I have a large double gate for access to park my car in rear garden. They are galvanized and previously paint what is the best paint to use and how do I prepare it for paint. Thanks
Assuming the previously painted gates are clean, dry, sound and prepared as detailed in the technical data sheet we can recommend Rust-Oleum CombiColor Original.
This is available mixed to many RAL, NCS or BS colours in a satin or gloss finish.
If there is any bare galvanised areas, these shoudl be primed first with Rust-Oleum 3302 CombiPrimer Adhesion Primer.