Question for those that use Future

[tractoraholic]

Good Morning,

I have used Future as a clear coat for a while on my builds. I know there are those that don't like it and advise against it, but it worked for me and have been happy with the results until today. So my son is building a Amt 66 Chevelle and I airbrushed the body for him, let the paint dry, applied a coat of future and after a week, it looked like the paint expanded or the future shrank and caused fine cracks, crazing or a cracked glass look, spider webbing. Now it's not noticable unless the light hits it right and you REALLY look close. Fortunately it wasn't the paint, because future comes right off with Windex and warm water, and I have a flawless surface again. Any of you future guys have that happen? A little more details, I used Rust-Oleum 2x enamel paint, I decant and thin it with lacquer thinner to airbrush, and I let the car dry for 2 weeks in 70 degree temps before the application of future. I don't air brush future, never had luck but apply it with a soft red sable brush. Is it possible the future is bad, I have a original bottle that's probably 10 years old. However I used the same paint and future on another model 6 months ago and it's flawless and shiny like the day I applied it. The car body I ended up polishing with the novis 3 step plastic polish and looks good now with out future.  Thanks in advance for your replys 

[deuces wild]

That's a tough one to answer.. Still, I would never apply future over enamel paint because it dries real slow... Someone with more experience will chime in shortly... I hope.

[vintagerpm]

The enamel had not finished curing. As it cured, it shrank and cracked the Future. My understanding is that enamel can take quite a long time to cure. (Weeks?)

Same can happen with lacquer paint under Future. I never use enamels, but when I spray lacquer, I always wait at least a week before putting anything (Future, another lacquer, whatever) on top of it.

 

[Dave Van]

I had one model, MANY years ago, have the Future crack on. It was a new paint I was trying and did not allow enough time for the paint to gas out. From then on I allow paint to gas out for a few weeks and never had an issue again.  Been sing Future since early 1980's when I saw it demo at a IPMS meet. 

[tractoraholic]

Thanks for the replys guys,

 Im assuming that's what happened, the enamel didn't fully cure.

[Bugatti Fan]

Enamels are oil based paints and should never be over coated with acrylic. Acrylic is actually a very thin airtight plastic coating when it dries. Enamels take ages for their solvents to evaporate out, and even though they.might feel dry to the touch the solvents are still leeching out for weeks of months after.