Low refractive index coatings

Kriya’s Low Refractive Index (LRI) coating is a solvent based, UV curable coating with a refractive index (RI) as low as 1.35 for plastic substrates or optionally available as an inorganic thermal curable coating for glass. It can be used in optical stacks to match the RI requirements in that specific construction. It is frequently used to reduce the reflection of a plastic substrate up to a certain extent. Combination with a hard coat or Antistatic hard coat as a base layer is possible and result in additional mechanical and/or antistatic properties. The LRI coating can be applied by standard wet coating techniques such as gravure and slot die.

OrganicMin 1.35Min 1.35Min 1.35Min 1.35
InorganicMin 1.35

0 = Standard  |  X = Optional additional feature

TypeScratch resistanceOvercoatableChemical resistanceAntistatic
Organicseparate layerXXseparate layer
Inorganicseparate layerXXseparate layer

0 = Standard  |  X = Optional additional feature

Kriya Materials always develops custom formulations meeting the most stringent requirements of our customers. The result is a plug and play product designed for optimal performance at the lowest total system cost.

Since we work custom based, we love to hear more about your substrate of interest and envisioned functionalities.

Please contact us through submitting our intake form.

Coatings for other substrates can be requested @ Kriya Materials

Disclaimer; Performance may depend on specific subtrate of choice, and process conditions, for each customer a customer specific product is formulated.