Painting question. Please help!

Thanks everyone. You've all been very helpful. I couldn't find any Krylon in the shops, but I did find some primer. I hope that will work.

FLASH FACT: Tamiya flat base (the neutral looking grey stuff) is not a paint or a primer! It is an additive to flatten the sheen of other glossy paints. I actually have it and made the same mistake. All you are left with is a white chaulky mess right? Unfortunately, you have to wash it all off and start over. It will not adhere to anything and nothing will adhere to it. It does work to flatten another color that you can not find in a flat though. Sorry to be the bearer of bad news. T

No need to sand completely off. Just sand to take off rough or peeling spots. Krylon can be used instead of primer but krylon then primer would ensure a good base.

Hi. Thanks guys. Yes I washed the figure with soap and warm water first and mixed the paints before starting. I painted over the top of the Tamiya Acrylic base colour with the final colour I wanted. It didn't rub off this time when I touched it, but it's now started to peel. So should I remove the paint and then sand it and then spray with Krylon? Am I able to apply the krylon with a brush instead of spraying it? It's only certain areas I want to paint.
Perhaps the reason it's peeling is because it's only small areas I've painted?
Do you use the Krylon instead of a primer or base coat?

Krylon will definately help. Did you wash the figure first? Sometimes factory mold release residue is still on the figure not to mention oils and dirt from handling and sitting on a shelf. Try light sanding with a fine grit before base coating and between layers. If you didn't thin the paints or mix them first that can also cause inconsistencies. Be sure to apply in thin coats. I use krylon matte finish quite a bit while painting. Good luck!

This happens every once and a while with some kinds of plastic if you spray the base figure with some krylon before painting it that should fix your problem.