NC264-5 No Clean Liquid Flux Features: - Broad Process Window - Fast Wetting for SN100C and SAC alloys - Halide-Free - Low Post Process Residues - Lead-Free and Tin-Lead Compatible Description: NC264-5 is an alcohol-based no-clean liquid flux formulated to offer a very wide process window for lead-free and tin-lead wave soldering operations. NC264-5 offers faster wetting for SN100C and SAC alloys than previously formulated fluxes and is compatible with a broad range of lead-free and tin-lead solder alloys. NC264-5 offers low post-process residues and has proven to reduce preventative maintenance requirements for spray fluxing applications. NC264-5 is designed to be a no- clean, non-visible residue flux, which can be cleaned if critical to the product application. Application: - NC264-5 is formulated for application via spray, foam, brush, mist, or dip. For spraying, NC264-5 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 500-1500 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 AIMs Common Flux Thinner to replace that which is lost due through evaporation. Process Control: Because of the low percentage of solids in this flux, control of specific gravity with automated equipment usually is found to be ineffective therefore, control via titration is necessary. AIMs Titration Kit has proven to be cost-effective, user friendly, quick and accurate. Titration should be carried out at least once an hour for flux foaming operations, or more often if large variances are found. Thermal Profile: C 200 150 100 50 0 0 20 40 60 80 100 Sec RATE of RISE PROGRESS THROUGH PCB TOP SIDE TEMP COOLDOWN 2-3 C / SEC MAX 66C - 77C ( 150 - 170F ) 87C - 115C ( 190F - 240F ) 4C 40 SECONDS JUST BEFORE WAVE Cleaning: NC264-5 can be cleaned, if necessary, with saponified water or an appropriate solvent cleaner. Please refer to the AIM No- Clean-Cleaner Matrix for a list of suitable cleaning materials. Handling: - NC264-5 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. - NC264-5 is shipped ready-to-use, no mixing necessary. - Do not mix used and unused chemical in the same container. Reseal any opened containers. Safety: - Use with adequate ventilation and proper personal protective equipment. - Refer to the accompanying Material Safety Data Sheet for any specific emergency information. - Do not dispose of any hazardous materials in non-approved containers. Physical Properties: Parameter Value Parameter Value J-STD-004 ROL0 Specific Gravity 0.80 (water = 1) Visual Clear, Colorless Flash Point < 10C Odor Aromatic (Slightly) Boiling Point 82C Solids Content 3.54% pH (1% solution /water) Acidic Acid Number 16.60-20.50 mg KOH/g flux Corrosion Testing: Parameter Requirements Results Copper Mirror (24 hrs 25C, 50%RH) IPC-TM-650-2.3.32 Low Halide Test (Silver Chromate) IPC-TM-650-2.2.33 Pass Surface Insulation Resistance: Reference Property Pass-Fail Criteria Results Control coupons >1E+9 at 96 and 168 hrs 3.15E+9 and 3.02E+9 Pass IPC-TM-650 Sample coupons pattern up >1E+8 at 96 and 168 hrs 3.03E+9 and 2.93E+9 Pass method 2.6.3.3 Sample coupons pattern down >1E+8 at 96 and 168 hrs 4.26E+8 and 6.03E+8 Pass 85C / 85% R.H. Post-test visual inspection No dendrite growth or corrosion Pass Electromigration: Test Conditions Specification Results Electromigration Bellcore 65C/85% R.H. 500 hrs Control Rf/Ri > 0.1 7.67E+10 / 5.53E+10 Pass GR-78 Flux Requirements 65C/85% R.H. 500 hrs Sample Rf/Ri > 0.1 1.69E+11 / 2.30E+10 Pass Manufacturing and Distribution Worldwide Americas +1-401-463-5605 Europe +44-1737-222-258 Asia-Pacific +86-755-2993-6487 info aimsolder.com www.aimsolder.com The information contained herein is based on data considered accurate and is offered at no charge. Product information is based upon the assumption of proper handling and operating conditions. All information pertaining to solder paste is produced with 45-micron powder. Liability is expressly disclaimed for any loss or injury arising out of the use of this information or the use of any materials designated. Please refer to