Kester 24-6337-0027 Solder Wire, Rosin Core, Leaded, Sn63Pb37, 3.3%, 0.031″ Dia.
Alloy: Sn63Pb37. An outstanding performance feature of this flux is the “instant-action” wetting behavior. 44 is classified as ROM1 per J-STD-004. Flux Type: Rosin Core. Lead Free: No. Industry standard RA cored wire for decades.
Kester 24-6337-8800 Solder Wire, No Clean, Leaded, Sn63Pb37, 1.1%, 0.031″ Dia.
Lead Free: No. Composition: 63/37 (63% Tin, 37% Lead). Tin or Lead Alloy: 63/37. Flux Type: No Clean.