Painting process

Willy's Garage

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Just joined and spent the last three hours reading various posts hoping to find the answers to my questions.

I've got a 70 Suburban that I'm trying to restore. Patch panels were welded in and all the original paint removed with 80 grit sandpaper. Metal work was done and Evercoat Rage Ultra used in the low spots. The side under work right now (drivers side) had SPI epoxy applied over the entire panel. It's kind of tough to work on because it is such a huge vehicle but it't on a rotisserie so that helps. I'm trying to wrap my head around the next steps. The truck is going to be two tone, roof and lower body white and the main color blue. I'm planning on using base/clear on the outside of the truck and single stage inside. On the passenger side I used Omni epoxy primer and Nason 2K but the same steps. What I'd like to do is:
  • finish sanding the 2K on the body but I'm not sure what grit sandpaper to start with.
  • scuff all the primer applied over the past year. (door jambs ect)
  • sand the roof and apply the white final paint in base/clear (only because this will be much easier to paint on the rotisserie)
  • scuff the firewall and paint blue with single stage (the motors in these trucks are right up against the firewall. The motor and trans are already installed on the finished frame)
  • put the body back on the frame and check all my panel gaps and body work
  • paint the inside of the truck single stage blue
  • paint the truck blue base/clear
  • paint the lower body white base clear
I expect this process to take a while.

Questions:
  • when applying the SPI epoxy I didn't let it flash long enough. The area sanded well and wasn't gummy. Will this area be a problem? How would I know if I'm going to have solvent trapped?
  • What grit sandpaper should I start with after priming 3 coats of SPI 2K?
  • What does everyone think about my plan?
I've restored both of my Cougars but didn't do the final body work or paint. With this truck I'd like to do everything myself now that I'm retired.


Sorry for the long post and thank you in advance for any advise.

Paul
 
Oh where the epoxy was applied and I didn't get the flash time correct was a small 5" by 5" section and it sanded easily with 120 grit sandpaper before priming with the 2K
 
I don't think you will have a problem with epoxy..it cures, not air drys.if it sands easy, I would think your good to go. Sanding the 2k I would start at 180 >320> finish grit of 400-600 depending on top coat.
 
You will know when you block that spot of primer if epoxy start rolling up just take that spot down.
 
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