DUROPTIX OE-6370
Harmonization Code : 3907.30.00.40 | Epoxy Mold Compounds containing by weight more than 70 % silicon dioxide
Main features
- 1:1 Optical Encapsulant Mixing
- 100% Transparent Optical Protection
- 240-Minute 150 deg C Cure
Product Description
DuPont Duroptix™ OE-6370 HF Optical Encapsulant is a colorless, two-part 1:1 mix silicone elastomer designed for LED encapsulation and overmolding applications. Based on a polydimethylsiloxane chemistry, this optical encapsulant combines high transparency, thermal stability, moisture resistance, and adhesion to commonly used LED substrates. The material provides excellent optical clarity with 100% transparency at 450 nm through a 1 mm sample thickness and is formulated to withstand the thermal demands associated with modern LED manufacturing processes. Its fast-curing characteristics and compatibility with standard dispensing and molding equipment support efficient production workflows for LED packaging and protection.
Key features
- High optical transparency: Delivers 100% transparency at 450 nm (1 mm thickness) for light-transmission-critical LED applications.
- Fast heat cure: Achieves cure in approximately 240 minutes at 150°C, supporting efficient LED encapsulation processes.
- Thermally stable silicone elastomer: Provides durability across demanding operating environments and LED package thermal cycles.
Applications / Suitable for
- LED encapsulation
- LED package protection
- Optical encapsulant applications
- Overmolding processes
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Additional Information
As-supplied / before-processing properties
Representative as-supplied properties for the two-part optical encapsulant system.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Mix Ratio | 1:1 | - | Two-part system |
| Color | Clear | - | As supplied |
| Viscosity (Part A) | 6100 | cP | Part A |
| Viscosity (Part B) | 5300 | cP | Part B |
| Mixed Viscosity | 5600 | cP | Mixed material |
| Shelf Life | 12 | months | Stored at 35°C |
After-processing / final-state properties
Representative cured optical and physical properties.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Heat Cure Time | 240 | minutes | 150°C |
| Hardness | 70 | Shore A | JIS |
| Transparency at 450 nm | 100 | % | 1 mm thickness |
| Refractive Index | 1.41 | - | Typical value |
| Operational Temperature Range | -45 to 200 | °C | General silicone operating range |
