Sil-Fos 15 by Lucas Milhaupt, 1 LB, 15 percent silver, part #95150, strips

For use where close fit-ups cannot be maintained and joint ductility is important. Recommended joint clearance: .002″ to .005″ (.051 mm to .127 mm). Slow flow. The only phos/copper silver filler metal available in strip or sheet form.

Sil-Fos® alloys are Copper based filler metals that are self-fluxing on copper by virtue of their phosphorous content. Because of their self-fluxing nature, you save time and money by eliminating the steps necessary to flux a joint before brazing

Lucas-Milhaupt, Inc. 5656 S. Pennsylvania Ave., Cudahy, WI 53110, USA, http://www.lucasmilhaupt.com, HVAC, Plumbing