Optical characteristics of alumilite clear

We are trying to use www.alumilite.com/resins/alumilite-clear/ for creating an optical device. Therefore, we are looking for optical characteristics like refractive index and scattering properties. Can you kindly share or refer us to any useful resource for finding the same? It might be useful to know more details about the chemical composition to search for academic literature which might have characterized the material.

Thanks
Arpit