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Solder - Kester 44, 1 lb spool

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SKU: S-T9000X
Item ID: 004315
Price: $31.95
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(60/40 Rosin Core) - ..031" or .050" Diameter, 1 lb Spool, contains lead alloy.

Kester 44 Rosin Flux is an activated rosin formula for use in flux-cored solder wire. Kester 44 Rosin Flux 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.


  • Classified as ROM1 per J-STD-004
  • Excellent solderability to a wide variety of metallizations
  • High activity RA formulation
  • Industry standard RA cored wire for decades


  • Alloy: Sn60 Pb40
  • Core Type: 3.3% Flux (66)
  • Diameter: 0.031 or 0.051
  • Flux Designator: ROM1
  • Flux Formula: 44
  • Flux Type: Rosin, Activated (RA)
  • Melting Range (°F / °C): 361-374°F / 183-190°C
  • RoHS Info: Contains Lead
  • Weight (lb): 1
OptionOur Part Number

UPC/EAN: 768249061861

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Product Reviews

5.00 out of 5 based on 2 reviews

You won't find a better solder for amp and guitar circuits! It flows extremely well and the melting point is perfect. Don't waste time or money with anything else.

Darasick - September 23rd, 2015

Awesome stuff. Perfect for Amps and musical equipment, and an unbeatable price.

Donnie Land - September 2nd, 2015

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