Martin Marietta Magnesia Specialties provides magnesium oxide for use in the manufacture of specialty glass formulations such as LCD glass and fiberglass.



MagChem® magnesium oxide raises the viscosity of the glass melt ensuring a more precise mold, and reducing breakage. Because of its properties, fiberglass is used primarily in FRP (fiberglass reinforced plastic) products such as bathroom showers, tubs and windmill blades.

MagChem® magnesium oxide products combine low reactivity, high quality, consistency, and fine particle size for use as a processing aid in the production of liquid crystal display (LCD) substrate found in smartphones, tablets, televisions, and computer monitors.

Common Applications

  • LCD Glass
  • Fiberglass

For more information regarding your application or to place an order, please call 800-648-7400 (inside the U.S.) or +1-410-780-5500. Or, Contact Us with your questions.