Acetone paint bubbles in the heat

I like spraying the acetone solvent paints, but they tend to bubble up on the hot sunny days. Has anyone tried mixing xylene or something to the eliminate the bubbles? I have considered mixing some regular CR with the acetone paint.

Acetone is too fast of a solvent for this heat, you need a slower solvent.

We use DV CR and have had the bubbles. It is the fast dry. Do you think that is the issue?

Yes. You may can ask the paint supplier if they have a retarder to slow the drying time a bit or try a slower drying paint. What happening is call "gassing out", the surface of the paint is drying before the bottom and as the solvent turns to vapor it makes bubbles as it pushes through the paint.

Thanks for the info. Now that I think about it it also happened when painting stencils when it was cold out once. Maybe I wont buy the fast dry in this heat

What kind of heat are we talking here? We use acetone exclusively and I've never seen bubbling happen.

Southern heat. Surface temperature around 160, humidity 35% or more, people speak plain English.

Ah gotcha, in Canadian heat thats a bit under 72 degrees. Highest we see is about 90-95F ambient, although a couple weeks ago we saw 105F with humidity.

I used to have the same problem and sometimes is would only be 75 F air temp and in the shade. What was suggested to me and what I found best is to use two light coats low pressure around 1100 psi. Otherwise switch to something else. I found the premature wear outweighed the quickness of drying. Sometimes it dries so fast it doesn't adhere to the surface.

I had that happen on 1 job, there was something on the concrete that made it bubble it cool weather, and it did not stick. I had to repaint it because it did do not adhere. Some lines were pretty good, but some were really bad.

I will wait until if cools down and go back to the acetone paint, it is a great paint to use when it the weather cools down.

I use 100% Acrylic Guerilla paint and I have seen this happen a few times. I have noticed that when even a small amount of toluene gets into the paint that the bubbles will happen.

It is from hot concrete more than the temperature. The only way around it I have found is two coats. I only have problems on hand work like ADA logos