NC275LR Low-Residue Liquid Flux

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.

Features:

• 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

Application:

• 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.

Cleaning:

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.

Handling:

• 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: