Primer Wipes Off?

[anitox]

I'm noticing that sometimes while basecoating my models after I have primed them, that the black primer will easily wipe or flake off certain areas. This only seems to happen with pewter models.

Anyone know what's causing this? Is it just my fingers touching it, or maybe I didn't let it dry completely.

I also remember reading about someone washing their models with soap and water. Maybe I should do this...

[Scizor]

i wash metal models in alcohol. but metals are still a pain because they are easily chipped. i never touch them if i don't have to, lift them on their base. primer gives a stronger coat than hand coating, but still metal models are a pain. make sure to varnish them afterwards aswell

[anitox]

Do you use isopropyl alcohol to wash them?

[Scizor]

Aceton is the name of the one i use. but no alcohol melts it or anything (but be carefull when washing plastics or resin, soap is better there). so i think it's fine if its strong enough. paint will stick better to it with this done, but be carefull still