Green Paste is said to help eliminate cross-contamination between leaded and Pb-free boards in a mixed production environment. Is visually green, permitting operators to distinguish it from gray-colored SnPb paste. Color remains until reflowed, leaving normal metallic joint appearance. Residues are clear, but fluoresce under black light. Available in SAC 305, Sn100e for no-clean and water-soluble flux types, and others.

Qualitek International Inc., www.qualitek.com