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Getting the Best Performance from Metal Gaskets


Making gaskets from metals requires a certain amount of experience. Understanding how the metal will respond not only during manufacturing but once it is in the field can make or break a product. Here are just a few considerations when you are thinking about using metal for your next gasket project:

  • Metals can show deformation. Did you know that metals, depending on their type, can offer both elastic and plastic deformation when they are placed under stress? Elastic deformation means that a metal gasket will return to the shape it was originally, or at least close, when it is de-stressed or released from the pressure. While the deformation is not the same level of rubber products, knowing metals will return to shape is critical when creating your next gasket design.
  • Permanent deformation is possible. While some metals do have elastic properties, it is also possible that metallic-based gaskets will suffer from permanent deformation once under pressure. This should help you to carefully consider the properties of the metals that you are considering for your gasket. If permanent deformation isn’t advisable, then choosing another material could be a critical part of your project.
  • Metal-based gaskets are ideal for the highest temperatures and the most extreme pressure situations. If your application means that gaskets will be exposed to heat and pressure over the long term, then looking for a rubber product that will work simply isn’t reasonable. Metal is the best option for high levels of pressure where elastomers won’t perform.
  • Think about the entire design. When you are engineering your metal gasket take into consideration the other materials it will touch. Roughness, scratches, pits and other anomalies can prevent proper sealing.

Call Gasko today to speak with one of our engineering staff on your metal gasket specifications and our rapid prototyping service. Call now!