ive sanded back a few patches with 180 grit sandpaper just to see whats going on. metal looks pitted and the veins under the paint are indeed rusty. tried a small section under what looked like smooth unblemished paint and that was also mottled. so looks like i would have to sand down the entire frame by the looks of it. would painting over that mottled/pitted bare metal just be covering the problem? is that rust thats just going to keep eating deeper into the metal?
ive sanded back a few patches with 180 grit sandpaper just to see whats going on. metal looks pitted and the veins under the paint are indeed rusty. tried a small section under what looked like smooth unblemished paint and that was also mottled. so looks like i would have to sand down the entire frame by the looks of it. would painting over that mottled/pitted bare metal just be covering the problem? is that rust thats just going to keep eating deeper into the metal?
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