I'm trying to refurbish a radiator which is in pretty poor shape. The paint was all cracked and yellowing, and having sanded it, there's rust patches underneath.
It's been painted badly in the past as well, so thick layers of paint have pooled at the bottom and are proving very hard to remove with sandpaper. I've already used several applications of paint stripping gel, which also no longer appears to be having much of an effect.
1) How can I tidy this up to get a nice smooth finish? As I say, sandpaper is proving hard. Is there some way I can more easily remove or smooth off the remaining paint, especially in the awkward fiddly areas?
2) I have some anti-rust primer - will that be OK to use over existing rust? Here's what I have: Can I just use 1 coat of the primer, followed by 1 coat of the Hammerite on existing rust as in the pictures?