I sprayed Johnson's Wipe And Shine (Future's brandname in the Philippines) over a gloss acrylic (Gunze paint) coat, and stored the sprayed model in a sealed container while it dried. When I pulled it out, the finish was cracked! Other models I had sprayed with Future (over Tamiya enamels) weren't cracked, what happened?

The only thing I come up with is spraying a gloss finish on a gloss acrylic. The other times you used future was it over gloss paint...? Anyone else have an answer for blank?

Dont know why it happened but I use it over enamels with no cracking.

I use it straight from the bottle.
Did you thin it with something???

Two possibilities:
1. If the base coat had not dried sufficiently, cracking of the film of the final coat could happen. An undercured first coat will continue to cure creating stress in the top coat. Paint cures from the surface down. So basically you have two paint films curing at different rates.
2. If you placed the part in a sealed container, this would extend the flash off and cure time of the topcoat and could rewet the the first coat and result in the same situation as stated above.

Arg! I read about this on the rec.models.scale FAQ but didn't think it applied to Gunze paints... Is there a cure?

oooh Blank, I dont know
what 'd they say?
I was using mine over Model Masters mostly, and some Tamiya Acrylics.

Blank: Try removing the Wipe n Shine with alcohol., might work. I suggest using cotton buds, test it in a small portion first....

Just tried what you suggested, Warthog. The future comes off, but apparently it's the paint that's cracked... damnit!