ISOBUTYRIC ACID Resistant O-Rings and Seals

Isobutyric acid, also known as 2-methylpropanoic acid, is a colorless liquid with a pungent odor. It is used as a food preservative and as a solvent in the production of plastics and pharmaceuticals.

Common types of failures when rubber is exposed to isobutyric acid include swelling, cracking, hardening, and embrittlement. Additionally, isobutyric acid can cause discoloration of rubber, affect its physical properties such as tensile strength, elongation, and tear strength, and cause an unpleasant odor.


HNBR (HSN, Hydrogenated Nitrile)

HNBR, or hydrogenated NBR, is created by modifying the properties of NBR to increase the materials resistance to ozone, many chemicals, heat, aging, and abrasion. Like NBR, HNBR still holds onto its resistance to oils and fuels.

Common Names: HNBR, Hydrogenated Acrylonitrile Butadiene Rubber


Here are just a few of the products we have available. Buy online or submit a quote for a fast response.
Recommended Material:
R1000 HNBR
Low Temp
-40 °F (-40 °C)
High Temp
325°F (165 °C)
Base Material
HNBR (HSN, Hydrogenated Nitrile)
Hardness
70
Color
Green
Attributes
  • General purpose material
Datasheet
Recommended Material:
R1001 HNBR
Low Temp
-30 °F (-35 °C)
High Temp
325°F (165 °C)
Base Material
HNBR (HSN, Hydrogenated Nitrile)
Hardness
70
Color
Black
Attributes
  • General purpose material
Datasheet
Recommended Material:
R1003 HNBR
Low Temp
-40 °F (-40 °C)
High Temp
325°F (165 °C)
Base Material
HNBR (HSN, Hydrogenated Nitrile)
Hardness
90
Color
Black
Attributes
  • For higher pressure applications
  • Peroxide cured
Datasheet

Rubber Material Compatibility with ISOBUTYRIC ACID

View some of our other material compatibility ratings with ISOBUTYRIC ACID. 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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