[ryangus]

I'm going to repaint a steel roofrack I have here. It's painted, with light surface rust in areas. I was simply going to sand it back and use satin black Killrust or similar.

The question is, how much do I have to sand it back. Obviously I need to remove the surface rust, but how much do I have to sand the paint back? Hopefully I don't need to sand it back to bare metal, as that would be a major PITA. If so, I guess I'd be better off having it sandblasted.

Any advice?

[BlueSuzy]

Just get rid of /sand back all the rust where the spots are, and repaint. Its only a roofrack.

[ryangus]

BlueSuzy wrote:

Just get rid of /sand back all the rust where the spots are, and repaint. Its only a roofrack.

That's what I thought. I imagine Killrust won't have any problem sticking to the original sanded paint?

[31zook]

if it's flaking, then sand it all back, just use a wire wheel

[11_evl]

light sand and hammertone it

[2stroker]

11_evl is on the right track, I hate Killrust, it is too soft, it takes too long to dry and does not wear well. Go to Supercheap or Bunnings and get a spray can of charcoal hammertone fast dying industrial enamel. Drys rock hard, looks good, hides imperfections, is rust resistant. Lots of tailers are painted in hammertone and it stands up well outdoors.