Many optical and display applications require surface modifications to optimize performance. Achieving the desired modification and functionality while maintaining the highest optical standard is a technical challenge that ISTN addresses using two product categories: optical films and optical coatings. For a given function (i.e., anti-fog), we recommend selecting between the two categories based on the following criteria:

Film	Coating Solution
Function sought semi-permanent (potentially requires removability) Optical product already installed and unable to be processed through a coating line (i.e. building window) The surface that requires coating is flat or curves along only one directional axis (i.e. mirror)	Function sought is permanent Optical product not yet installed and/or able to be processed through a coating line The surface that requires coating curves along two directional axes (i.e. spherical lens)

FOGuard^® (AF-6427A) Anti-Fog Film

Many optical products require anti-fog performance while not allowing for trade-offs in visibility, such as LCD displays, military goggles, and bathroom mirrors. For such applications, FOGuard^® film is the ideal film choice given its near-perfect optical clarity, a hydrophilic substrate that counteracts moisture upon contact and adhesive application. FOGuard^® film is currently available from ISTN in roll and sheet formats. We also strive to meet custom size and shape requirements by offering cutting and on-site installation support.

Contact us at sales@istninc.com to place an order for film or request additional information.

ISTN has developed several proprietary coating technologies that include anti-fog, anti-stain, and anti-reflection formulations. These liquid solutions are currently available to our customers for use in modifying their optical products. The solutions are typically applied to the substrate on a processing line via dip, spin or roll coating, and then thermally cured or UV cured. For customers that do not own a processing line, we are able to assist in the design of a custom line and facilitate the set-up of that design. We also coat certain standard sizes of products on our own lines.

FOGuard^® Anti-Fog

ISTN's proprietary Anti-Fog coating technology modifies the substrate surface to become highly hydrophilic by reducing the water-substrate contact angle close to zero, thereby providing long-lasting, durable water sheeting capability under adverse conditions. Our AF technology can provide permanent AF properties to a number of optical substrates, and benefits a wide variety of application areas including sports goggles, safety glasses, and household/bathroom glass.

Anti-Stain

Anti-Stain coatings reduce the wettability of coated substrates against water, oil, and solvents. ISTN's UV curable Anti-Stain Hard Coat is formulated without the use of fluorinated particles and is compatible with both plastic and glass substrates. Thermally cured Anti-Stain coating formulation is also available for glass substrates and is compatible with select Anti-Reflection coatings. ISTN's Anti-Stain coating formulations are designed to be applied using simple wet coating application methods for increased production yield of the coated products.

SilicAR™ Anti-Reflection

ISTN’s Anti-Reflection technology combines the high transmission properties of a vacuum coating with the ease of processing associated with liquid coatings (dip, spin, roll). This allows ISTN’s liquid AR coating to be applied to many different substrates with various sizes and shapes. Some of the key applications that benefit from increased transmission include flat panel displays, solar panels, and eyeglasses.

Contact us at sales@istninc.com to place an order for a coating solutions or request additional information on our processing capabilities. For assistance in design or set-up of your own coating line, contact us at labdesign@istninc.com.