TECHNICAL DATA SHEET 268 Flux-Cored Wire Zero-Halogen, No-Clean Cored Wire for Robotic & Manual Soldering Product Description Kester 268 Flux-Cored Wire is a zero-halogen wire optimized for robotic soldering applications. With its unique chemistry system, 268 provides consistent workability performance for both robotic and manual soldering in the electronics industry, with performance equivalent to conventional halogen/ halide-based systems. 268 provides a clean release which prevents occurrences of bridges and protrusions, even in narrow-pitch automated drag soldering. The use of 268 results in a clear post-soldering residue without the need for cleaning. 268 is classified as Type ROL0 flux under J-STD-004B specifications. 268 is zero-halogen and halide- free with no intentional addition of bromine and chlorine, conforming to the strictest requirements of IEC 61249-2-21, JPCA-ES-01 and IPC-410B specifications. For a list of compatible products, visit Kesters website or contact Kester Technical Support. Performance Characteristics: Low occurrence of solder ball spatter Conforms to halogen-free requirement of IEC 61249-2-21, JPCA-ES-01 and IPC-410B specifications with no intentionally added halogens and halides Low smoke and odor Excellent wetting speed and spread superior to halogenated materials Clear residue, resulting in excellent joint aesthetics after soldering Excellent surface wettability and spreading suitable for robotic soldering and manual soldering Excellent manufacturing consistency and uniform quality, minimizes defects for all types of soldering Classified as ROL0 per J-STD-004B RoHS Compliance This product meets the requirements of the RoHS (Restriction of Hazardous Substances) Directive, 2002/95/EC Article 4 for the stated banned substances. (Applies only if this core flux is combined with a lead-free alloy.) Reliability Properties Copper Mirror Corrosion: Low Tested to J-STD-004B, IPC-TM-650, Method 2.3.32 Corrosion Test: Low Tested to J-STD-004B, IPC-TM-650, Method 2.6.15 268 Flux-Cored Wire Technical Data Sheet Issue: 17 May 2021 Page 1 of 3 TECHNICAL DATA SHEET Silver Chromate: Pass Tested to J-STD-004B, IPC-TM-650, Method 2.3.33 Quantitative Halides: None Detected Tested to J-STD-004, IPC-TM-650, Method 2.3.28.1 Quantitative Halogens: None Detected Tested to IPC-TM-650, Method 2.3.35, JPCS- ES-01, prEN14582 and IEC 61189-2 Test 2C12 specifications Surface Insulation Resistance (SIR) 40 C/90% RH, IPC (Typical): Pass Tested to J-STD-004B, IPC-TM-650, Method 2.6.3.7 Availability 268 is available in SAC 305 and K100LD lead-free alloys and Sn63Pb37 in 3.3% flux on a robotic spool. For low-cost, lead-free soldering applications, the K100LD alloy is ideal. Wire diameters typically range from 0.25 to 1.6 mm (0.010 to 0.062 in). For other alloys and flux percentages, please contact Kester Customer Service. Please refer to