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|Tip 19 Durability of copper-tape stained glass panel
A stained glass panel which was made by copper-tape technique was left on the roof of a storage box in 1994. It was placed flat on the roof and never been touched since. And, 15-years later, it was recovered in order to check the surface condition of the panel. Click each photo to enlarge.
|It has been left in this position for 15 years. It was never touched since. The temperature gets up to 37 degrees C in summer.||It snows in winter. However, the temperatre only goes down to -5 degrees C.||The surface condition after 15 years. It rained heavily few days before recovery and the surface was fairly clean.|
|The panel was turned up side down. The condition of back surface looks very good.||The panel was cleaned thoroughly front and back with a sponge and detergent.||On the front side, the color of lead surface has changed to grey. Beside that, the condition of the panel was relatively good after 15 years.|
|Enlarged view of lead surface. Very little patina left.||Condition of back side. Patina is present in good condition except for some small area.||Enlarged view of lead surface of back side.|
|Stained glass viewed with light from behind. The glass itself has not been affected and it looks just like new.|