Restoration Gone Bad - Need Your Expert Opinions

T

Thunderhead

Ok guys, I have a challenge for you. Please provide your thoughts on helping me get this straightened out. 10 or 12 years ago, the car had been stripped to bare metal by sandblasting and had received a coat of DuPont Variprime and a coat of DuPont Primer (I don’t remember the exact primer) and then the car sat inside of my shop (never put outside). About three years ago, the car was taken to a body shop to complete the once started paint job. The shop worked on the car on and off but the shop had to close and again the car was never finished (still never sat outside). The car still has the variprime/primer on the roof, outer trunk, L. door and left rear quarter. The R door and R quarter have been stripped back to the bare metal and is in that current state. The body shop repaired the front fenders and have been repaired/block sanded/guide coat etc… and currently have PPG epoxy with Ever coat primer G2 and are in great shape. Now the car is back in my hands and it’s time to finish this project once and for all. I plan on using #6600 series epoxy after stripping the roof, L. door, L quarter and trunk back down to bare metal. I’m lost on what to do about the following (mostly because I don’t want to put the car back through a sandblasting process) please provide your expert opinions on the following:
1. Front fenders: (really don’t want to re-strip, right one had extensive repairs done to it)
2. Door jams, hinges: (how in the world do I remove the primer in those nooks and crannies without blasting it again?) or is there another option?
3. Underside of trunk (was never blasted and there are a lot of openings to try to remove remaining paint):
4. R Quarter has very small surface rust blooms as if it received a splatter of water. Roughing with 80 grit should remove, does it need something else?
5. All the dash area had originally been blasted and is still wearing the DuPont Primer (lots of nooks and crannies here also)
6. I am going to replace the hood with an aftermarket. Not sure what to do about the underside of the new hood to prep for 6600 epoxy, again, how are you removing the primer for the epoxy to adhere in the openings?
7. If I have to strip all of the nooks and crannies by mechanical means other than sandblasting, is there an acceptable amount of the old primer that the 6600 series will adhere to?
Thanks in advance
Don M
 
Alright, let me see if I can narrow it down to my main concern:

I have two fenders that have been repaired and epoxy coated with PPG epoxy and everlast primer. Will SPI epoxy work as a sealer over this combo?

Thanks
Don
 
Hi Don,
Its difficult to say conclusively without seeing some pictures of what you are looking at. My concern with leaving a car in primer (other than epoxy) for long periods is moisture absorption and other contamination.
If it were me I would strip the car and start over so that I know what is on there and the condition. I can say that SPI epoxy is pretty incredible stuff and will seal most anything that is properly prepared but it will be adhering to what it is sprayed over so your final bond is determined by whats under the epoxy.
 
A lot of self etch primers should not be used over sandblasted steel but I don't see any warnings in DuPont's tech sheet: http://www2.dupont.com/Coating_Solutions/en_US/assets/downloads/tds/TDS_625S.pdf

It's tough for people here to advise on whether or not to trust the work done by? and how?

You can be safely assured SPI products will go over and adhere to any properly prepped automotive primer or paint but the performance can be compromised by what it's being applied over.

Evercoat Everlast primer is an acrylic lacquer, I'd take it all off if you want the job to last.
 
imo i would strip and start over. just about everything that has been done is wrong . as for varaprime i hate it .
 
shine;27366 said:
imo i would strip and start over. just about everything that has been done is wrong . as for varaprime i hate it .

This is the only way
 
Thanks all, I guess I knew the answer but really didnt want to admit it to myself. I really trust the opinions of ones here on the board.

Thanks again
Don M
 
I consider myself someone that has been around several restorations and/or over all paint jobs of good quality but this one has just been a thorn in my side and to think what the bare metal has been througn really has me concerned. I cant wait to chalk it up as complete....if they are ever complete. Thanks again
 
Once in a while I still get roped into painting a rig that our shop has not stripped, and every time I swear it will be the last. Someday I will learn, every day I get better at saying no!
 
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