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  • Nitrile Gaskets
Nitrile Gaskets

Nitrile Gaskets

Nitrile Gaskets

Nitrile Gaskets – Nitrile rubber encompasses unusual physical and chemical properties that make it one of the most popular synthetic elastomers worldwide. The intended use for nitrile rubber is with pads, seals, and general gasket applications. Nitrile is also referred to as Buna-N rubber or butadiene rubber. This rubber has an outstanding level of resistance in exposure to synthetic and natural grease products. Industry experts recommend nitrile rubber for applications where oil/petroleum products are present. Nitrile rubber originated during World War II due to the rapidly growing demand for oil-resistant rubbers that had the capability to serve as an exceptional alternative to natural rubber. As a result, we are given nitrile rubber.


Society quickly industrialized during most of the early 1900's, prior to the start of World War I. During this period of time, society was introduced to the automobile industry, which created an increased use of oils in industrial machinery, automotive, and military applications. Prior to the development of nitrile sheet rubber, manufacturers had to suffice with natural rubber which had an inconsistent supply and performance. As industrialization of the western hemisphere amplified, the effort to develop an optimal oil-resistant rubber became critical.


World War I Changed Everything

The introduction and improvements of jeeps, tanks, and planes exposed how mechanized warfare had become. Britain was the leader in the world's natural rubber supply. In an effort to disable its main enemy, Britain cut Germany off its supply. The insufficient rubber supply restricted Germany's ability to operate and maintain its war machinery as well as they would've liked. Although natural rubber does not resist oils and greases as well as nitrile rubber, it was the only appropriate material available to use during this time.


Post World War I, Germany understood it was an absolute necessity to create its own rubber supply. They remained cut off from the world's supply ever after the war had concluded. During the time period between World War's I & II, German chemists pushed to create an elastomer that could be utilized in automotive applications without incurring degradation from oils and greases. The Germans desired to develop something that would outperform natural rubber which decomposed synthetic elastomers. After countless prototypes and formulations, Germany chemists developed an oil-resistant rubber called Nitrile Butadiene Rubber, or Buna-N Rubber. This new rubber was instantly successful and continues to satisfy the needs we face today.


Nitrile Rubber is highly demanded by OEM's because it has outstanding oil-resisting capabilities. It is common to find nitrile rubber in automotive applications such as garage workshops, because of its ability to resist oils that are synthetic and organic in nature. This material is effective in this industry because drops of motor oil can remain on a nitrile rubber surface for long durations of time without degrading the material. If an object is made with this elastomer, it will have better chances of staying in-tact, in contrast to the alternative.


Nitrile rubber can protect against more than just oils. A nitrile sheet also exhibits powerful levels of protection against other chemicals. You can rely on nitrile in applications with ammonia, methyl alcohol, copper salts, detergents, mercury, potassium salts, and zinc sulfate because of the outstanding capability it has with these chemicals. These caustic agents can cause serious problems for non-nitrile objects. They do minimal harm when paired next to Buna-N rubber; however it should be noted that Buna-N rubber is created in a variety of products and the concentration of the chemical needs to be considered when matching with the appropriate nitrile rubber sheet.


This exceptional oil-resistant material is available at American Seal and Packing in two different colors: Black or White. There is no difference in the general chemical properties between these two options. However, the white nitrile sheet tends to be more popular for aesthetic reasons. The primary benefit of a white-hued elastomer is that it's a non-marking rubber. This means that no mark or stains are left on whatever it is placed on. Although black nitrile can be used for any purpose, some individuals favor white nitrile where visual aesthetics are needed for application.


Present day applications you can find nitrile rubber being used in are typically within industrial applications, such as oil and gas production, food processing, and automotive fields. It is critical that the seals and gaskets used in these applications have the capability to endure the corrosive effects of various oils, greases, and chemicals. Over time, trial-and-error has shown that this synthetic elastomer is irreplaceable based on its abilities. If it's a necessity you have an oil-resistant rubber with the capability to withstand contact with petroleum and chemicals exceptionally well, then contact the staff at American Seal and Packing today to order the right Nitrile Rubber for your application.


Nitrile (Nitrile-N)

Trade Names:

Chemigum Hycar (Zeon [Goodyear] Chemical) Ny Syn (Copolymer) Paracril (Uniroyal) Krynac (Polysar) PerNitrilen (Mobay)


This is the most used O-Ring elastomer across several applications. Supreme resistance to petroleum products. Outstanding compression set, tear, and abrasion resistance. Does not perform well in exposure to ozone, sunlight, or weather unless specifically compounded. Do not store in direct sunlight or near motors or other electrical equipment which may generate ozone. Temperature Range: -40°F to 250°F.


Style 0726T - Nitrile-N 70

Durometer for Transformer Gaskets and Strip Especially selected for the fabrication of gaskets and strip for transformers. High resistance to transformer oils. Durometer 70±5.

Other Properties:

    Tensile strength 1500 PSI
    Elongation 250%
    Temperature range: -30°F to 250°F

ORDER Item# Dimensions Thickness x width Price Per Yard Length Durometer
1 0726T062x36 70 Duro 1/16" x36" $ 75.08 Per Yard 70
1 0726T125x36 70 Duro 1/8" x 36" $ 149.99 Per Yard 70

STYLE 0726H - Nitrile-N 90

Durometer Good resistance to many oils and chemicals.

Other Properties:
    Durometer 90±5:
    Tensile strength 1500 PSI.
    Elongation 100%.
    Temperature range -30°F to 250°F

STYLE 0726W - Nitrile-N

White 50-65 Durometer. Specially manufactured from FDA approved ingredients. Great resistance to oily and greasy food products. Great resistance to abrasion. Non-toxic and non-marking.

Other Properties:

    Durometer 55+10/-S.
    Tensile strength 1000 PSI
    Elongation 400%
    Temperature range -20° F to 200° F

 

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