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Why do glass have bubbles
Generally, the raw materials of glass are fired at a high temperature of 1400 ~ 1300 ℃. When the glass is in a liquid state, the air in it has floated out of the surface, so there are few or no bubbles. However, most of the cast glass artworks are fired at a low temperat...Read more -
Glass material analysis
The main components of colored glass are purified quartz sand and potassium feldspar, albite, lead oxide (the basic component of glass), saltpeter (potassium nitrate: KNO3; cooling), alkali metals, alkaline earth metals (magnesium chloride: MgCl, melting aid, increasing durability), aluminum oxid...Read more