MGB MG GT Car Rear Free Stock Photo Public Domain Pictures Oldtimer Mg Old Car Free photo on Pixabay Mg Cars, News and Reviews Motor1.com MG Chemicals 60 40 Rosin Core Leaded Solder, 0.025" Diameter (23 Gauge), 1 2 lbs Spool (4894 227G). Weight: 227 g (0. 5 lb) Diameter: 0. 63 mm (0. 025 in) Gauge: 23 The MG Chemicals 4894 Sn60 Pb40 RA Solder Wire is electronics grade solder wire. The 60 40 rosin core solder uses a classic tin to lead alloy ratio complemented by a RA like flux core. This solder wire meets J STD 004B, ASTM B 32, and exceeds J STD 006C specifications. It melts at slightly higher temperatures and over a wider temperature range than 63 37 solder. This results in robust and reliable joints that are highly resistant to whisker formation. These 60 40 leaded solders achieve a consistent solder and flux percentage thanks to our state of the art extrusion wire drawing machine, which continuously monitors the wire to prevent voids and ensure consistency, resulting in a top grade solder wire. Features & Benefits Alloy exceeds J STD 006C and meets ASTM B 32 purity requirements Flux meets J STD 004B Rosin activated flux Fast wetting Fast flowing Non corrosive residue Non conductive residue