I went with por15 as Caswell isn't distributed as widely here so is more expensive.
The badge areas seem to be the worst affected areas on the tank by far, rest of the tank looks like just surface rust, the badge area has dimples where the rust has penetrated. These jap badge mount areas are just stretched to make the indent and so are very thin to start with. Dumb.
I tried tig welding the hole at first and that was a no go and made the hole bigger, even with the welder on the lowest setting. I managed to weld it up again but it aint pretty. Me dumb.
I've now managed to get access to a good propane torch setup so I'm considering doing this:
- cutting out the badge mount areas.
- cut metal patches to fit the badge areas.
- braze on new patches using "fluxed silicon bronze rods":
http://www.ebay.co.uk/itm/171952756962?_trksid=p2057872.m2748.l2649&ssPageNam...- line inside with POR15 sealer.
- finish outside with 2k.
Does this seem sensible?I don't care about the tank looking slick, ascetically I want the bike to be like the old speedway bikes that me and my cousins used to watch when we were kids in 1970s Australia - so a bit patched up is cool for this build.