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The Making of Mirrors
- May 18, 2017 -

Raw materials and requirements

Glass should be flat and intact, with no bubbles in the middle of transparent glass.

Silver nitrate, content above 99.5%.

Ammonia, the concentration is 25-28%.

Potassium sodium tartrate, chemical purity.

Production method

Cleaning Glass: According to the specifications of the glass, first with tap water rinse both sides, and then the iron pink with water coated on the side to be plated, to dry after the iron pink, washed clean. Then scrub the surface of the glass with a tiny amount of tin chloride solution. Rinse and rinse the residual chlorinated stannous. Finally, rinse the glass with clean water (preferably distilled).

Silver-plated: Put the clean glass flat on the horizontal wooden frame or the wood strip, take the silver liquid one part and the reducing liquid to stir and pour evenly. The liquid medicine is not flowing away. About 2 cents per square metre liters. After the glass is gradually reflected in the silver mirror, the excess of the liquid is poured out, rinse with water, pour 10 per thousand of gelatin to dry. Then apply a coat of red iron primer or other antirust paint to the mirror.

Liquid Formula

Silver Liquid: Distilled water (can also be) 2500 ml, silver nitrate 25 grams, ammonia 18.5 ml (clarified by chemical reaction).

Also liquid: distilled water (can also be) 2500 ml, potassium tartrate sodium 25 grams, on the liquid heating to clarify and then into the silver nitrate 0.5%, liquid medicine after the standby.

Gelatin liquid: Water 1000 ml, gelatin 10 grams, water vapor.

Red Iron Primer plus a proper amount of banana water solution.

The principle of mirror imaging

Whether it is mirror or mirror (concave or convex), light will obey Pating and cover mirrors, reflecting light into the eye to form a vision in the retina. In a planar mirror, when a beam of parallel beams touches a mirror, the whole will change forward in parallel mode, when the image is the same as the eye sees.