NIDEK - Anti-Salt Water AR Coating

Salt water spray test : (Repeat 1 and 2 until the coated layer becomes corroded.) 1. Heat 5wt% NaCl solution up to 35°C and spray 2. Dry
The surface is corroded by salt water Conventional AR coating	Anti-salt water prevents corrosion Anti-salt water AR coating

Optical Properties

Physical Properties

Item	Test condition	Results
Abrasion	1.5kg Steel wool #0000, 5 strokes	< 10 scratches
Adhesiveness	Tape Test (3 times)	Passed
Contact angle	Water contact angle	108 degrees
Salt water resistance*	Salt water spray test per JIS Z2371, 28 days	Passed

*The test was conducted by the Nagoya Municipal Industrial Research Institute, using a salt water spray testing machine made by Suga Test Instruments Co, Ltd.
Test conditions: chamber temperature 35 ± 1 °C, approx. 100% humidity, 5% salt water density (50g / 1000ml), PH6.5-7.2

The optical and physical properties are not the guaranteed values but the results of the measurement.

All the NIDEK's coating for optical application are individually designed on a make-to-order basis.

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