Glass Glossary |
Abrasion
A method of shallow, decoration grinding using a diamond wheel. The decorated areas are then left unpolished.
Absorptance
The ratio of solar radiation versus total radiation absorbed by a glazing system.
Acid Etching
A process, manly used for glass decoration, where the glass surface is treated with hydrofluoric acid. Acid-etched glass has a distinctive, uniformly smooth and satin-like appearance.
Acid Polishing
This process is used to remove obscurities from etched surfaces.
Acoustic Insulation
The ratio of external sounds passing through a glazing surface.
Active coating material
Whose properties are affected by external stimulus.
Air infiltration
The ratio of air leaking through cracks in building.
Air leakage rating
Air infiltration ratio
Alarm Glass
Is a special laminated glass designed and manufactured for security purposes. The interlayer is embedded with a very thin wire and then «sandwiched» between two or more sheets of glass.
Anneal
A process used to cool formed glass at controlled temperature rates to prevent thermal stresses.