Solid Core Wire

Most of our alloys are available as solid core (no flux in the center). The most popular diameters are between 0.010”/0.254mm and 0.062”/1.52mm; however, SnAg and AuSn alloys are available in diameters less than 0.010”/0.254mm.

  • Solid core wire is available in:
  • Pure indium and indium-based alloys
  • Bismuth-based alloys
  • SAC alloys
  • Pb-based alloys (including high Pb)
  • 80Au/20Sn
  • Pb-free alloys

Flux-Cored Wire

Flux-cored wire is generally used for manual soldering or rework and is increasingly used in robotic soldering applications. It contains the flux in the center to facilitate the soldering process and eliminate the need for a separate flux. A variety of flux cores are available including no-clean, water-soluble, and halogen-free. Flux-cored wire is also used for soldering processes that do not involve electronics. Typical alloys for flux-cored wire include:

  • SAC alloys
  • Other Pb-free alloys such as SnAg, SnCu, and SnSb
  • Pb-containing alloys including SnPb and SnPbAg
  • High Pb-based alloys

Core Flux Formulas
No Clean

Flux NumberJ-STD-004QQ-S-571fHalogen FreeResidueResidue RemovalPreferred AlloysApplication /Comments
CW-818ROL0N/ANoColorlessNC
SO
SA*		SnPb,
Pb-Free		Provides fast wetting speeds to minimize cycle times in manual and robotic soldering processes, contains spatter control technology, and designed to resist charring at higher tip temperatures
CW-807ROL0“RMA”YesColorlessNC
SO
SA*		SnPb,
Pb-Free		General purpose electronics soldering, REACH-compliant
CW-807-HROL0“RMA”YesLight AmberNC
SO
SA*		High-Pb containingHigh temperature, mildly active, modified rosin for high-lead containing alloys
Core 230-RCREL1N/ANoLight AmberNC
SO
SA*		SnPb,
Pb-Free		Extremely low spatter, excellent for robotic soldering, general purpose electronics soldering, REACH-compliant
CW-808ROL0“RMA”YesClearNC
SO
SA*		SnPb,
Pb-Free		Halogen-free formula containing spatter control technology
CW-802ROL0“RMA”YesColorlessNC
SO
SA*		SnPb,
Pb-Free		No halogen added, low activity, no-clean
CW-102ROL0“R”YesLight AmberNC
SO
SA*		SnPb,
Pb-Free		Military type “R” for legacy applications, very low activity
Core 229-RCROL1N/ANoLight AmberNC
SO
SA*		SnPb,
Pb-Free		Extremely low spatter, excellent for robotic soldering general purpose electronics soldering, REACH-compliant
CW-807-MROM1“RMA”YesColorlessNC
SO
SA*		SnPb,
Pb-Free		Hard-to-solder, general purpose electronics applications
Core 92ROL0“RMA”YesLight AmberNC
SO
SA*		SnPb,
Pb-Free		Low activity, RMA based on SMQ92J paste technology

Activated Flux-Cored Wire

Flux NumberJ-STD-004QQ-S-571fHalogen FreeResidueResidue RemovalPreferred AlloysApplication /Comments
CW-219ROM1“RA”NoColorlessNC
SO
SA*		SnPb,
Pb-Free		Highest activity no-clean flux offering. For non-sensitive appications where the soldering surface is highly oxidized or the customer would like to increase the speed of wetting to achieve higher throughput
CW-232ROM1N/ANoLight AmberNC
SO
SA*		SnPb,
Pb-Free		Extremely low spatter, excellent for robotic soldering where more activity is desired and cleanliness is important
CW-201ROM1“RA”NoLight AmberNC
SO
SA*		SnPbElectrical application, will solder copper, brass, nickel, etc.
CW-207ROM1“RA”NoColorlessNC
SO
SA*		Pb-FreeElectrical application, will solder oxidized copper, brass, nickel, etc.
CW-209ROM1“RA”NoColorlessNC
SO
SA*		SnPb,
Pb-Free		Electrical application, will solder oxidized copper, oxidized brass, nickel, etc.

Water Soluble

Flux NumberJ-STD-004QQ-S-571fHalogen FreeResidueResidue RemovalPreferred AlloysApplication /Comments
CW-301ORH1“QR”NoAmberWaterSnPb,
Pb-Free		Water washed electronics applications
CW-305ORH0“QR”YesAmberWaterSnPb,
Pb-Free		Next generation halogen-free water-wash, exhibits almost no corrosivity
CW-901N/A“IA”NoWhiteWater/NeutralizedSnPb,
Pb-Free		Inorganic acid, water wash flux for stainless steel