lead paint

is there a paint on the market that i can coat my lead flashing which wont bubble or peel? coated it with hammerite last time but it didnt last long.

Not as far as I know...my old dad always used to when a customer wanted lead painted..it won`t stick. Your choice though - I just do this for fun

Nige is about right. Lead expands and contracts with temperature changes so paint is not really the best choice. The only thing we ever put on to lead is panitation oil which helps it weather evenly and not patchy.
There may be some kind of paint that may work that is flexible enough, I'm thinking along the lines of fabric paint that is designed to work cloth that of course doesn't stay still. I've seen tents successfully painted in this way but can't say for sure it would work with what you want.
I can't help thinking, however , why you want to do this in the first place?