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ITO Coated Glass


Diamond Coatings offer a comprehensive range of ITO coated glass types & expert guidance on suitable glass substrates for ITO slides, coverslips and many other applications. Substrates can be provided:

  • Fully Dimensioned
  • Radius
  • Profiled with chamfer edges to suit customer requirements

Using the latest in glass processing technology, we can also provide substrates with holes and cut-outs as required. Substrates can also be supplied polished to meet specific optical and flatness requirements.

In addition to our ability to supply thermally and chemically toughened Indium Tin Oxide coated slides & coverslips, we can also offer further enhancements including anti-glare finishes and/or printed graphics/borders.

ITO Coated Glass Substrate Options

Our range of substrate options currently includes:

Soda Lime Glass & Toughened Options

The most commonly used and, due to low processing cost, most inexpensive options is Soda Lime Glass. Created by drawing glass over tanks of molten Tin, this type of glass can be supplied as standard or thermally/chemically toughened and cut to various sizes.

The air side (the side facing away from the tin during the production process) is typically both flatter & smoother than the side facing the molten tin.


A low-soda type glass, Borosilicate glass primarily consists of:

  • Calcium Oxide – 1%
  • Sodium Oxide – 8%
  • Potassium Oxide – 8%
  • Boric Oxide – 10%
  • Silica – 70%

Although making this type of glass is considerably more difficult than making traditional glass, it is highly economical to produce due to its superior durability. A crown glass in optical terms, Borosilicate glass offers:

  • Low Dispersion
  • Relatively low refractive indices (1.51 – 1.54 across the visible range)
  • Chemical & heat properties of exceptional use in chemical laboratory, military and other applications

With very low thermal expansion coefficient (~3×10-6/°C at 20 °C), Borosilicate glass is a popular choice for flat TFT screens and diverse critical display equipment.

Fused Quartz & Silica

Fused Quartz and Silica glass primarily contains Silica in a non-crystalline, or amorphous, form. These glass types are manufactured using several different processes.

Fused Quartz – To produce Fused Quartz glass (which is usually transparent), high-purity naturally occuring Quartz is melted at around 2000º C within an electric (electrically fused quartz) or a gas/oxygen fuelled (flame fused quartz) furnace.

Fused Silica – Often referred to as higher standard Fused Quartz, Fused Silica is produced by melting a high-purity Silica sand feedstock within an electric furnace. The resulting material is translucent or opaque.


Widely used in high transmission displays, BK7 glass has, when uncoated, a standard optical performance of 93% (average). Application of anti-reflective coatings can further improve this transmission.

Produced in blocks, cut into required thicknesses and polished to required dimensions on both sides, BK7 is a comparatively expensive material.

Coatings & Other Options

Depending on requirements, substrates may be coated with Diamox ITO or Diamox+ Index Matched ITO and/or anti reflective coatings.

Diamox ITO Data Sheet

Diamox+ Index Matched ITO Data Sheet

Diamond AR (Anti Reflective) ITO Data Sheet

OLED Grade ITO Glass Data Sheet

More Information

To learn more and/or discuss the specific optical requirements for your application, call us on (480) 999-3456 today. Note: The number to call from anywhere outside the U.S. is: 001 (480) 999-3456.


Questions? Contact us?

Operating ultra-modern magnetron sputtering plants complete with clean rooms from state-of-the-art factory premises in Phoenix, Arizona. Diamond Coatings provide an extensive range of products, including ITO (Indium Tin Oxide) and AR (Anti-Reflection) coatings on glass or plastics; capacitive and resistive touch screens; monolithic shielding filters (RFI) on glass or plastics; mesh windows, glass supplies and more.
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