Optical Coatings — LensGuard Series
LensGuard® 502 — Eyewear Hardcoat
Abrasion resistant, non-tintable eyewear hardcoat qualified for both polycarbonate and PMMA substrates. LensGuard® 502 delivers reliable scratch and abrasion protection for optical applications.
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Innovative Coatings
Technical Data (PC & PMMA)
| Test | Result |
|---|---|
| Bayer Ratio (a) | 1.50 |
| Steel Wool Scratch Resistance (b) | 24 psi |
| Taber Abrasion ASTM D-1044 (c) PC 100 cycles |
2.70 |
| Taber Abrasion ASTM D-1044 (c) PC 500 cycles |
4.25 |
| Taber Abrasion ASTM D-1044 (c) PMMA 100 cycles |
2.50 |
| Taber Abrasion ASTM D-1044 (c) PMMA 500 cycles |
3.50 |
| Pencil Hardness ASTM D-3363 (d) PC |
2H |
| Pencil Hardness ASTM D-3363 (d) PMMA |
8H |
(a) 500g of abrasive media, 600 cycles
(b) Steel wool #0000, 5 rotations, no scratch
(c) 500g, CS-10 wheels
(d) Mitsu-Bishi Hi Uni pencils, Wolf-Wilburn Method — 1000g @ 45°