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Features:
- Resin and Halide Free
- Very Good Wetting
- Reduces Bridging
- Wide Process Window
* Passes BELLCORE (Telecordia GR-78-Core Flux Requirements) and IPC (product testing summary on third page, data available upon request)
** Click here to download the 264-5 Liquid Flux Product Booklet (in Acrobat pdf)
Description:
NC 264-5 is a resin-free, halide-free, wave solder flux designed to enhance wetting and prevent bridging during the wave soldering process. NC 264-5 offers an enhanced activity level, as well as lower surface tension than other flux chemistries. NC 264-5 performs well with bare copper, solder coated and organic coated PWBs. This material leaves negligible post-process residues that are non-conductive and do not require post-process cleaning for most assemblies.
Physical Properties:
SOLIDS CONTENT: 3.5%
FLUX DENSITY: .80 ± .01
ACID NUMBER: 19.4MG KOH/GRAM ± .5
Handling:
· NC 264-5 has an unopened shelf life of 1 year when stored at room temperature.
· Do not store near fire or flame. Keep away from sunlight as it may degrade product.
· NC 264-5 is shipped ready-to-use. No mixing is necessary.
· Do not mix used and unused chemical in the same container. Reseal any opened containers.
Flux Application:
NC 264-5 is formulated for application via spray, foam, brush, mist, or dip.
For Spraying, NC 264-5 is ready to use directly from its container, no thinning required. When spray fluxing, it is imperative that proper flux coverage and uniformity be achieved and maintained. A dry flux coating of 500 to 1500 micrograms per square inch is recommended as a starting point.
When Nitrogen sealed wave solder equipment is used, it is generally necessary to apply slightly more flux than normal as a result of excess drying due to the extended length of the equipment.
When Foaming, air stones should be supplied with compressed air, free of oil and moisture. Adjust foam head to achieve uniform bubble size for optimum coverage. During foaming applications, it is periodically necessary to add AIM’s Common Flux Thinner to replace that which is lost due through evaporation.
Monitoring and controlling the acid number is recommended for maintaining the flux composition. The acid number should be maintained between 18.9 –19. 9MG KOH/GRAM or 20-25 drops using AIM’s N.020 Titration Kit.
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