The Kester 24-6337-0061 high activity, rosin activated cored wire is excellent for instant wetting action. Although "44" is an RA-based material, the residues are non-corrosive if left uncleaned.
Kester 24-6337-0061 Features:
Wire diameter: .062"
Alloy: Sn63Pb37 (63% Tin / 37% Lead)
Melting range: 361°F (183°C)
Core flux type: RA
Core size: 66
Spool size: 1 lb.