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What Type of Gasket Material Should Be Used With Gasoline?

When operating with systems and components that house and transport fluids, it is important that reliable seals are implemented to ensure that any leak is prevented. Gaskets are a common option for such needs, coming in the form of rubber components that are seated and compressed between two or more surfaces to deform and create a seal. When transporting or storing a fluid such as gasoline, it is crucial that one takes into account the types of gasket material that is used for the seal, as some materials may begin to break down and fail when interacting with gasoline. As the failure of a gasket can lead to dangers when fuel begins to leak, it is very important that the right material is relied on.

Whether a system features gasoline, diesel, or other forms of petroleum-based fuels, the gasket material will need to be compatible with fuel injectors and other fuel system components. The most common choice of material is nitrile, or Buna-N, that of which is a closed-cell sponge rubber that is resistant to gasoline, fuel, and various oil types. Closed-cell sponge rubber is a type of expanded synthetic rubber created through a process of using elastomeric treated withholding gas and a chemical blowing agent. With the manufacturing process for such materials, a soft sponge can be created and sliced as needed to create a correctly sized product for a given application.

While nitrile is the material of choice, there are other options such as those made from vegetable fibers with cork gasket papers. By impregnating the plant fiber with protein and glycerin binders, a robust gasket can be created. These gasket materials are often used in chemical, automotive, and petroleum applications alike. Depending on the fluid that will be present within a system, the gasket material can be treated in various ways to increase specific resistances.

For industrial or automotive applications, nitrile is the material of choice for gasket seals, oil handling hoses, grommets, transmission fluid seals, shock mounts, and much more. When nitrile is used for a carburetor gasket or aircraft hose gasket, it will require a specific grade to ensure optimal operations. The grade of nitrile may be affected in various ways, such as increasing the acrylonitrile content within the polymer for the means of bolstering oil resistance. While nitrile features a good resistance to aromatic hydrocarbons, acids, and bases, it is not suitable for acids and bases that have strong oxidizing effects. Furthermore, nitrile gasket materials work best when they are in an environment where temperatures remain within the range of -40 to 275 degrees Fahrenheit.

If you find yourself in need of various gasket materials or fuel system components, look no further than Aerospace Domain. Owned and operated by ASAP Semiconductor, we are unmatched in our ability to fulfill all customer needs while presenting some of the most competitive pricing and lead times on the market. Explore our current set of offerings as you see fit, and note that every item listed is ready for purchase at any time. Using our online RFQ services, you can quickly and easily request a quote for your comparisons and receive a response in as little as 15 minutes.

With AS9120B, ISO 9001:2015, and FAA AC 00-56B accreditation, we go above and beyond to ensure that the needs of our customers are always met to the best of our capabilities. With a strict NO CHINA SOURCING pledge, we choose to only stock items from top global manufacturers that we trust, and all purchases ship out alongside their qualifying certifications and manufacturing trace documentation. Give us a call or email today and connect with a team member who would be more than happy to assist you however they can!


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