Automotive Insulation

High-temperature vacuum insulation for automotive exhaust system hot ends

Automotive exhaust systems present some of the most extraordinary and space-constrained challenges for thermal insulation and thermal management. Conventional insulation materials just aren’t sufficient for today’s high-temperature, compact vehicle exhaust systems. In addition, regulators and consumers alike are putting pressure on car manufacturers to improve exhaust systems and reduce harmful emissions.

Advanced vacuum insulation can be applied to exhaust system components including exhaust pipes, catalytic converters, manifolds, turbochargers, finishers, and motorcycle exhausts. Insulon® can help automotive exhaust systems:

  • meet packaging requirements
  • increase internal temperatures
  • reduce external temperatures
  • improve efficiency
  • decrease warm-up times
  • reduce cold-start emissions
  • protect sensitive components
  • improve aesthetics

In this video, Tracy Lewis Performance calls Insulon® vacuum insulation a “revolutionary new process for creating insulating properties in any pipe or tubing.” He’s demonstrating the thermal performance of an Insulon® tube that can provide high-performance insulation for automotive exhaust systems.

Cold Start Emission Reduction

One area of focus is on reducing emissions from the cold start period. The term “cold start” refers to starting a vehicle when the catalytic converter is at ambient temperature. During this period, the catalytic converter has not yet reached “light-off” temperature, which means significant levels of harmful emissions (hydrocarbons, carbon monoxide, and nitrogen oxides) are being released into the environment.

High-performance vacuum insulation offers a low-footprint, rugged, and passive insulation solution for automotive exhaust systems. By retaining heat in the exhaust hot end, vacuum insulation can help reduce the time to light-off temperature. One study from the National Renewable Energy Laboratory (NREL) found that vacuum insulation could reduce cold-start carbon monoxide emissions from a standard three-way converter up to 91%.

Download our technical datasheet to learn more about how vacuum insulation can help improve vehicle exhaust systems and reduce harmful emissions: