Painting galvanised steel garage door

[A.Clews]

The (red) paint on my garage door is peeling off in places, exposing the galvanised steel surface underneath. It was last painted about 15 years ago, so it's had a pretty good innings, but I've no recollection of the type of paint used then. What's the best paint to use on such a surface, and how best to prepare the surface for painting? I don't really want to strip the entire door down to the galvanised surface if I can help it. It's a south facing door and so gets a lot of sun on it.

Thanks...

[Merryterry]

If the galvanising is dull ands weathered you will not need a special primer. Just an undercoat and a top coat of whatever you fancy. If the galvanising is shiny you will need to use a 'Galvanise Primer' available from all good paint suppliers.

[A.Clews]

Thus spake Merryterry ( [e-mail]) unto the assembled multitudes:

My galvanising is certainly dull - there are a lot more interesting things to look at :-) No, seriously, it isn't at all shiny.

Thanks for your reply.