where did u just throw the lit oxy acetylene!!
I set it on top of a 5 gallon bucket with water in it. Thanks for watching
I'd like to buy that book, trouble finding. Anyone know its ISBN or other specific info to help find and buy? Is there a newer available book with same content? Thank you!
Does anyone know the name of the book? I’d like to buy a copy as well!
The Principles of Auto Body Repairing and Repainting@@Hawkmoon_269
I would like to know the Title of that book , if you don't mind , I am never to old to learn something new Frank T
The Principals of Autobody Repairing and Repainting. I don’t know if it’s available anymore. Thanks for watching
Excellent video!
Thank you for sharing this video
What about using a stud gun w a heat shrink tip?
I’ve used them a few times and they will work in certain situations but you still need to know how to shrink with a torch 1st to avoid problems with the stud . Thanks for watching
What was the name of that book in this video?
Heat Shrinking 2.0
ruclips.net/video/2HtPq3TPcCM/видео.html
Here’s the link to my updated video on shrinking where I show the book in detail.
You’re correct about vehicle frame measurements data being available but in the case of a home version or even in a shop, measuring this way you are comparing side to side and making sure it squares correctly so your numbers just need to match. Thanks for watching
😎👍 I will try it . Well I have to working on a Vw with the can issue
Good luck. Thanks for watching
just purchased a volkwagen passat for 25 hundred. 5000 miles on it a clean title. from the center of the windshield to the center of the back glass it had a pole fall on it. no broken glass. kinda deep valley though. Use this technic or pull the glass and re roof it?
Could a TIG welder work just as well as OxyAcetalene? I'm thinking it may be safer when putting it down and grabbing the hammer.
I can’t answer that. I don’t have any experience using a TIG. If you try it let me know. Thanks for watching
I use my stud welder, with no stud, press down pull the trigger let off spray... shrinks like a piece of cotton.
Good afternoon Gregg, you are the first instructor to reveal the proper procedure for removing oil canning. I have seen so many people not raise the oil can up prior to heat shrinking and just as you say it is concave beyond saving it. What was the name of your instructional manual that you used in trade school. I am never to old to learn. Thanks for another excellent video. You take care and have a great Memorial Day weekend.
The book is The principles of auto body repairing and refinishing. Glad you liked it. Thanks for watching
@@autobodytrainingsolutions838 I have a '59 F100 I'm working on and I've been trying to scrounge old school books on how things were done back in the day. Who was the author of that book? I have a copy of a book dated 1972 with an almost idetical title and I wonder it it's the same book with just a different printing date.. Your video is very informative and helpful!
Hi Greg what is the name of that book you showed?
The Principals of Autobody Repairing and Repainting. I don’t know if it’s available anymore. Thanks for watching
I FINNALY found out the name of what I caused.oil can!
Door with 6 inch gash/pushed in 1/4 inch
I barley got a dolly inside hammered with several hammers.
I wonder if heat would change it.
It pushed right back in/as u know/
With less crease but 7 inch bubble!
I though /crap /if it'll stay in allways/I'll fill it!
Thanks
Thanks for watching
I hope you still monitor the comments section because I have a few question: First, since I can be kinda frugal in some cases, wouldn't a propane/oxygen mix torch do the job? Second, would you increase the heated area when working thicker gauge metal? (I want to shrink the top of a moderately large job box that is dished in and collecting rainwater.) Third, because I am not concerned with achieving flatness--some doming is actually desirable for watershed--if I slightly domed the lid first by closing it on a prop stick, would the metal set in that position if heated over a large area and then quenched (with or without hammering), or simply allowed to air-cool?
I appreciate the content and might check your library of videos later to see if you have demonstrated lead-filling (I hate Bondo)!
I don’t know if a oxy/propane torch would work. Only one way to find out. You would need more heat due to thicker steel will dissipate the heat quicker. On trying to keep a crown on the metal, propping it up and applying heat should work. Let it cool naturally as cold water would shrink it . Better chance of it staying where you want it without quenching. Sorry but I don’t have any leading videos . Thanks for watching
@@autobodytrainingsolutions838 It is very nice of you to reply, and unexpectedly quickly too!
I had a feeling that allowing natural cooling might be the way to go for my unusual application. I appreciate your input--thank you.
Here's a bit trivia that you might enjoy:
More than thirty years ago, I worked a one-year, temporary appointment as a shipfitter at Puget Sound Naval Shipyard in WA. A young man, mid to late twenties I'd judge, in my shop was a talented "flange-turner" whom I observed straightening structural steel elements with a torch one night (swing-shift). I can't recall if it was while talking to him or while discussing his work with another coworker years later (the latter situation I believe) when I learned that the graceful arcs of the legs of the Seattle Space Needle building were produced by plying torches to distort the metal. Here's a quote from an article about the construction: "To pull off a similar feat for the Space Needle, foundry workers heated pie-shaped sections of the leg beams. As these sections cooled, the steel constricted, with greater contraction at the wider parts where the heat was applied, making the beams curve."
Very interesting. Heat + metal can to unexpected things.
Is there any chance i can get the title of the book? Thanks in advance
Heat Shrinking 2.0
ruclips.net/video/2HtPq3TPcCM/видео.html
Here’s the link to my updated video on shrinking where I show the book in detail. Thanks for watching
Thank you I appreciate it
I use an oxy/propane set simply because of the cost. Would that be OK? Acetylene bottles are outrageous and for what I do propane is usually just fine
Heat Shrinking 2.0
ruclips.net/video/2HtPq3TPcCM/видео.html
Here’s my updated video where I compare an oxy/acetylene torch with a propane torch. Thanks for watching
@@autobodytrainingsolutions838 thanks love the videos
That's what I called educational thank you for sharing your knowledge whit me
Thanks for watching
Hi , your work is so good 😊 Can You show me book 📕 name Please 🙏 ?
The complete guide to Autobody repairing and Repainting. I don’t think it’s available anymore. Thanks for watching
What is the name of the book?
Heat Shrinking 2.0
ruclips.net/video/2HtPq3TPcCM/видео.html
Here is an updated video that shows more details. Thanks for watching
Good job. So you don’t use a disk?
Thanks for this video. I have a spot the size of a softball in the middle of my hood that oil cans up and down. Seems to favor the low position more. Trying to figure out if it can be repaired correctly. 1968 Mercury Cougar.
Hoods are tricky as there is so much area for the metal to stretch. It needs to be worked in multiple locations without making it worse. I wouldn’t attempt to heat shrink a hood unless you’ve done this procedure quite a few times before. Hoods are very prone to over stretching even when done by experienced techs.
Legalsan , I totally agree with him , you can get into serious trouble shrinking a spot on a hood , if your not careful it will get away from you Frannk T
Would a butane torch with the small nozzle?
work?
I don’t think so. Just not enough heat. Thanks for watching
Are you using covex or concave part of dolley on backside and hitting directly over the dolley? Awesome by the way
You must use a flat side on your dolly. Thanks for watching
@@autobodytrainingsolutions838 Thank you so much for the schooling.
Can you tell me the name of book
The Principles of Auto Body Repairing and Repainting. I don’t think it’s available anymore but maybe you can find a used one. Thanks for watching
Thanks for your reply .. you are a great man ...
Man that was cool 👌🏻
Have a roof with huge oil can, how do you fix that, can’t get to underside?
That’s a tough question to answer. It’s possible to do one sided heat shrink without a dolly but I wouldn’t advise it to anyone without years of experience. Why can’t you get to underside?
Roof has a double wall. I never received your answer to my inbox. Wonder why?
We can use propane torch on alu panel?
I’ve never tried it on aluminum. I wouldn’t recommend it. Thanks for watching
Hi, great video! Are you using hammer on dolly when you're striking the heated area and then center?
Correct. Hammer on dolly when shrinking. Thanks for watching
How do you think using a shrinking disc compares to this proceedure? Thanks!
I’ve never used one so I don’t know how it would work. Personally I don’t think they would be effective but I could be wrong. Thanks for watching
Will this work with aluminum sheet metal as well? Im working on a boat and the transom is warped pretty bad
It won’t work on aluminum. Sorry I couldn’t help. Thanks for watching
Indeed it doesn't. My understanding of the reason is that aluminium is just not strong enough to fight the sideways expansion, also it has too low a melting point, and the heat is conducted away from the spot much faster than with steel. The method relies on a very sharp difference in temperature of the spot vs the surrounding metal@@autobodytrainingsolutions838
im sure it didnt pull the pillars inward.
What that book name
The Complete Guide To Autobody Repair and Repainting. I don’t know if it’s available anymore. Thanks for watching
Great
Thank you for once a tradeperson or craftsman showing the right way not using tones of crap over the repair the way we were shown how by tec teachers
Great info…..
What book did you have??.
The Principals of Autobody Repairing and Repainting . It’s still available on Amazon. Thanks for watching
This is not a DIY video. Most people don't have a torch like you have but most people do have a propane torch which just as good if you set the flame correctly, (getting the smallest, hottest flame you can), and a pick hammer to hit a couple of times at the ctr. of the heated spot. Than, quickly cool it down. I use iced water with a rag.
You are correct. This is not a DIY video. My channel is aimed at technicians working in body shops to show correct procedures to get the job done correctly and to be more efficient.
That’s different from the way I was taught. Maybe that’s why it never worked for me
It’s always worked for me. Thanks for watching
Lost art for sure
😎👍
nevermind. great video. Im gonna re roof it.
Probably the best choice. Thanks for watching
👍👍✅🚗
about the only place you can get a dolly behind the metal is a fender. maybe get lucky on a quarter panel (gotta have long arms)