Kester 44 Rosin Flux is an activated rosin formula for use in flux-cored solder wire. 44 has virtually dominated the field of activated rosin core solders for well over four decades. An outstanding performance feature of this flux is the "instant-action" wetting behavior. The high mobility and fast-spreading action of this flux results in more reliable production line soldering. 44 is classified as ROM1 per J-STD-004.

Kester® Flux Cored Solder Wire, Leaded Rosin, 0.031 in Wire Diameter, 1 lb Container, Spool Container, Sn60/Pb40 Alloy Wire

• 44 flux
• 66 core
• 3.3% flux
• Contains halogen

• https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Kester_2460400027_SDS.pdf https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Kester_2460400027_SDS.pdf