Fabrication of Mirror
     It is important for professionals to take care during every step of fabrication to maintain the integrity of the back and edges of a mirror. Any major damage to these two areas results in a worthless product. Equally important however is cleanliness in the fabrication shop. Dirt, grit, solvents and other contaminants can lead to damage not only to the mirror's surface but also to the backing. Some of the following tips also apply to other areas but are worth repeating:

• Always use gloves when handling mirrors.
• Vacuum or sweep the cutting tables with a stiff brush regularly to keep dust down and to eliminate glass grip and particles that can scratch mirrors.
• Do as much fabrication in the shop as possible. This reduces the possibility of on-site damage.
• Locate fabrication areas away from parts of the shop where mirrors could be exposed to solvents, heavy-duty cleaners and other materials that can damage the backing.
• Be sure that mirrors, especially backs and edges, are thoroughly washed after fabrication.
• After fabrication and cleaning of the edges, the glass shop should apply an approved sealant to all edges. This provides the mirror with additional protection from moisture, chemicals or atmospheric penetration of the backing.
• When grinding and polishing edges remember that a wet belt sander is recommended tool. If using dry belts, a recommended belt lubricant can be used but be aware that some lubricants contain chloride contaminants. The best recommendation is the use of clean, fresh water. Also remember to keep the heat generated by sanding and swiping to a minimum to prevent damage to the mirror backing.
• Diamond wheels should always be dressed and maintained in good cutting condition. Set wheels so as not to grind excessively on the paint side and edge grind only in one direction. Diamond wheels should also be used with clean water as a lubricant. If coolant is used, it should be clean, pure and have a pH of close to seven.
• Try to retain at least one factory edge when trimming, preferably at the bottom where the mirror is subject to puddling.
• Do not slide mirror lites one over another. Scratching of the surfaces can and does result.
• Be sure mirrors are inspected before and after fabrication and that there is adequate light in the inspection area.

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