Talk Morgan Forums Morgan Sports Cars Maintenance & Servicing Chrome Bumpers

The inside of my chrome bumpers are going rusty and need attention. Is there anything I can do to treat them or do I need to send them to a chroming specialist. I've tried using WD40 and a wire brush but this doesn't seem ideal.
Regards
Phil

Firstly, never, ever use WD40 for this job. Reason being, it is a water attractor and works as a water displacement fluid by virtue of the water falling away with the excess WD40. It's also a rubbish lubricant as well.

If the inside of the bumper is not plated, my temptation would be to use a phosphoric acid rust treatment (Kurust is one) and then paint it black, or body colour.

The insides are never well finished Phil, and even a rechroming won't provide long term protection. When I had my front MGB bumper rechromed many years ago I asked about a guarantee and the chromer just laughed!

Remove your bumper from the car. Protect the outer surface - masking tape or similar, and place on an old towel. Then probably a drill attachment will be best on the rust first - use eye protection.

Then follow Martyn's advice with a rust converter if necessary. Follow that with an etch primer. When that's dry - my favoured finish is just silver paint - wheel paint will work, as will any standard silver. Originally they seemed to have had a rough hammered silver finish, which is not easy on the eye.

Many thanks guys. Really useful advice and greatly appreciated.