ROBAX® glass-ceramic has a thermal endurance far exceeding that of normal tempered glass. Tempered glass is generally limited to applications that do not exceed 500F. However, ROBAX® is designed to operate at temperatures ranging from minus 400F. to plus 1400F.  Glass-ceramic was invented in the 1960s. Its thermal endurance and stability make it ideal for many products: from stove tops and cookware, to missile nose cones and astronomical telescope mirror substrates. Transparent glass-ceramic, introduced in 1970s, is much more difficult and expensive to make than ordinary glass. As a result, it also has a different appearance including color, surface texture, and some small bubbles or inclusions that are natural to its composition and have no effect on its strength or performance.

In the photo above, we've placed a cutting torch below the ROBAX® and heated it until red-hot. Then cold water was poured on the glass from above - with NO breakage.

Because of its special composition and processing this unique material can withstand a quench into ice water from red hot temperatures. With ROBAX® Glass-Ceramic windows in your stove or fireplace, you can enjoy the fire view with the assurance the window has been designed with a superior margin of safety for your home and your family.

PHYSICAL PROPERTIES OF 1400 DEGREE ROBAX® TRANSPARENT GLASS-CERAMIC

NOW .... One glass can supply all of your high temperature requirements. Unlike tempered glass, 1400 Glass-Ceramic is unstressed. It can easily be cut and finished using standard glass cutting tools.

This is an excellent replacement in most applications for any of the following glasses - PYREX®, BOROFLOAT® , TEMPAX® , VYCOR® , PYROCERAM® , and NEOCERAM® . Typical applications include--

Wood Stove, Pellet stove and Coal Stove Windows. Wood and Gas Fireplace Doors. Oven Door Windows. High-intensity Light Covers. Furnace Observation Windows. Barbecue Grill Windows. Spark and Flame Guard Panels.