You're mid-project, the iron's hot, and you're down to the last centimetre of solder. A 500g roll of Duratech 0.71mm tin/lead resin core keeps you going through a full production run or a long repair session without reaching for a second spool. The resin flux core gives you clean joints straight off the iron — no pre-tinning, no separate flux step. 0.71mm diameter feeds smoothly through standard tips and lays a consistent bead on PCBs, wiring, and component work. When the roll runs low, grab another and know it's the same alloy
| brand | JAYCAR |
| wire_diameter | 0.71mm |
| alloy | Tin/Lead |
| flux_type | Resin core |
| weight | 500g |
| form | Roll |