Treating rusty zinc

[ballbagbagins]

Hi, I'm putting together a second hand metal shed. The frame is galvanized but there are a few areas of rust where the zinc coating has worn off. What the best method for treating this rust and stoping it from coming back in the same areas?

Pete

[madmog]

Wire brush the loose crud off. Use a phosphoric rust convertor, then decent primer and top coats. Well that's what I've been doing on my car's rust.

[fazzer]

Paint it in galvafroid,will last for years .