panzershreck wrote:thanks all.
I am trying to get krylon ruddy primer here. i'm not in the UK/US tbh. Seems harder than I thought
Ah, so if you're not in the UK or her bloated offspring, the US (

), then references to 'Halfords' might not mean much. However, I've just cut this from 'Alan's' interesting contribution on the website
model-railroad-hobbyist.com:
".....Acid, but not the Timothy Leary kind
Thu, 2012-05-24 10:29 — LKandO
I submerge the part in vinegar for a few minutes
Good suggestion. Any acidic solution will etch metal to some degree and etch is good for paint adhesion. Etching expands the surface area available for the paint to adhere to - more surface area = more adhesion. Orange juice, Coca-Cola, masonry cleaners, etc. If it will shine up a penny then it is working!
Alan..."
Hope he doesn't mind, as it's an interesting little bit of info.
If need be, re-prepare the parts to be painted using this 'etching' process, and when respraying, ensure the rattle can is shaken for at
least a couple of minutes. Don't spray in the wind (don't pee in the wind, either!

) Better luck this time. I'm sure we've all had these frustrations when acquiring daubing skills.