barrier-free version
Key technologies for CD-RW
• Excellent durability
• Excellent adhesion to Al
• Higher pencil hardness (if hard coat layer is required)
• Cost performance
SD-374 is designed for CD-RW to achieve those key technologies.
Some customers require 'hard coating' on Polycarbonate. SD-715 is our UV curable laquer for hard coating on CD-RW and DVD+/-RW.
Technical Information
| SD-374 | SD-715 | |||
| Before curing: | ||||
|
Color Viscosity Refractive Index Surface tension |
Pale yellow 35 mPA.s 1.511 35 mN/m |
Pale yellow 43 mPa.s 1.480 29 mN/m |
||
| After curing: | ||||
|
Pencil hardness Tg Modulus 30°C 50°C 75°C 100°C Shrinkage on curing |
F - H 69°C 1400 MPa 580 MPa 200 MPa 100 MPa 8.5% |
2H - 3H - 1700 MPa 1400 MPa 1300 MPa 1200 MPa 11.9% |