| Lightweight . ImpactX NXT is about 16% lighter than CR-39 and 10% than polycarbonate.
Impact resistance . ImpactX NXT impact resistance is higher than polycarbonate and passes all impact resistance standards.
No stress Cracking or Crazing . Unlike polycarbonate and other materials ImpactX NXT is not sensitive to stress cracking, so it does not craze or break when subjected to mechanical strains.
Excellent workability . Unlike CR-39, polycarbonate and polyamide, ImpactX NXT can be easily drilled without brittleness or stress cracking problems.
Processed by casting . Lenses in ImpactX NXT are made by casting, which ensures low internal stress, high optical homogeneity, thermal and mechanical stability. Such properties make ImpactX NXT the material ideally suited for high quality unbreakable polarized lenses.
Excellent optical properties. ImpactX NXT has lower refraction index, internal stress, and chromatic dispersion (Abbe number) than polycarbonate, resulting in lower surface reflection and "rainbow effect", higher definition and sharper images.
High Chemical Resistance. Unlike polycarbonate and polyamide, ImpactX NXT is not attacked by common chemicals or solvents (i.e. acetone and methyl alcohol)
High thermal stability. ImpactX NXT polymer has high thermal stability and is not subject to optical or mechanical distorsions, even when exposed to temperatures in excess of 80degrees.
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