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Material file which matches the type of hardcoat used in Filmetrics Hardcoat Standard samples starting in July, 2008
For a typical sample of HC Standard - 2 the refractive index and extinction coefficient at 632.8 nm are 1.51935 and 0. Below are files of complete refractive index and extinction coefficients. If the file is not available for download, you can request our proprietary file by clicking "Request".
Refractive Index Reference - Filmetrics Composite
No guarantee of accuracy - use at your own risk.
Proprietary encrypted file for use with Filmetrics Systems: