You can definitely do that with a blowtorch and some Fillet Pro. I added a braze-on and filled a small dent using Fillet Pro and a plumber's torch on one of my frames.
I have some but in all honesty you will get by quite fine with 312 filler wire
@MikeBML 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.
You can definitely do that with a blowtorch and some Fillet Pro. I added a braze-on and filled a small dent using Fillet Pro and a plumber's torch on one of my frames.