Primer Success!!! (Long)
Well, I finally laid down some NASON 2K Urethane primer today. That was the messiest, most nerve racking, yet Fun thing I have done. I have never used an auto spray gun before, so there had to be a fast learning curve. I spent 8 hours just masking off the truck. inside and out, then I etch primed, then I wiped off with grease/wax remover, then got ready to prime. mixed 4:1, poured in the cup, and got after it in the truck bed to get used to the gun.
The cheapo gun I have has an aluminum cup, but it leaked a couple of times when the cup was full. so the flat surfaces (truck bed floor, top of cab etc) had to be done when the cup was half full.
I was using a flat horizintal spray pattern because I didnt know how to adjust the pattern, but finally figured it out.
I used one gallon (plus reducer) and wasted about 8 oz of finished product because it set up in the container. Man t hat was fun, but my back is killing me. I spent so much time in getting the truck prepped that I started to doubt what I was in for. Now I am happy I spent the time, fixing dents, floor pans, stripping the interior etc.
I have a few questions now that I have the primer on:
1. How long can the truck stay outside with the Urethane Primer?
2. I wont sand untill I know I can shoot base coat soon after, so should I cover the truck with a truck tarp? I saw one on ebay for $50.00
3. Is this Urethane water proof?
4. Why do bugs like a nice finished surface? LOL They all came out to relax once the primer dried.
5. Are all paint cups (HVLP) standard size? I would like a can with a more secure lid so there arent any leaks.
Thanks for reading if you made it this far.
Last edited by Hannibal; 05-13-2006 at 11:38 PM.
If you want your car to sit outside then you want epoxy primer. As far as I know 2k urethane is not moisture proof but is easily sanded. That is why I plan on using epoxy first to seal the bare metal and then apply a urethane high build to sand.
If you are going to cover it up it should be fine.
The cups are usually different on different guns. You should try to get one made by the manufacturer of the gun. Many inexpensive guns don't have parts available so finding a cup my be difficult.
If you're going to cover the car be sure that the cover won't trap moisture between the cover and the surface. This will cause moisture go through the primer much more quickly.
it has actually rained already once on the truck!! I have a friend coming over to help me get it ready for paint. We have 7 days of sunshine coming.
Is it going to be ok that it rained on it? We got maybe 1/10"
It will be fine. you are going to be sanding off alot of primer anyways.
I also need to shoot a little more primer in the bed. I will just wipe it down claen and I can reshoot? Any problems doing that?
It was my first time using a gun, I was more concerned about covering entire truck inside and out, and wasnt able to do enough in the bed.
Also a few thin spots on door edges etc.
Please reply, and thanks for input!!
You want to sand any areas you want to reprime before you reshoot.
what grit? Just rough it up?
If it is rough 220 if it is fairly smooth 400.