Monk

iTrader: (3)

Also, how warm was your shop? If it's colder in your shop than the temperature range of your hardener, you are going to have a bad time.

Kricket

I do need to adjust the gun. Used the nicest one from harbor freight [the one where the gun and can are separate] and a 30gal compressor. I did clean the gun thoroughly before painting and did strain it when putting it in the can. I set the pressure to 50 on my compressor and verified on the gauge on the can. It was a warm night when I painted it. That's why I chose that night. I THINK my problem was mainly not adjusting the gun. I tested it out on the plastic that I hung up and called it good. I suppose I should test it out on something a little more realistic. I couldn't tell so much that things were going bad until it sat for a few minutes. Next time, I'll iron out all the kinks on something a little easier to sand down if I make mistakes. Anyone in northern alabama want to help paint a car xD?

Stealth97

iTrader: (5)

50 psi! Try 15.. at least that's what I remember using from my short stint painting in high school

Kricket

The manual for the paint gun said 55psi.. I put it at 50 just to be safe.

gooflophaze

Which gun?

Now, I love me some Harbor Freight - and I just finished my paint job, still need to do the cut n buff. I used SPI epoxy, 2k primer, and clearcoat. I used the HF hvlp purple gun for the primer, a $30 gun for the 2k Primer (1.8 tip) and the "professional" 68843 silver gun for the base and clear. Some things I've learned.

A. **** the purple gun. My base laid out so smooth with the HF 68843 that I won't touch the purple gun again - unless it's for painting a trailer.
B. Air pressure - 60-90PSI at the wall, 20-25PSI at the gun inlet. Make sure you have a spin filter in there as well.
C. Gun Setup - This is where you need to watch Kevin Tetz on youtube. - He has lots of videos, watch them all. Initially on the purple gun I ran the fluid in 3 turns from "full fluid" to be the sweet spot. I also found adding a shot of reducer helped the epoxy lay out flat - but once I used the silver gun and found out how badly the purple gun atomized.. it just spurts out everywhere. It'll lay down paint for sure, but it won't lay it glass smooth like the silver gun.

Kricket

As obvious as this should have been... the gun used was intended for home or commercial use [http://m.harborfreight.com/air-tools/paint/professional-spray-gun-kit-93312.html] Not sure if this would mess much up, but...
I can't stop laughing.