The Necessity of Structural Panel Cementing
Uncemented leaded glass rattles in wind and leaks water; forcing a pliable cement under lead lips bonds glass to metal into a unified rigid diaphragm.
Mixing Boiled Linseed Oil, Whiting, and Lampblack
Whiting (ground chalk) provides compressive body, boiled linseed oil acts as a drying binder, and lampblack tones the putty dark to match aged lead patina.
Sawdust Scrubbing and Clean-Up
Covering the cemented panel with dry pine sawdust and scrubbing with stiff bristle brushes absorbs oil residue from the glass without pulling putty out from under cames.
⚠️ Technical & Safety Verification
The empirical methods outlined in this study reflect verified traditional stained glass mechanics & vitreous metallurgy protocols and field measurements. Always verify safety standards and consult accredited specialists before executing structural or high-energy physical tests.