NC-771 – No-Clean Rosin-Free Flux Pen
NC-771 is an alcohol-based, rosin-free, no-clean flux in an applicator pen. NC-771 is a multi-purpose flux that can be used for rework or almost any solder application that requires the addition of a liquid flux. Compatible in both Lead-Free & Tin-Lead applications.
NC-771 is an alcohol-based, rosin-free, no-clean flux in an applicator pen. NC-771 is a multi-purpose flux that can be used for rework or almost any solder application that requires the addition of a liquid flux. Compatible in both Lead-Free & Tin-Lead applications.
- Passes J-STD-004A SIR in the un-reflowed state
- Halogen-free
- Benign non-sticky post-soldering residue that will not interfere with probe testing
- Excellent wetting
- Wide process window
- Clear appearance
- Flashpoint (TCC) 12°F
- Each flux pen contains 10ml of flux
Physical Properties
| Test | Result |
| Classification J-STD-004A | ORL0 |
| Specific Gravity @ 25°C | 0.859 |
| Acid Value | 38mg KOH/gm |
| Flux Solids | 5% |
| SIR | Pass |
| Copper Mirror | Pass “L” |
| Silver Chromate | Pass |
| Fluoride Spot | Pass |
| Corrosion | Pass |
Product Data Sheet: NC-771 Product Data Sheet


