Epotek 302-3M is a two-component optical epoxy for high-performance optical and fibre optic applications. It balances low stress with excellent moisture resistance.

Key Features of Epotek 302-3M Optical Epoxy

  • Low-stress room-temperature cure
  • High Shore D hardness
  • Perfect for fibre optic bonding

Bonds a Wide Range of Materials

This versatile material bonds glass, quartz, metals and most technical plastics. As a result, it forms a robust seal that holds up even in high humidity.

Gentle on Delicate Parts

The 302-3M formula minimises internal stress during curing. Therefore, it protects delicate optical fibres and sensors from signal loss or mechanical damage.

Easy to Process

It cures at room temperature and has a low viscosity. In addition, this makes bubble-free potting and thin-line bonding easy.

Why Choose This Optical Epoxy?

Once fully cured, 302-3M offers high Shore D hardness and excellent chemical resistance. For example, it suits telecommunications hardware, medical endoscopes and precision laser systems.

So you get long-term reliability, even in challenging environments.

Because it cures at room temperature, you also avoid the cost and time of oven curing. That makes it a practical choice for both prototypes and production runs.

Browse our full range of optical adhesives to compare options for your application.

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Epotek 302-3M Epoxy

High-performance two-component epoxy designed for optics and fiber optics. Features low stress, excellent moisture resistance, and room-temp curing for glass, quartz, and metal bonding.

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