A broken pane in a stained glass window automatically draws the eye, no matter how beautiful the overall design. Putting in a new piece takes time and care but gives a very satisfying result. Other minor repairs can have an equally reviving effect on the window.
Many houses have stained glass panels in their windows and doors. They are usually positioned so that the light brings out the full richness of the colors but this also shows up dirt and damage. Windows and doors are vulnerable to wear and tear from the weather outside and from knocks and vibrations inside. Panes of glass can become cracked, and the lead came (lead strips used to hold the glass in place) can be split or weakened.
Small faults are often left because they seem difficult to mend, yet with patience and concentration, they can be repaired and a good clean can have an astonishing effect.
Cleaning
Clean gently, and avoid putting pressure on the glass, particularly if the window is old. First dust the surface with a soft-bristled paint brush. This will get the dust and most of the dirt out of the numerous corners and crevices around the leading.
For extra sparkle and to remove stubborn marks, use a solution of liquid detergent and a few drops of ammonia in hot water Wipe over the glass with a chamois leather, then remove any traces of the solution with hot water. Finally, wipe with a damp chamois.
Repairing
Small repairs such as covering cracks or replacing a couple of pieces of glass ¡ª can be carried out with the window in place. For large scale repairs, it will be necessary to take the window out of its setting so that the job can be done on a work surface.
If a window is very old or valuable, it is better to seek professional advice, unless you have a great deal of experience of working with stained glass. Always be careful when working with glass, as edges and slivers can give nasty cuts.
Covering cracks
With a small crack, it may not be worth the effort of replacing the glass. However, even a small crack is a weak point and if left untreated. It is likely to crack further. Adhesive can be used to bind and strengthen small cracks. Use either an epoxy resin or, better still, a clear anaerobic glue (which will not discolor but needs careful handling as it can set in just a few seconds).
Small, clean breaks can be filled in the same way. Once treated with adhesive, the crack can be hidden under a strip of self-adhesive lead.
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