Kester Fluxes for Lead-Free Catalog Page
Fluxes for Lead-Free
Lead-free wave and selective soldering systems require exposing the flux to slightly higher soldering temperatures. Lead-free alloys traditionally wet metal surfaces more slowly than tin-lead.
Kester liquid fluxes for lead-free assembly have new activator packages to enable rapid
wetting and hole-filling, ensuring reliable product output.
*Formula 985M 959T 2220-VF VOC-Free 2235
Application Spray or Wave Fluxer Spray or Foam Spray, Wave or Foam Spray or Foam
Halide Content % Halide - Free Halide - Free 1.6 1.6
Specific Gravity 0.805 0.794 1.060 0.856
Solids % 3.6 2.9 7 11
Compliant
No-Clean No-Clean Water-Soluble Water-Soluble
IPC/J-STD-004B
Flux Designator ROL0
IPC/J-STD-004B
Flux Designator ORL0
IPC/J-STD-004B
Flux Designator ORH1
IPC/J-STD-004B
Flux Designator ORH1
Kester Part # Description Packaging
63-0004-0985
64-0004-0985
65-0004-0985
63-0020-0959
64-0020-0959
65-0020-0959
63-0056-2220
64-0056-2220
65-0056-2220
63-0000-2235
64-0000-2235
65-0000-2235
*These products are designed specifically for high performance lead-free applications.
985M No-Clean 1 gallon
985M No-Clean 5 gallon
985M No-Clean 53 gallon drum
959T No-Clean 1 gallon
959T No-Clean 5 gallon
959T No-Clean 53 gallon drum
2220-VF VOC-Free Water-Soluble 1 gallon
2220-VF VOC-Free Water-Soluble 5 gallon
2220-VF VOC-Free Water-Soluble 53 gallon drum
2235 Water-Soluble 1 gallon
2235 Water-Soluble 5 gallon
2235 Water-Soluble 53 gallon drum
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800 253 7837 | WWW.kester.com
8
No-Clean Fluxes
Formula 985M 959T 951 979 977
Flux Type Low Solids
Percent Solids 3.6 2.9 2.0 4.2 3.25
VOCs (g/liter) 776 770 792 0 0
Specific Gravity 0.805 0.794 0.814 1.015 1.012
Product
Characteristics
Compliant
Specifications
Residue
Removal
(not normally
required)
Thinner 4662 4662 110 De-ionized Water De-ionized Water
Flux Test Kit PS-20 PS-22 PS-22 PS-20 PS-20
Designed for the wave
hole fill on thick board
IPC/J-STD-004B Flux
No-Clean
soldering applications
and gives excellent
assemblies.
Telcordia Issue 1
GR-78-CORE &
designator ROL0
Wash with Kester’s
#5768 Bio-Kleen
saponifier at 2%
concentration.
No-Clean Fluxes
Alcohol Based VOC-Free
Designed for the
wave soldering of
conventional and SMT
board assemblies.
Developed to minimize
the formation of micro-
Telcordia Issue 1
GR-78-CORE &
IPC/J-STD-004B Flux
designator ORL0
Wash with Kester’s
®
#5768 Bio-Kleen
saponifier at 2%
concentration.
Low Solids
No-Clean
solderballs.
®
Rosin-Free
Low Solids, No Clean
Very low solids,
rosin free, foam
and spray application
flux. Practically
no residue after the
soldering process.
Telcordia Issue 1
GR-78-CORE &
IPC/J-STD-004B Flux
designator ORL0
Wash with Kester’s
#5768 Bio-Kleen
saponifier at 2%
concentration.
®
VOC-Free
No-Clean
Developed to reduce bottomside
micro-solder balling and bridging
on glossy laminates and between
connector pins. Designed as a spray
flux, 979’s activation system provides excellent wetting producing
complete and consistent hole-fill.
Telcordia Issue 1
GR-78-CORE &
IPC/J-STD-004B
Flux designator ORL0
Wash with hot de-ionized water
at 49-60°C (140-160°F) or use
1% solution of Kester’s #5768
Bio-Kleen
VOC-Free
No-Clean
Developed to reduce bottomside
micro-solder balling and bridging.
The wetting system is designed to allow for a larger process window and
can survive the longer dwell times
in extremely turbulent chip waves.
Designed for spray applications.
Telcordia Issue 1
GR-78-CORE &
IPC/J-STD-004B
Flux designator ORL0
Wash with hot de-ionized water
at 49-60°C (140-160°F) or use
®
1% solution of Kester’s #5768
Bio-Kleen
®
Kester Part # Description Packaging
63-0000-0951
64-0000-0951
65-0000-0951
63-0004-0985
64-0004-0985
65-0020-0959
63-0020-0959
64-0020-0959
65-0020-0959
63-0000-0977
64-0000-0977
65-0000-0977
63-0000-0979
64-0000-0979
65-0000-0979
951 No-Clean 1 gallon
951 No-Clean 5 gallon
951 No-Clean 53 gallon drum
985M No-Clean 1 gallon
985M No-Clean 5 gallon
985M No-Clean 53 gallon drum
959T No-Clean 1 gallon
959T No-Clean 5 gallon
959T No-Clean 53 gallon drum
977 VOC - Free No Clean 1 gallon
977 VOC - Free No Clean 5 gallon
977 VOC - Free No Clean 53 gallon drum
979 VOC - Free No Clean 1 gallon
979 VOC - Free No Clean 5 gallon
979 VOC - Free No Clean 53 gallon drum
WWW.kester.com | 800 253 7837
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