Removing undercoating on the frame

[Claude Edwards]

Hello folks. I am working on getting my frame ready to go to the sandbaster. I would like to have some input on removing the old undercoating now that I have everything off the frame. Where it's brittle it comes off with little effort but most is just hard and stuck fast. My sandblasting guy says its best to heat it up with a torch and scrape it off which works OK but is a little tricky in some areas. I don't mind the extra time it takes, I just want to know I am going down the right road. Anyone have any input or experience getting undercoating off. Thanks

 

[Tom Bryant]

It's a lot of work no matter how you do it. I think the heat method will get the most off without gouging the frame too much. Solvents would have to soak for a long time but may be the best way to get the residue that the heat left behind. Wouldn't a big tank full of heated solvent be great?

I wonder if those Ready Strip places could strip a frame of it's undercoat?

Tom

 

[Sting Ray]

I would try a 3M "dog biscit" the nylon paint removers that chew themselves up as they go on a drill, or even a wire wheel.


Tom McCabe

 

[matchframe]

I am prepping my '78 frame to go to the powdercoater. If you are not trying to maintain NCRS standards, you might think about having the frame powdercoated. While there, they can dip the frame to remove everything down to the metal. I was quoted $325 for the powdercoating which includes bead blasting. Add $75 for a chemical dip. Just a thought.

Bill

 

[Ol Blue]

In a body-off restoration of a 64 Corvette, I used a heat gun and a scraper which worked very well. Then followed up with WD 40 and a stiff brush.
I agree on the powder coating, I've used that on two body-off frames and am very satisfied with the results. Of course, it won't meet NCRS standards.
Ol Blue

http://www.hayco.ca/images/usa1.jpg

 

[Claude Edwards]

Thanks folks. Going to try the heat gun first and follow up with rough scrubber and solvent to go after the left over. It would be nice to be closer to a ready strip place. I am interested in the powder coating sounds like a good way to go. I appreciate the input from everyone.
Claude