Tritan Primer Coating
The main ingredients of Tritan Primer are water-based PU resin and water. The primer is used as an undercoat on Tritan lens before subsequent overlay hardcoat. It is an ideal preparatory coat to create inter-coat adhesion. It is to be working with GPL-20 hardcoat for unsaponified TRITAN lens.
1. Basic Specification
Property |
Unit |
|
Values |
Method |
|
Coating Sol
|
Physical Appearance |
- |
|
Milky clear |
- |
Bulk Density |
g/ml |
|
0.990-1.000 |
Gravitometer (20°C) |
|
Viscosity |
cp |
|
1—5 |
GB/T1723-93 (20°C) |
|
Solid Content |
% |
|
5—7 |
180℃, 30min |
|
PH Value |
- |
|
4—6 |
- |
|
Cured Film |
Adhesion |
- |
|
OK |
Crosshatch, 3M 810 tape |
2. Production Environment
Working Temp.: 18°C-22°C
RH: 40%-60%
Clean Room: class 1000-10000
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