EP30-2: Optically Clear Epoxy Meets NASA Low Outgassing Specifications and Resists Temperatures from 4 K Up To 300 °F

Featuring a wide range of desirable properties, EP30-2 is a room temperature curing epoxy that meets NASA low outgassing specifications. This two part system was approved for demanding bonding applications by the Laser Interferometer Gravitational-Wave Observatory (LIGO). It was tested by LIGO for specific low outgassing rates, vacuum serviceability and is currently used in cutting edge optical assemblies involving prism attachments and optical filters, among others. This exceptionally versatile system can be used in a variety of applications in aerospace, electronic, optical and specialty OEM industries, especially when optical clarity, low outgassing and chemical resistance are important criteria. It is easily processed and has a non-critical ten to one mix ratio by weight. EP30-2 cures at room temperature or more rapidly at elevated temperatures. This epoxy flows smoothly and evenly after mixing, and is easily applied as an adhesive, coating or potting material.

Key Properties

Tensile strength: 10,000-11,000 psi

Service temperature range: 4 K to +300 °F [4K to +149 °C]

Passes ASTM E595 for NASA low outgassing

Refractive index: 1.55 at 75 °F

Volume resistivity: >10¹⁵ ohm-cm

Withstands 1,000 hours 85 °C/85% RH