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NS Chemical Products
Rosin Flux
A flux that is highly effective and reliable when it comes to soldering printed circuit boards.
This flux can be used unwashed. Should you choose to wash before use, please use an alcohol-based cleaning agent, or an alternative fluorine-based cleaning agent.
Packaging units: a 14kg can
Conventional Properties
Item NS-828B NS-828B-ne NS-824 NS-829 Test
Method
Type Matte
Type
Matte
Type
Matte
Type
Varnish
Type
Color Tone Champagne Champagne Champagne Champagne Observations
Specific Gravity(20) 0.834 0.826 0.821 0.840 JIS-Z-3197 6.4
Solid Content WT% 21 17 14 20 145 15 minutes
Halogen Content WT% 0.10 0.08 0.07 0.07 JIS-Z-3197 6.5
Copper Plate Corrosion No Corrosion No Corrosion No Corrosion No Corrosion JIS-Z-3197
Insulation
Resistance
()
Initial
Value
≧1x1012 ≧1x1013 ≧1x1011

1x1013

JIS-Z-3197 6.8
After
96 hours
≧1x1011 ≧1x1011 ≧1x1011 ≧1x1011
Electromigration
Test
()
Initial
Value
≧1x1012 ≧1x1013 ≧1x1011 ≧1x1013 JIS-Z-3197 6.9
After
96 hours
≧1x1011
No Corrosion
≧1x1011
No Corrosion
≧1x1011
No Corrosion
≧1x1011
No Corrosion
Spreading Test
(%)
≧85 ≧85 ≧85 ≧90 JIS-Z-3197 6.10
pH 5.0 3.0 3.0 3.0 pH meter
Acid Number
mgKOH/g
40 32 29 29 JIS-Z-5902 5.4
Flash point 12 12 12 12
Special Diluents NS-700 NS-700 NS-700 NS-700
Active
Temperature
Range
200 to 300 200 to 300 200 to 300 200 to 300
Applications Foam, Dipping, Brush Finishing Foam, Dipping, Brush Finishing Foam, Dipping, Spray, Brush Finishing Foam, Dipping, Brush Finishing
Special Features Compatible with Wave Soldering Compatible with lead-free solder Compatible with lead-free solder Even using an alternative fluorine-based cleanser, no whitish residue remained.
Rosin Flux
Polymer Molecule Plastic No-Clean Flux
Low Residue No-Clean Flux
Flux for BGA/CSP Solder Ball
Organic Acid Water Soluble Flux (for electronic use)
Inorganic Acid Water Soluble Flux (for conventional use)
Rosin Based Flux for Lead-Free Wave Soldering
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