Some painting advice required brass kits

[MJI]

OK I sprayed a few models yesterday, 4 had issues.

 

3 the tape ripped off paint but the undercoat was too hard so will be respraying anyway.

 

Plastic card but the blue would not adhere to the grey done 3 months prior.

 

Will be stripping and starting again and do within a week, this is just an annoyance.

 

But the finish was perfect.

 

I also sprayed two vihicles in maroon, one plastic, perfect, the other brass with U-Pol acid 8 primer.

 

The paint on the etched vehicle was lumpy, almost orange peel.

 

Precision enamels.

 

What have I done wrong please?

 

Have sprayed on Acid 8 OK before.

[Barry O]

were the items warm? was the paint warm?

 

Sometimes if it is damp or cold paint can do very strange things.. don't ask me how I know!

 

Baz

[MJI]

Not particularly warm but I suppose brass would be cooler