EPO-TEK® 383ND High Temperature Epoxy, Heat Cure (4g)

The EPO-TEK® 383ND Epoxy is a two-component, high-temperature, electrically and thermally insulating epoxy. It is designed as a longer pot life version of EPO-TEK 353ND. This 100% heat-cured epoxy is formulated for bonding glass, ceramic, and metals. Centrifuge Recommendation: 5-10 min @ 1,000 RPM. Available in a 4-gram packet.

Features of 383ND:

• Pot Life: 8 Hours
• Color changes from clear to dark amber when cured properly.
• Low viscosity allows for wicking and capillary dispensing.
• Capable of high performance in fiber optic applications; designed to meet Telcordia 1221
• Recommended Cure: 150°C / 1 Hour

Applications for 383ND:

• Provides strong transmission in the near IR (800–1,500 nm); ideal for sealing fiber to ferrules and transmitting light through optical pathways
• Commonly used in fiber optic component packaging, including optical alignment, environmental sealing of optoelectronic packages, and V-groove arrays
• Suitable for potting fiber optic bundles into ferrules for light guides and endoscopes
• Functions as a dielectric layer in capacitor fabrication and in laminating PZT piezoelectrics used in inkjet devices
• Used as a structural-grade epoxy in hard disk drives, including applications such as anti-disk and voice coil sealing

Physical Properties:

• Color (before cure):
  • Part A: Clear
  • Part B: Slightly yellow
• Consistency: Pourable liquid
• Viscosity (23°C): 3,500 - 6,000 cPs
• Glass Transition Temperature, Tg: ≥ 100°C
• Coefficient of Thermal Expansion (CTE):
  • Below Tg: 34 x 10^-6 in/in°C
  • Above Tg: 129 x 10^-6 in/in°C
• Shore D Hardness: 88
• Suggested Operating Temperature: < 350°C (Intermittent); < 662°F 
• Particle Size: ≤ 20 microns

Optical Properties:

• Spectral Transmission: > 90% @ 520-1660 nm
• Refractive Index (uncured): 1.5715 @ 589 nm

See Datasheet for additional properties and application notes