Epoxy Primer Dry Time?

[AMXguy]

I shot the roof on my project yesterday with epoxy primer, it was about 60 degrees and I gave it an hour mixed before I shot it. this was mid day and the directions said not to use it below 50 degrees, I figured it would be dry before night and didn't worry much about it, now after a 26 degree night it's still soft enough you can leave a finger print if you push hard.

 Is this ever going to dry? I did lay it on pretty thick but I'm not sure what to expect out of this 2 part stuff.

[dutch]

are you sure you added enough hardener..?   My guess is it should have been dry way before midnight... 

[AMXguy]

Yeah, the directions said 50/50 mix.  it's been on the self a couple years, it doesn't go bad does it?

[torredcuda]

Paints do have a shelf life but are usually OK for a couple years as long as they don`t freeze.

[AMXguy]

In this country freezing is a normal temperature, and this has frozen many times, on enamel and laquer I've never had a problem but maybe I'm going to get a learmament.

 It does seem to be drying a little, I tried a spot and it's too late to take it off with thinner and it's too tacky to sand off so I guess I'll wait and see.

[mopardave]

I would go over the tech sheets, flash time is usually within 15 minutes at a high temp then cured quickly, other than that,
what material did you use? most of the epoxy primers i have use and what we use at the shop you have to use a reducer and a hardner, then the hardner has different types based on your temp being sprayed.
 

[wally426ci]

Dude, wpoxy really sucks to block with. I used it on my dads Cuda and even after a week it was gumming up the sandpaper. 

[AMXguy]

This is Nasson Ful Poxy, it says you can thin it a little with laquer thinner if needed but I didn't.

 I'm thinking I wish I'd have just stayed with my old standard primer.  it's pretty much dry where it's thin but where I heaped it on it will still make a finger print after 24 hours. I can tell it's never going to be a good primer to block even if it does dry.  I'm glad this is a long term project or I'd be ticked, well more ticked.

[mopardave]

epoxy primer or Etch primers are primarily used as surface sealers and should be top coated with an additional primer for blocking, epoxy is a bit@h to sand once it cure, but you may not have a normal primer.

[AMXguy]

That I did not know. I was using it for a high build primer and poured it to it, this might be part of my problem.

[Moparal]

I am in no way a body man. That is the area I always end up getting burned on. But this one thing I have come to know about primer before painting....If the primer doesnt set and cure for a long time and you paint your car to soon, it will shrink up and settle under the paint.

[AMXguy]

I thought about that, I'm just preping for a vinyl top that probably won't go on for a year or so , if it dries all the way I should be ok.