Repainting galvanized steel garage door

Strip it using a good paint stripper. Clean thoroughly and prime with a good galv friendly primer. Paint with whatever gloss paint you like. Cheaper than *trying* to find out with Hammerite (Which always looks shyte anyway)

Hammerite is IMHO unsuitable for painting such a large area owing to the great difficulty of maintaining a wet edge. It dries too quickly.

On Thu, 25 Mar 2010 10:15:42 +0000 (UTC), snipped-for-privacy@DENTURESsussex.ac.uk gently dipped his quill in the best Quink that money could buy:

Use a heat gun, prime and finish with Dulux Metal Shield

Mike P the 1st

Not done anything like this, but I would be careful not to go through the galvanizing with sanding or wire brush, or you might find rust staining starts coming through the new paint after a while.

Thus spake Andrew Gabriel ( snipped-for-privacy@cucumber.demon.co.uk) unto the assembled multitudes:

Many thanks to all for their replies. I take your point about damaging the galvanizing, so will probably go down the route of using paint stripper and then gentle sanding to provide a key.

I wouldn't even go that far - just strip. Weathered galvanising is a good painting surface all on its own.

Use a good quality zinc-rich primer (often aerosols) to repair damage.

Thus spake Andy Dingley ( snipped-for-privacy@codesmiths.com) unto the assembled multitudes:

Thanks for the tip.