EPO-TEK® HYB-353ND-LV Low Viscosity Epoxy, Hybrid Heat & UV Cure - Pre-Mixed and Frozen (3cc Syringe)

The EPO-TEK^® HYB-353ND-LV Low Viscosity UV Hybrid Epoxy is a single-component, high-temperature epoxy for semiconductor and fiber optic applications. It offers cured performance similar to EPO-TEK 353ND, modified to allow for initial UV (ultraviolet) tacking, and features a lower viscosity than HYB-353ND. Recommended Cure: UV tack at 100 mW/cm² for 10 seconds @ 240–365 nm, followed by a 150°C (302°F), 30-minute thermal cure. Available in a 3 cc automatic syringe.

Features:

• Supports active alignment of lenses, diodes, and optical components
• UV tacking for precise positioning
• Very low viscosity
• Pot life: < 20 Hours

Applications:

• Fiber Optics: Fiber bonding and component alignment
• Optoelectronics: Optical components sub-assemblies; lens, diode, and component bonding
• Piezoelectric bonding
• LiDAR and IR Sensors

Physical Properties:

• Consistency: Pourable liquid
• Viscosity (23°C) @ 100 rpm: 800-2,000 cPs
• Glass Transition Temperature, Tg: ≥ 80°C (degree Celsius); ≥ 176°F (degree Fahrenheit)
• Shore D Hardness: 83
• Coefficient of Thermal Expansion (CTE):
  • Below Tg: 46 x 10^-6 in/in°C
  • Above Tg: 137 x 10^-6 in/in°C
• Suggested Operating Temperature: < 350°C (Intermittent); < 662°F

Optical Properties @ 23°C (73.4°F):

• Spectral Transmission:
  • ≥ 50% @ 550 nm
  • ≥ 95% @ 1,100-1,600 nm
  • ≥ 98% @ 800-1,000 nm
• Refractive Index: 1.5215 @ 589 nm (uncured)

See Datasheet for additional properties and application notes