STC-5660 PCTG
Lens Hardcoating Sol is heat-curable nanoparticle resin solution in alcohol
solvent. It is formulated specially for unprimed PCTG lens. The cured coating
exhibits excellent abrasion resistance while retaining its flexural strength.
1. Basic Specification
Property |
Unit |
Values |
Method |
|
Coating Sol |
Bulk Density |
g/ml |
0.950-0.970 |
Gravitometer |
Viscosity |
cp |
8—12 |
GB/T1723-93 |
|
Solid Content |
% |
28—30 |
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
|
|
Hot Water Resistance |
|
OK |
80℃, 30min |
2. Production Environment
Working Temp.: 18°C-22°C
RH: 40%-60%
Clean Room: class 1000-10000
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