SMT Equipment

NC275LR Low-Residue Liquid Flux

Company Information:

AIM is a leading global manufacturer of tin-lead and lead-free solder assembly materials for the electronics industry.

Montreal, Quebec, Canada


  • Phone +1-514-494-2000

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NC275LR Low-Residue Liquid Flux

NC275LR Low-Residue Liquid Flux


NC275LR Low-Residue Liquid Flux


Solder Materials

Offered by:

AIM Solder


NC275LR Low-Residue Liquid Flux Description:

NC275LR is a water-based, halide-free, no-clean liquid flux formulated to offer a very wide process window allowing for extremely good wetting, even to difficult-to-wet materials. NC275LR offers a broad activation range, proving to be an excellent flux for a variety of process parameters and applications, including lead-free wave soldering with tin-silver-copper, tin-silver, tin-copper, and other alloys. NC275LR offers low post-process residues and has proven to reduce preventative maintenance requirements for spray fluxing applications. In addition, NC275LR offers low-fuming and fast solvent evaporation. NC275LR is designed to be a no-clean, non-visible residue flux, which can be cleaned if critical to the product application.


  • VOC Exempt According to ASTM D3960-98
  • Low Post Process Residues
  • Passes IPC SIR-004 B
  • Lead-Free Compatible
  • Broad Process Window
  • Excellent in Extended Dwell Time
  • Halide-Free
  • Excellent Wetting


  • NC275LR is ready to use directly from the container for spray systems.
  • When spray fluxing, it is imperative that proper flux coverage and uniformity be achieved and maintained. A dry flux coating of 500 to 2000 micrograms per square inch is necessary.
  • When complete 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.


NC275LR can be cleaned, if necessary, with water, and enhanced cleaning can be achieved through the use of a saponifier. Deionized water is recommended for the final rinse. A temperature of 38ºC - 65ºC (100° - 150°F) is sufficient for removing any residues. An in-line or other pressurized spray cleaning system is suggested, but is not required.


  • NC275LR has a sealed shelf life of nine (9) months at room temperature.
  • Keep away from sunlight as it may degrade the product.
  • NC275LR is shipped ready to use; no mixing is necessary.
  • Do not mix used and unused chemical in the same container. Reseal any open containers.
  • Optimal storage condition is 25°- 30°C (75° - 85ºF), acceptable storage conditions range from 4°- 40° C (40 - 100ºF).

Physical Properties:







Solids Content

1.35 ± .35

Acid Number

15-18 mg KOH per gram flux

Specific Gravity

1.00 ± 0.05

pH (1% solution /water)

2.96 ± 0.80

NC275LR Low-Residue Liquid Flux was added in May 2012

NC275LR Low-Residue Liquid Flux has been viewed 455 times

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