One example where quartz glass tubes are used is in the manufacturing of halogen or xenon bulbs. The glass must resist high temperatures and quick temperature changes. At the same time it should not create any optical distortion.

Quartz glass tubes are manufactured by melting silica sand at temperatures of 2,000 to 2,200 °C and drawn over a mold at the bottom of the furnace.

The heat shield for these furnaces are made out of bricks and granular products in zirconia.