10 FEET, ORIGINAL KESTER SOLDER, 60/40, 0.031", 44 ROSIN CORE, 24-6040-0027 60% Tin / 40% Lead / 3.3% Flux (44) / Sn60Pb40 3.3%/44 / .031", 0.031", .8mm, .80mm, 0.8mm, 0.80mm *** This is a RETAIL SALE, does NOT include a spool or a dispenser or a package, it's a Roll of Genuine KESTER Solder WIRE (see the 2nd picture) in the chosen size, and sent in a Commercial Envelope Tracked by USPS IMb (non-public tracking). *** Kester 44 Flux-Cored Wire 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 five 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. Under IPC J-STD-004, 44 is classified as ROM1. Despite the increased activity and soldering performance, 44 passes both 85 C/85% RH and 40 C/90% RH SIR test methods. Performance Characteristics: - High activity RA formulation - Passes both 85 C/85% RH and 40C/90% RH IPC SIR testing - Excellent solderability to a wide range of metallizations - Industry standard RA cored wire for decades - Classified as ROM1 per J-STD-004 other products: kester, solder, kester solder, euthetic, eutetic, euthetic solder, 6040, 6040 solder, 6737, silver, audio, rosin, flux, cardas, cardas solder, cardas audio, lead, free, lead free solder