I'm slowly getting round to painting a tank for an old GSXR. It'll just be a shed/ rattle can job so nothing fancy, but I want to make as good a job as I can.
It's previously been stripped to bare metal then left outside which means it has a lot of little rust dots on it. I rubbed it down to flat and sprayed a bit of black paint on it - the dots reappeared but haven't got any worse after 14 years.
Question is - any thought on an appropriate undercoat/ treatment I could use to stop these reappearing when I spray it?
Thx!