Kester Wire Solder, Sn63/Pb37, # 331 Water-Soluble Flux, 1-lb. Roll
Pdf file Data Sheet
Kester Formula #331 is a high-activity, water soluble core flux for soldering difficult metals on printed circuit boards. It exhibits the same fast action and mild properties as Kester's popular 2331-ZX neutral organic water soluble liquid flux. The flux is more heat stable than most organic fluxes, resulting in minimal smoke and odor. Its residue can be completely removed with a simple water rinse.
  • Sn63Pb43 Alloy
  • .015" and 0.031" Wire Diameters
  • #331 Water Soluble Flux
  • #66 Flux Core Size
Clock fast Lead Time: In stock and ready for shipment Money orange $40.00
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Kester Wire Solder, Sn63/Pb37, # 245 No-Clean Flux, 1-lb. Roll
Kester 245 No-clean Cored Wire was developed to complement low residue liquid fluxes being used by the electronics industry. The chemistry is based on some of the same principles that have been safely used for years in mildly activated rosin fluxes.
Clock fast Lead Time: 3 Days Money orange $43.86
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POWER CORE WS101 Wire Solder
Pdf file Data Sheet
POWER CORE WS101 wire solder is a high activated water washable for repairing through-hole, mixed and surface mount assemblies. The flux core provides faster and better fluxing activity than RA flux cores. WS101 flux is formulated to provide high activity soldering, leaving an easily washable residue in plain water without the need for cleaning additives.
Clock fast Lead Time: In stock and ready for shipment Money orange $45.00
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SN100C NC601 Wire Solder
Pdf file Data Sheet
POWER CORE SN100C NC601 wire solder is a RA activated no-clean for repairing through-hole, mixed and surface mount assemblies. The flux core provides faster and better fluxing activity than RA flux cores. NC601 flux is formulated to provide clear, colorless residues, maximum activity and high reliability without cleaning in most situations.
Clock fast Lead Time: In stock and ready for shipment Money orange $45.00
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SN100C WS101 Wire Solder
Pdf file Data Sheet
Nihon Superior SN100C WS101 wire solder is a high activity water washable solder for repairing through-hole, mixed and surface mount assemblies. The flux core provides faster and better fluxing activity than RA flux cores. WS101 flux is formulated to provide high activity soldering, leaving an easily washable residue in plain water without the need for cleaning additives.
Clock fast Lead Time: In stock and ready for shipment Money orange $45.00
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POWER CORE NC601 Wire Solder
Pdf file Data Sheet
POWER CORE NC601 wire solder is a RA activated no-clean for repairing through-hole, mixed and surface mount assemblies. The flux core provides faster and better fluxing activity than RA flux cores. NC601 flux is formulated to provide clear, colorless residues, maximum activity and high reliability without cleaning in most situations.
Clock fast Lead Time: In stock and ready for shipment Money orange $55.00
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Kester Wire Solder, Sn96.5/Ag3.0/Cu0.5, # 331 Water-Soluble Flux, 1-lb. Roll
Pdf file Data Sheet

This is a lead-free, water soluble cored wire solder. It has a SAC305 lead-free alloy, #331 water soluble flux, and #66 flux core size. Kester's SAC305 lead-free wire solder is comprised of 96.5% Tin, 3.0% Silver, and 0.5% Copper (Sn96.5/Ag3.0/Cu0.5) with a melting temperature range of 422°F to 428°F. Kester lead-free wire solders have been tested and proved to give good contact angles and shiny joints. Kester Formula #331 is a high-activity, water soluble core flux for soldering difficult metals. It exhibits the same fast action and mild properties as Kester's popular 2331-ZX neutral organic water soluble liquid flux. The flux is more heat stable than most organic fluxes, resulting in minimal smoke and odor. Its residue can be completely removed with a simple water rinse. Kester #331 is classified as ORH1 per J-STD-004.

  • SAC305 (Sn96.5/Ag3.0/Cu0.5) Lead-Free Alloy
  • .015" and 0.31" Wire Diameters
  • #331 Water Soluble Flux
  • #66 Flux Core Size
Clock fast Lead Time: In stock and ready for shipment Money orange $75.00
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Kester Wire Solder, SN96.5Ag3.0Cu0.5, # 275 No-Clean Flux, 1-lb. Roll
Kester “275” No-Clean Flux for cored solder wire was developed to provide superior wetting performance for hand soldering in the electronics industry. The chemistry is based on some of the same principles that have been safely used for years in mildly activated rosin fluxes.
Clock fast Lead Time: 3 Days Money orange $76.70
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