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Author
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Topic: surface prep
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nash
Journeyman Posts: 61
From: Nashville, TN, USA
Registered: Nov 2000
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posted 09-04-2001 12:08 AM
   
I need advice on when and how to strip old paint off car and when it is necessary. Is Chemical the way to go or is it best to sand it. I would like to do this one panel at a tiem so I am leaning to sanding but not sure.Thanks for all the help
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Fastback68
Gearhead Posts: 874
From: Sucat, Paranaque, Philippines
Registered: Jul 99
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posted 09-04-2001 05:16 AM
I'm no expert, but I think you'd have a hard time doing the whole thing by sanding unless you've got some military hardware. I go (1) paint stripper, (2) washing down with soap and water, (3) sanding, (4) rust converter - if necessary, (5) more sanding if you've just done the rust converter, (6) washing down again, (7) primer.
Simon
P.S.: The paint stripper is good at getting body filler off as well.[This message has been edited by Fastback68 (edited 09-04-2001).]
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mellowyellow
Gearhead Posts: 4608
From: So. Fl.
Registered: Aug 2000
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posted 09-04-2001 01:19 PM
If you are only doing one panel at a time, I think I would go the chemical strip route. I'm assuming your car has a lot of paint on it-most of them do when they get past 30. A panel at a time is easy to apply, clean off, and treat prior to a primer. Also, it's easy to clean up the mess that way. I hate stripping cars, but have done a few. I always worked in sections for the control. Also, having a whole car immersed in remover is an impossible task, and gets out of control. With a couple helpers, it's different. I helped a guy strip his 67 Mustang, and he had three experienced people including himself. His wife kept us in cold drinks and it was completed on a Saturday.
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cynot65
Gearhead Posts: 855
From: New York
Registered: Apr 2000
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posted 09-04-2001 07:35 PM
nash, That's exactly how I'm going to do mine, one panel at a time and I'm going to sand. I'm not big on chemicals AND I have the entire winter to do the car so it'll be ready for paint by Febuary. I'm not going to do the complete body work. I'll be doing the "prep" work so to speak. The body guy I found told me that every hour I put into the car will save me $200 an hour. The way I see it I've already saved myself well over a grand. I have used the wire brush attachment for my grinder on the body filler areas. It takes more time and muscle, but to me it's worth it plus it's a really good way of losing myself in the work. When using that attachment you really must pay serious attention to what you're doing and that lends itself to thinking about nothing else but the car.
Tony C*
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nash
Journeyman Posts: 61
From: Nashville, TN, USA
Registered: Nov 2000
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posted 09-04-2001 10:06 PM
I am also thinking about doing it one panel at a time and also by sanding. What type of grinder are you using? I am not sure if a DA air tool sander or electrical orbital sander would be best or how that scotch brite looking wheel that 3m sells would work on the end of a drill. What type of primer are you putting on the metal after sanding and how long till you try it.
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Harrys'65
Gearhead Posts: 338
From: Saint Paul, MN
Registered: Sep 99
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posted 09-04-2001 11:20 PM
Nash,
Be very careful if you use an electric sander, it is easy to heat the metal and warp it.(I know...  )
My advise is to see how many coats of paint are on the car. If more than 2 colors(top coat over another color) you will have a hell of a time sanding it all. You will need to use chemicals.
The 3M wheels are good for small areas, but will take you forever to do a whole care with them. I use the black ones for tough materials(they can scratch the metal so be careful) and the red ones for easier jobs.
I did my whole car myself with chemicals, it took a long time, but wasn't too bad. I would do it again. You will have to DP sand it after the chemical strip to get some spots, so get one if you don't have one.Harry
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Harry Straub
'65 Mustang Coupe
http://www.harrystraub.com/resto.html
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