I bought this because I heard it was good for the electronics and it is. I mixed some with MG Rosin Flux and it made it even better. lots of heat, but it works and it's cheap. I've never used Amtex or any other paste flux, so I can't compare it to anything other than plain rosin. (I do not recommend anyone to mix this with anything else) The combination gives good results.
309LFC-O X .035 X 1LB Spool Gasless Stainless Steel Flux Core Welding Wire by Blue Demon
12 Review
π₯ Whizzotech Solder Wire 60/40 Tin/Lead with Flux Rosin Core - 0.032 Inch Diameter for Electrical Soldering (4oz/100g/0.22lb)
13 Review
Welding machine inverter type Partner for garden MMA-200, MMA
20 Review
Hakko 599B 02 Wire Type Soldering Cleaner
11 Review