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 Model Number |
Medium Index / ST11MS |
Introduction
ST11MS is a heat curable coating material to be used for casted plastic lenses. It is composed of silicone monomers, titanium dioxide and solvents and is semitransparent yellow color liquid.
Application
Coating on casted plastic lenses ;
NK-55 lenses or other lenses with medium refractive index
Performance Highlights
- No interference / Execellent edge gloss
- Excellent scratch / abrasion resistance
- Excellent retention of transparency
- Excellent weather resistance
Processing Introductions
- Coating : Dip Coating
- Curing : 70~80°C, 10min(First) / 110~120°C, 2hr(Second)
Storage and Handling
- Shelf life : 3 months at -10°C, 2 months at 7°C
- Coating should be done at RH < 50%
Packing
3kg plastic container
Properties
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Item
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ASTM
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Unit
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Properties
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Notes
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Coating
Solution
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Density
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D 1475
|
g/mL
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1.030~1.040
|
11℃
|
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Viscosity
|
D 2196
|
cP
|
4.0~5.0
|
11℃
|
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Solid Content
|
|
%
|
25.0~30.0
|
130℃, 30min
|
|
pH
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E 70
|
|
3.3~4.3
|
25℃
|
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Coated
Film
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Thickness
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D 4138
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㎛
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2.0~3.0
|
Prism Coupler
|
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Refractive Index
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F 576
|
-
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1.610
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Prism Coupler
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Adhesion
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D 3359
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-
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5B
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Tape test
3 Times
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Scratch Resistance
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Steel Wool
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-
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Pass
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#0000, Load 1.0kg
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Hot Water Resistance
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D 870
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-
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Pass
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100℃, 10min
|
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Transmittance
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D 1003
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%
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>85
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UV/Vis Spectrometer
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Chemical Resistance
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D 2792
|
-
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Pass
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MeOH, IPA
n-BuOH 25℃, 4 Hours
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