Flux-Cored Wire

Flux-Cored Wire

Indium Corporation offers a wide range of no-clean and water-wash flux-cored wire solutions to meet the needs of virtually every assembly and rework application.

Features & Benefits

Indium Corporation is quickly becoming known as one of the highest quality, full line suppliers of flux-cored wire solder.

Indium Corporation uses only “conflict-free” and grade A (per ASTM B32) metals, as well as other high purity metals for its flux-cored wire. Our materials have been tested and certified to meet IPC J-STD-004B and other relevant industry specifications, including the legacy military specification QQ-S-571f. Indium Corporation’s flux-cored wire is well known for its:

  • Void-free
  • Evenly layer winding
  • Low oxide shiny appearance over time
  • Non-offensive odor for the 800 series and 200 series fluxes

Featured Flux-Cored Wire

CW-818

  • Fast wetting
  • Light-colored non-tacky residue
  • Reduced spatter formulation
  • Works well for manual and robotic soldering processes
  • Compatible with Pb-free and SnPb alloys
  • Compatible with HASL, Immersion Silver, ENIG, and OSP surface finishes
  • Good choice for legacy processes requiring an RMA strength product

CW-219

  • Very Fast Wetting
  • Compatible with HASL, Immersion Silver, ENIG, and OSP surface finishes
  • Clear residue
  • Compatible with Pb-free and SnPb alloys
Award Winning
Mexico Technology Award for CW-818, September 2022
Award Winning
GLOBAL Technology Award for CW-818, November 2022

Core Flux Formulas

No Clean

Please scroll right to view all available information.
Flux
Number		 J-STD-
004C		 QQ-S-
571f		 Halogen
Free		 Residue Residue
Removal		 Preferred
Alloys		 Application/
Comments
CW-818 ROL0 N/A No Colorless NC
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-807 ROL0 "RMA" Yes Colorless NC
So
Sa*		 SnPb,
Pb-Free		 General purpose electronics soldering, REACH-compliant
CW-807-H ROL0 "RMA" Yes Light Amber NC
So
Sa*		 High-Pb containing High temperature, mildly active, modified rosin for high-lead containing alloys
Core 230-RC REL1 N/A No Light Amber NC
So
Sa*		 SnPb,
Pb-Free		 Extremely low spatter, excellent for robotic soldering, general purpose electronics soldering, REACH-compliant
CW-808 ROL0 "RMA" Yes Clear NC
So
Sa*		 SnPb,
Pb-Free		 Halogen-free formula containing spatter control technology
CW-802 ROL0 "RMA" Yes Colorless NC
So
Sa*		 SnPb,
Pb-Free		 No halogen added, low activity, no-clean
CW-102 ROL0 "R" Yes Light Amber NC
So
Sa*		 SnPb,
Pb-Free		 Military type "R" for legacy applications, very low activity
Core 229-RC ROL1 N/A No Light Amber NC
So
Sa*		 SnPb,
Pb-Free		 Extremely low spatter, excellent for robotic soldering general purpose electronics soldering, REACH-compliant
CW-807-M ROM1 "RMA" Yes Colorless NC
So
Sa*		 SnPb,
Pb-Free		 Hard-to-solder, general purpose electronics applications
Core 92 ROL0 "RMA" Yes Light Amber NC
So
Sa*		 SnPb Low activity, RMA based on SMQ92J paste technology

= Primary Formulas

Key: NC=No-clean | So= Solvent | Sa= Saponification

Activated Flux-Cored Wire

Please scroll right to view all available information.
Flux
Number		 J-STD-
004C		 QQ-S-
571f		 Halogen
Free		 Residue Residue
Removal		 Preferred
Alloys		 Application/
Comments
CW-219 ROM1 "RA" No Colorless NC
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-232 ROM1 N/A No Light Amber NC
So
Sa*		 SnPb,
Pb-Free		 Extremely low spatter, excellent for robotic soldering where more activity is desired and cleanliness is important
CW-201 ROM1 "RA" No Light Amber NC
So
Sa*		 SnPb Electrical application, will solder copper, brass, nickel, etc.
CW-207 ROM1 "RA" No Colorless NC
So
Sa*		 Pb-Free Electrical application, will solder oxidized copper, brass, nickel, etc.
CW-209 ROM1 "RA" No Colorless NC
So
Sa*		 SnPb,
Pb-Free		 Electrical application, will solder oxidized copper, oxidized brass, nickel, etc.

= Primary Formulas

Key: NC=No-clean | So= Solvent | Sa= Saponification

Water Soluble

Please scroll right to view all available information.
Flux
Number		 J-STD-
004C		 QQ-S-
571f		 Halogen
Free		 Residue Residue
Removal		 Preferred
Alloys		 Application/
Comments
CW-301 ORH1 "OR" No Amber Water SnPb,
Pb-Free		 Water washed electronics applications
CW-305 ORH0 "OR" Yes Amber Water SnPb,
Pb-Free		 Next generation halogen-free water-wash, exhibits almost no corrosivity
CW-901 N/A "IA" No White Water/
Neutralizer		 SnPb,
Pb-Free		 Inorganic acid, water wash flux for stainless steel
Please scroll right to view all available information.
Diameter 0.032" 0.025" 0.020" 0.015" 0.010"
cross-
section
(sq in)		 0.000804198 0.00049084375 0.00031414 0.00017670375 0.000078535
ft/lb
63/37		 346 567 886 1575 3543
ft/lb
SAC305		 309 643 1005 1787 4021

= Primary Formulas

Standard Diameters and Packaging

Please scroll right to view all available information.
Inches mm equiv. Tolerance Packaging
0.008" 0.20 ± 0.002" 1/4 lb.
0.010" 0.25 ± 0.002" 1/4 lb.
0.015" 0.38 ± 0.002" 1/4 lb.
0.020" 0.50 ± 0.002" 1 lb.
0.025" 0.63 ± 0.002" 1 lb.
0.032" ~ 0.75 ± 0.002" 1 lb.
0.040" 1.0 ± 0.002" 1 lb., 5 lb.
0.062" ~ 1.5 ± 0.002" 1 lb., 5 lb., 20 lb.
0.120" 3.0 ± 0.002" 1 lb., 5 lb., 20 lb.

Alloys, Flux Percent by Weight, and Shelf Life

Please scroll right to view all available information.
Alloys High
Flux %		 Medium
Flux %		 Low
Flux %		 Very
Low
Flux %		 Shelf Life
(< 26°C & < 60%RH)
Warranted from DOM		 Practical**
SnPb 2.7 - 3.2% 1.7 - 2.2% 0.8 - 1.2%   10 years Indefinite
Pb-Free Alloys 3.3 - 3.7% 2.7 - 3.2% 1.7 - 2.2% 0.8 - 1.2% 10 years Indefinite
High Lead > 85% 1.7 - 2.2% 1.3 - 1.7% 0.8 - 1.2%   2 years Indefinite

Flux percent is measured by weight. The volume of flux compared to the weight percent varies with the density of the alloy.

*Indium Corporation can produce many of the alloys on its alloys list as cored wire. Alloys containing greater than 20% bismuth, greater that 8% antimony, or greater than 5% silver cannot be produced as flux-cored wire at this time.

**When stored at less than 40°C and less than 80% RH

Try our Flux-Cored Wire Calculator