Kester SN63PB37 "285" is an RMA based core flux that provides wetting action comparable to that of typical RA fluxes. Although "285" is an RMA-based material, the residues are noncorrosive if not cleaned. "285" is categorized as ROL0 per J-STD-004. Features: Specifications: Solder Alloy: 63, 37 Sn, Pb
External Diameter: Metric: 0.787mm
External Diameter: Imperial: 0.031"
Melting Temperature: 361.4° (183°C)
Weight: Metric: 453.592g
Weight: Imperial: 1lb