The DP that I use, is mixed 2:1:0.5. If used as a sealer.

 

Is that 2 parts epoxy, 1 part reducer, and half part of activator?

 

2 parts epoxy, 1 part activator, 1/2 part reducer. This is for PPG.

 

If your epoxy says to reduce with one part reducer then reduce with 1 part reducer.
Most epoxies spray best with a 1.4 tip paint gun. What type of gun are you using and what tip size?
Too big of a tip and you wont break up the paint properly. Instead of a mist you get a water hose effect.

Do you have the gun adjusted right? Enough air pressure, too little or too much fluid?
Not enough air pressure wont break up the paint. Too little amount of paint wont provide enough material to get a good wet coat.

Making sure you have the right gun tip size and the proper settings is far more important then humdity.

Your gun should be about 6-8 inches from the surface. When you pull the trigger you should get a even wet pattern from top to bottom.

 

I used DP 40 on mine and it is a 50/50 mix. I have applied it in very high humidity and had no problems. It may take a little longer to dry but that's about it.

 

Down here, we have about 85% humidity on a good day, 95% on a bad. I have sprayed in all types of conditions and nothing has really been affected, one panel was a touch grayer then the next, but other then that nothing. I have even sprayed a few small parts in rain...

Using SPI Epoxy. 1:1 ...

-Todd

 

Spi!!!!!!