Glass glazing surfaces

Highlight Test. A simple, empirical estimate of the chemical resistance of a surface (of glass, glazes etc) by noting the decrease in sharpness of reflected images in it. 

Many ways have been demonstrated for effectively generating surface compressive layers, some of which have been applied commercially. These include thermal tempering, ion exchange at temperatures either above or below the glass transition, surface crystallization, lamination, and glazing. 

The quantitative determination of stress requires a calibrated relative retardation S to compensate the measured one S (S + S = 0), and we shall use from here onward the term compensator . As stated above, generally we measure a stress difference that reduces to one component only when the other one is null. This assumption is valid, at the edge of a glazing (edge stress meter), and when the light beam propagates at the surface of the glass sheet (surface stress meter). Both instruments are described in the two next sections. 

It also refers to glazing on top of a glazed surface. When the organic component in a paint is replaced by glass, the paint is known as enamel paint. 

Adhesive data sheets often include peel strength values. As would be expected these vary considerably according to the adhesive/adherend chosen and the problem seems to be pronounced with very smooth surfaces such as those found on glass, glazed... 

Sucrose is widely used in the food industry to sweeten, control water activity, add body or bulk, provide crispness, give surface glaze or frost, form a glass, provide viscosity, and impart desirable texture. It is used in a wide variety of products from bread to medicinal symps. 

Vitreous ceramics are made waterproof and strengthened by glazing. A slurry of powdered glass is applied to the surface by spraying or dipping, and the part is refired at a lower temperature (typically 800°C). The glass melts, flows over the surface, and is drawn by capillary action into pores and microcracks, sealing them. 

Red lead (Pb304) is manufactured on the 20000-tonne scale annually and is used primarily as a surface coating to prevent corrosion of iron and steel (check oxidation-reduction potentials). It is also used in the production of leaded glasses and ceramic glazes and. very substantially, as an activator, vulcanizing agent and pigment in natural and artificial rubbers and plastics. 

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