Leave cab in epoxy or 2K regular primer

[Csharko]

Hi everyone, need some advise, first time spraying epoxy, doing filler, another coat or two of epoxy and than 2K regular primer on a 72 GMC cab, my question is I have the initial epoxy done and the filler work done I will be spraying another coat or two of epoxy over my filler work tomorrow all within the 7 day window, my question is would it be better to leave the cab in epoxy or primer, I still need to get my doors on and aligned so it’s going to take me a bit before it all complete, just don’t want to miss my window if I should prime it.
I will also be doing the inside of the cab with SS black but that can be done later.

 

[1A Rock]

How long are you thinking it may be before you get back to it?

 

[dhutton01]

I like to leave my long term parts in unsanded poly primer. It has a tough non porous skin and no recoat window. Just sand and go when you are ready. Keep in mind some of the pros here don’t like poly. YMMV….

Mandatory backyard hack disclaimer inserted here.

Don

 

[Csharko]

How long are you thinking it may be before you get back to it?

I will continually be working on it but I don’t get much time just a bit on weekends, I have to figure out my doors and get them welded up epoxied and the gap them after install that will take some time, but I can work on block sanding when I get frustrated with the doors if I prime it I guess lol, just don’t want to create more work if I don’t have too.

 

[RosharonRooster]

i would spray epoxy over the filler areas and then spray the 2k primer 1-2 days after that. and leave them in the 2k. that way the 2k is good and done shrinking when the time comes to paint. amateur here.

i think either way is fine.

 

[Toolin]

So far I have been doing same as Bob and RosharonRooster on everything thus far on my project. So far after the final coat of 2K I would cure it in the sun for a couple of days and then set it aside for a month or two. My thought is it's actually better that way because if there's any shrinkage in the 2K it will be done before my final blocking.

 

[Csharko]

So far I have been doing same as Bob and RosharonRooster on everything thus far on my project. So far after the final coat of 2K I would cure it in the sun for a couple of days and then set it aside for a month or two. My thought is it's actually better that way because if there's any shrinkage in the 2K it will be done before my final blocking.

Ok so Sunday is my 7 day window if I spray epoxy on everything to cover filler and spray the whole panel with a couple coats I should have another 7 days to get my crap together and spray primer correct? I will need to seam seal before primer as well, the only thing is my weather, it’s still winter here and getting it out in the sun is not an option so it will have to stay in the shop nice and toasty, is that a problem?

 

[Csharko]

I like to leave my long term parts in unsanded poly primer. It has a tough non porous skin and no recoat window. Just sand and go when you are ready. Keep in mind some of the pros here don’t like poly. YMMV….

Mandatory backyard hack disclaimer inserted here.

Don

Thanks dhutton, I already have the SPI 2K primer so I will have to go with that.

 

[Toolin]

Ok so Sunday is my 7 day window if I spray epoxy on everything to cover filler and spray the whole panel with a couple coats I should have another 7 days to get my crap together and spray primer correct? I will need to seam seal before primer as well, the only thing is my weather, it’s still winter here and getting it out in the sun is not an option so it will have to stay in the shop nice and toasty, is that a problem?

No, not at all. Putting it out in the sun is optional and you can do it just prior to your final sand. I just do it for good measure. I am a beginner so If anybody wants to correct me on something, please do?

Edit:
DUH! I didn't realize others were speaking of leaving things in poly primer. What I said about leaving panels in 2K primer. It's just the way I've been doing it.