Kester 278 Flux-Cored Wire Product Overview:

Alloy: Innolot

Core Size: 58

Flux: 2.2%

250 g Robo Spool

Kester 278 Flux-Cored Wire with Innolot Alloy is a halogen-free wire optimized for high performance applications, such as under-the-hood automotive. 278, with its fast wetting and low spattering, performs admirably when benchmarked against conventional halogen/halide-based systems, enabling its use in drag soldering and minimizing cycle time in robotic and manual soldering. The use of 278 results in a clear post-soldering residue without the need for cleaning. 278 is classified as Type ROL0 flux under J-STD-004B specifications. 278 is halogen-free and halide-free, conforming to the strictest requirements of IEC 61249-2-21, JPCA-ES-01 and IPC-410B specifications.

Performance Characteristics:

• Very low spatter
• Low smoke and odor
• Excellent wetting speed; superior to halogenated materials
• Conforms to halogen-free requirement of IEC 61249-2-21, JPCA-ES-01 and IPC-410B specifications
• Classified as ROL0 per J-STD-004B

Cleaning

The 278 series possesses excellent fluxing ability. The flux residues are non-corrosive, non-conductive and do not require removal in most applications under normal conditions of use. IPA will not clean the residues off the surface of the circuit board after the soldering process. If removal is required, a saponifier or cleaning agent specifically designed to clean a no-clean flux is required to clean the residues.