restoring my 86 GN--cleaning the frame

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ponyetr

Member
Joined
May 30, 2004
Messages
156
Hey guys, I'm restoring my 86 GN, and want to send the frame to powdercoating. The guy asked me to clean the grease off of it. Anybody got any ideas for this??? I used degreaser and a pressure washer, and it didn't touch it. Also been using grinder and wire wheel, but the wheel gums up too quick. There's gotta be a better way...
 
Or you could try Simple Green, just dont dilute it by mixing with water.
 
Hi you can buy this degreaser called Marine clean it is sold on the Por 15 website this stuff works real good i used it on my front upper and lower control arms when i painted them hope this helps..... :D
 
Try oven off oven cleaner.........just don't get it on a painted surface........
 
cool...I'll give a couple of those things a shot and see what happens. Thanks guys.
 
ponyetr said:
Hey guys, I'm restoring my 86 GN, and want to send the frame to powdercoating. The guy asked me to clean the grease off of it. Anybody got any ideas for this??? I used degreaser and a pressure washer, and it didn't touch it. Also been using grinder and wire wheel, but the wheel gums up too quick. There's gotta be a better way...

Are you sure it's grease and not undercoating? Degreaser and a pressure washer will not take undercoating off and undercoating will gum up a wire wheel. A torch and a putty knife gets undercoating off.
 
use aircraft stripper.It will take to to bare metal.I just paint it on and use a paint scaper.Since your car is off the frame it wont be to much work.I would try to spray the stripper off with pressure washer.
 
I used a plastic putty knife to scrape the caked-on grease off my frame. Then wash with dishwashing liquid and hot water. Don't flush the dirty water into your septic tank or storm drain! It is generally ok to flush it into the sanitary sewer. The powder coater should clean (pressure blast or chemically strip) the frame in preparation to the painting process. He probably doesn't want to deal with a bunch of grease. We all know that our Buicks don't leak engine oil or power steering fluid.
Conrad
 
The frame was originally coated in black cosmolene. Over time either gas and other solvents will wash it off and it will start to rust or it becomes petrified to the metal. I would do it right and send it off to be media blasted. Just about every major area has a place that does this. Around my area it cost about $150 and it's usually a 1 day turn around. Drop it off in the morning and it's ready by the end of the day. Or you could really do it the right way and have it chemically stripped. That would get rid of the rust inside the frame rails. I also have a place in my area that does this. And you can leave the suspension hooked up to it if you want to save some cash. The process doesn't eat away any rubber or plastic. The down side is that it cost $750 and takes a week or two. I did a frame in my drive. It was to time consuming with my little Eastwood sand blaster. I used black epoxy to finish it off. I'm thinking if I ever go for the full restoration 100 point car I'm going to try and duplicate the black cosmolene look. I have'nt been able to find the correct stuff but I have some MC chain wax that comes very close. Here is a pic of my 455 Regal frame.
 

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very nice pic...hope mine looks like that. The guy doing the podercoating also does sodablasting...he did the body of the car, and turned out awesome. I talked to him today, and he suggested taking it to a car wash on the trailer, and pressure washing off the heavy deposits, and then cleaning the rest up with some mineral spirits or stripper.
 
There is an expensive but best way.

There is a paint stripping process that will also work for ur need. Theres a form of chemical stripping that can be done where the entire frame is dipped in a huge tank of an acid like solution, for a few hours. when the process is done the metal will look absolutely brand new. I had this process done to the body of my 67 GTO in my sig and although it was costly it was welll worth it considering that every lil hidden spot has been stripped of surface rust, old paint, and grease. There are some areas in that frame that will be tuff to get to with sandblasting or similar process. The name of the place that I went to is Redi-strip in Roselle, IL. My search engine isnt working on my computer so I dont know if they have a web site.
 
Roselle is within a couple of hours from me...I'll give them a call. Thanks a bunch!
 
wasnt sure where ur at...

ponyetr said:
Roselle is within a couple of hours from me...I'll give them a call. Thanks a bunch!
If u cant find them, I will find the number for you, let me know.
 
when I cleaned up the nasty engine compartment on mine, I used "gunk" engine brite and a power washer. DOn't get scared to get down on that thing and get dirty. Hold the nozzle about an inch or two away from it and it comes right off. For having a little surface rust and faded firewall paint it looks way nicer than before. Oh yeah don't use the high pressure nozzle, so strong u can write your name in the driveway!
 
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