AMMONIUM SALTS Resistant O-Rings and Seals
Ammonium salts are a group of compounds that contain positively charged ions of ammonia, which are commonly used in fertilizers, pharmaceuticals, and cleaning products. In industry, ammonium salts are often used as a preservative, stabilizer, and buffer.
When rubber is exposed to ammonium salts, it can cause a variety of issues, such as swelling, cracking, discoloration, and brittleness. The rubber may also become less elastic and more brittle, resulting in decreased flexibility and durability. Additionally, the rubber may corrode over time and become weakened, leading to further degradation of the material.
Buna-N (NBR, Nitrile, Buna)
Buna-N o-rings also referred to as NBR o-rings and Nitrile o-rings are the most widely used o-ring material in the word because of low cost, good mechanical performance with resistance to water, most basic oils, lubricants and some fuels, many pneumatic, hydraulic systems, and the default choice for basic applications. Buna-N o-rings are not recommended for exposure to sunlight, UV light, ozone and general outdoor weathering or hash chemicals, acids, keytones and many others.
B1000 Buna-N
- General purpose material
B1001 Buna-N
- For higher pressure applications
B1002 Buna-N
- Compliant to FDA specification 21 CFR 177.2600 for use in food and beverage contact applications
Rubber Material Compatibility with AMMONIUM SALTS
View some of our other material compatibility ratings with AMMONIUM SALTS. If you don't see what you're looking for or need more guidance, our team of experienced sealing design engineers can help select the best sealing products and material for your specific application.
View Full Chemical Compatibility Guide
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