Start with the application.
Neoprene is a common name for chloroprene rubber (CR). It offers a useful balance of properties for selected general sealing applications. The medium, movement and compound must be assessed together.
What to verify
Confirm fluid compatibility and any refrigerant or lubricant pairing. Resistance to one oil or chemical does not establish suitability for another. Request compound-specific data.
Specify more than the polymer
Record dimensions, compound identification, hardness, tolerances, working conditions and quantity. Ask for a grade-specific datasheet before design approval.
General polymer guidance is not a guaranteed rating for a finished O-ring. Validate performance in the intended assembly.
Dimensions and standards
Give the inside diameter and cross-section with units. If using a standard size, include its exact designation and applicable revision. Confirm dimensional tolerances against your drawing.
Technical references
General background: Parker O-Ring Handbook and Trelleborg elastomeric O-rings. These references do not certify Rubrings products or establish any affiliation.