Why are you stripping it? The paint looks perfectly fine to sand and repaint.
You’d probably struggle to melt copper or solder with a heat gun but you’re right to be careful.
Solder melts at around 180C, which is probably a lot less than a heat gun can produce, so I'd be extra careful. Or just sand and repaint, as you say.
@Sharkstar started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Why are you stripping it? The paint looks perfectly fine to sand and repaint.
You’d probably struggle to melt copper or solder with a heat gun but you’re right to be careful.