STC5680 Hardcoating Sol is clear sol-gel nanoparticle solution that will cure when exposed to thermal processing system. With our proprietary leading edge technology, this primerless hardcoating sol is engineered specially for Tritan lens. The cured coating film delivers good abrasion resistance while retaining low light interference (low rainbowing).
1. Basic Specification
Property |
Unit |
Values |
Method |
|
Coating Sol
|
Bulk Density |
g/ml |
0.930-0.940 |
Gravitometer |
Viscosity |
cp |
8—12 |
GB/T1723-93 |
|
Solid Content |
% |
27—29 |
180℃,30min |
|
PH Value |
- |
4—6 |
- |
|
Cured Film
|
Light Transmission |
% |
90 |
- |
Pencil Hardness |
H |
- |
Chung Hwa Drawing Pencil |
|
Adhesion |
- |
OK |
Crosshatch, 3M 810 tape |
|
Scratch Resistance |
- |
OK |
0000#steel wool, 200g load, 20 cycles |
|
|
Water Immersion |
|
OK |
80℃,30min |
2. Production Environment
Working Temp.: 18°C-22°C (Dipping bath temp. is required to be 3 Celsius lower than room temp.)
RH: 40%-60%
Clean Room: class 1000-10000
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