MG Chemicals 4860P Sn63/Pb37 No-Clean Solder Paste is made from a blend of high purity, non-recycled tin and lead alloy powder combined with a no-clean flux to form a paste. This solder paste is designed for surface mount applications and provides high tack force and good wettability. Post-soldering residues are transparent, non-conductive, non-corrosive, and highly insulated. MG Chemicals 4860P Sn63/Pb37 No-Clean Solder Paste is designed for use in high-speed printing, especially with SMT solder paste printers, with ultrafine stencils as small as 0.3mm.