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Last updated: March 2, 2021

What Does Gasket Mean?

A gasket is a useful mechanical component that provides a tight mechanical seal between two mated surfaces. A gasket helps to remove unwanted gaps or air fills between the mated surfaces and also prevents leakage from the joined sections that undergo compression at high temperatures. Gaskets are used in many mechanical machine parts and are produced by cutting from sheet materials.


Corrosionpedia Explains Gasket

Gaskets are used to provide a tight grip or a seal between two mated components in equipment or machines.

Corrosion is a common problem in dynamic and statically sealed connections in pipelines, pumps, containers and other mechanical equipment that are sealed with gaskets or other sealing materials. However, corrosion can be significantly reduced if suitable types of sealing materials and proper construction techniques are used. The first step is to ensure the area where the sealing is provided by a gasket is smooth and evenly distributed. The second step is to apply suitable auxiliary materials such as lubricants, release agents or adhesives on the smooth surface and on the gasket in an adequate amount such that gaps or air bubbles are filled completely.

There are three types of corrosion that can occur due to an insufficient application of gaskets or any other sealing materials on the equipment or machines. They are:

  • Contact corrosion
  • Crevice corrosion
  • Electrochemical corrosion

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