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IRS 2012 is a very low density, light weight epoxy resin system with excellent physical properties. It can be used in systems where weight is critical (e.g. auto sport, motor racing, aerospace). IRS 2012 also has good transparency to RF signals or radio signals.

Features & Benefits

  • Low density
  • Light weight
  • Black potting & encapsulation system
  • Contains advanced light weight fillers
  • Excellent electrical properties
  • Good chemical resistance to solvents, oils, fuels, acids and bases
  • Good mechanical properties
  • Low cure shrinkage
  • Has uses in radio frequency applications, RF transparent
  • Available in easy-to-use twinpacks


Typical properties
Mix ratio 100:45 resin to hardener by volume
70:30 resin to hardener by weight
Mixed viscosity 11 000 cps
Pot life (100g mix) 1 hour @ 23°C
Cure schedule Bondline temperature:
24 hours
4 hours
Density 0.6 g/cm³
Hardness, Shore D 40
Tensile strength 4 MPa
Crush resistance 50 MPa
Operating temperature -55°C to 150°C
200°C short term
Chemical resistance Excellent – fuels, lubricating oils, acids and bases
Good – hydraulic fluids, solvents
Dielectric strength 15kV/mm
Volume resistivity 1011 ohm-cm
Colour Black
Shelf life 12 months

Ordering Information

IRS 2012 is available in twinpacks or in bulk.

IRS 2012 Twinpack

The twinpack sachet is a clear film sachet, with the resin and hardener separated by a removable clip and rail divider. Click here for twinpack mixing instructions.

Part number Description
IRS2012-167G Low Density Epoxy Potting Compound, 100 gram twinpack (approx 167 ml)
IRS2012-300G Low Density Epoxy Potting Compound, 300 gram twinpack (approx 500 ml)

All Downloads

Filename Size Download
Correcting Resin Separation in IRS2012 Low Density Potting Compound 0.19MB
  • Last updated: September 2018
  • Version: 5.4

Statements, technical information and recommendations contained herein are based on tests we believe to be reliable but they are not to be construed in any manner as warrantees expressed or implied. The user shall determine the suitability of the product for his intended use and the user assumes all risk and liability whatsoever in connection therewith.