Catalytic Converter Seals | KnitMesh
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Catalytic Converter Seals

Catalytic Converter Seals

KnitMesh Technologies’ Catalytic Converter Seals are innovative components designed to enhance the performance and longevity of catalytic converters. These seals are specifically engineered to prevent vibrations and ensure a secure fit within the exhaust system.

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Discover KnitMesh Technologies’ Catalytic Converter Seals

KnitMesh Technologies’ Catalytic Converter Seals are an essential component for protecting the delicate honeycomb ceramic brick within a catalytic converter. These seals are designed to withstand shock and vibration, preventing damage to the brick and ensuring optimal performance of the catalytic converter.

In addition to protecting against shock and vibration, KnitMesh Technologies’ Catalytic Converter Seals also play a crucial role in preventing gas erosion and exhaust gas bypass between the brick and the inner catalytic convertor shell. This helps to maintain the efficiency of the catalytic converter and ensures that harmful emissions are properly controlled.

The Catalytic Converter Seals are manufactured using knitted wire mesh, which is compressed in a die to form a one-piece seal ring. This design ensures a secure and reliable seal, even in demanding conditions.

Furthermore, KnitMesh Technologies offers the option of creating an assembly with two seals that fit around either end of the monolith brick and are joined by a connecting mesh. This innovative design is particularly useful in cases where the converter design lacks other means of keeping seals in position. By ensuring proper positioning and sealing, these seals contribute to the overall effectiveness of the catalytic converter.

One advantageous feature of these Catalytic Converter Seals is their ability to accommodate the differential thermal expansion between the filter and the housing. The design of the seals allows for constant sealing, even as these components expand at different rates. This ensures that the seal remains effective and reliable over a wide range of operating conditions.

Understanding Catalytic Converters


Catalytic converters are important components in vehicles that help reduce harmful emissions. They contain a catalyst, usually made of precious metals, which facilitates chemical reactions to convert pollutants into less harmful substances.

However, catalytic converters can be susceptible to damage from shock and vibration. When subjected to these forces, the brick inside the converter can become loose or damaged, leading to reduced performance and potential failure. To address this issue, Catalytic Converter Seals are used. 

How Knitted Wire Mesh Absorbs Energy

Knitted wire mesh is a highly versatile material used in a variety of industries because of its ability to absorb energy. The unique nature of the material allows it to absorb energy in the form of heat, vibration, and sound, making it a popular choice for many different applications.

One way that knitted wire mesh absorbs energy is through heat transfer. Because the material is made up of interlocking loops of wire, it has a large surface area that can absorb heat from its surroundings. This makes it an ideal material for use in applications that generate a lot of heat, such as high-performance engines or electronic devices. By absorbing excess heat, knitted wire mesh helps to protect these components and prevent damage.

Another way that knitted wire mesh absorbs energy is through vibration. When an object vibrates, it gives off energy in the form of sound waves. Knitted wire mesh is a highly effective material for absorbing these sound waves, as the loops of wire help to dissipate the energy and reduce the amplitude of the vibrations. This makes it an ideal material for use in applications that require noise reduction, such as in automotive exhaust systems or industrial machinery.

Lastly, knitted wire mesh can also absorb energy in the form of sound waves themselves. When sound waves pass through the material, they encounter resistance from the interlocking loops of wire, which helps to dissipate the energy and reduce the volume of the sound. This makes knitted wire mesh a popular material for use in acoustic panels and other sound insulation applications.

Features and Benefits

  • Enhanced vibration absorption: Minimises the impact of engine vibrations on the catalytic converter.
  • Noise reduction: Helps reduce noise and rattling associated with the catalytic converter.
  • Reduced emissions: Helps minimise the leakage of exhaust gases, leading to reduced emissions.
  • High temperature resistance: Suitable for use in temperatures exceeding 1000°C.
  • Versatile sizing: Can be custom-produced to suit any size or shape of monolith brick, ensuring a perfect fit.
  • Round and oval cross sections: Provides flexibility to accommodate different exhaust system designs.
  • Additional protection for monolith brick edges: Lips can be added to the seals to provide extra protection.
  • Enhanced performance materials: Silica yarns in combination with metal filaments enhances the performance.
  • Added protection against exhaust gas bypass: Provides an additional layer of protection against exhaust gas bypass.
  • Cost-effective: Offers a cost-effective solution for improving the efficiency and lifespan of catalytic converters.
  • Custom-made: Can be manufactured to meet specific requirements.
  • Quality assurance: ISO 9001 accreditation ensures consistent quality and performance standards.

Suitable Materials for Catalytic Converter Seals