Knowde Enhanced TDS
Identification & Functionality
- Product Type
- Technologies
- Product Families
Features & Benefits
Applications & Uses
- Markets
- Applications
- Application Method
- Cure Method
- Plastics & Elastomers End Uses
- Applications
- LED COB UV reflection coat
- Medical equipment, home appliance with UV sterilization unit
- Air cleaner with UV sterilization unit
Properties
- Color
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Adhesives | Al / Cu | — | — |
| Breakdown Voltage (Thickness 25μm on Al) | 1.8 | KV | 10sec / Electrode distance 20mm |
| Coating Method | Screen printing | — | — |
| Insulation Resistance (Thickness 25μm on Al) | 3.9×10^9 | Ω | 500V / 10sec / Electrode distance 20mm |
| Reflection (at 365nm, Thickness 30μm or more) | min. 87 | % | Reflectance is relative comparison with Spectralon® (Porous PTFE) |
| Viscosity (at 10 rpm) | 40~80 | Pa.s | Viscosity can be adjusted by the customer coating conditions. |
Technical Details & Test Data
- Technical Information
- UV sterilization is expected as the valuable technology to disinfect bacterial, virus thereat around us.
- High efficient reflection coating for UV wavelength 250～400nm.
- Thermal curing ink (main + agent) for screen printing, also we can provide printing service too.
- Reflection UV478: min. 85% @365nm
- Endurance:
Thermal R change within <5% at 200℃/2000hours
High temp & humidity R change within <5% at 60℃-90%/2000hours
UV resistance R change within <5% at 26mW/cm2, 270nm/2000hours
Reflectance
Thickness Dependence
Substrate Dependence
- High Temperature Resistance
Holding Temperature : 200°C
- Weatherability
Holding Condition : 60°C 90%RH
- UV-C resistance
Irradiation Condition: 26mW/cm2@270nm
- Adhesive
UV478
before/afterAl 0/0 Cu 0/0 SUS 
- Recommended Blending Conditions
Blending Condition
Blend Ratio
- Main Body : UV478 = 100 wt%
- Curing Agent OG831 for UV478 = 2.0 wt%
- Pick Main Body up from the refrigerator
- And Keep it in the room and store until main body up to room temperature (>6 Hours) as unopened (Avoid Dew condensation)
- Curing Agent solution should NOT be in the refrigerator.
Thinner
- In case it need to adjust viscosity
Storage Condition
- Main Body : UV478 = 5°C Refrigerated storage below 5°C
Shelf life : 3 Months after manufacturing - Curing Agent : OG830, OG831, OG840 = Room Temperature
Shelf life : 6 Months after manufacturing
- Recommended Curing Conditions
Drying Condition
- 90°C for 10 min in the Box Oven or Equivalent Heat amount of Belt dryer
- Good air Ventilation is needed
Curing Condition
- UV478 : 180°C for 120 min(minimum) in the Box Oven or Equivalent Heat amount of Belt dryer UV479
- 180°C for 120~180 min(minimum) in the Box Oven or Equivalent Heat amount of Belt dryer
- Feel dry surface by the finger touch is good enough in the above condition