Best way to refurb wiper arms?

The wiper arms are showing signs of rust and bubble, what's the best way to refurb this?

I asked this question recently. General response was either spray them, or powder coat - all about how much you want to spend.
I've decided that I'm going to dismantle mine completely  and get them powder coated. After talking to my powder coating chap, he said he's always struggled to get a finish he is happy with when they are still hinged.
When it comes to reassembly I'm either going to use semi tubular rivets (that is what is used originally) or these - https://www.ebay.co.uk/itm/283779145629?_trksid=p2380057.m570.l5999&_trkparms=gh1g%3DI283779145629.N36.S2.typeWATCH_ITEM_ENDING_SOON.R2.TR4  I'm struggling to find the right length rivets unless I want 1000 of them!

paceman said

I asked this question recently. General response was either spray them, or powder coat - all about how much you want to spend.
I've decided that I'm going to dismantle mine completely  and get them powder coated. After talking to my powder coating chap, he said he's always struggled to get a finish he is happy with when they are still hinged.
When it comes to reassembly I'm either going to use semi tubular rivets (that is what is used originally) or these - https://www.ebay.co.uk/itm/283779145629?_trksid=p2380057.m570.l5999&_trkparms=gh1g%3DI283779145629.N36.S2.typeWATCH_ITEM_ENDING_SOON.R2.TR4  I'm struggling to find the right length rivets unless I want 1000 of them!

Thanks for that mate, I did respray them but not too happy the way they've come out although looks alot cleaner.

1, Wire Wheel, bench mounted
2, Autotek - Grey Primer
3, Autotek - Satin Black

Works for me.