P. Kay Metal's roots are in industrial solder manufactured since 1978. From automotive to costume jewelry, every bar, notch bar, ingot, and pound of wire, is made using the same stringent quality procedures. P. Kay's industrial line of solder is manufactured to conform to ASTM standards. Custom and standard alloys are available in bar and wire form. As with all of its products, P. Kay certifies the quality of its industrial solders with a chemical lot analysis.