Introducing carboxylic acid groups to the polymer backbone of NBR (nitrile butadiene rubber) significantly alters the rubber’s properties – extra crosslinks in the polymer – creating a polymer matrix with significantly increased strength, tear, modulus and abrasion resistance at the expense of reduced compression set, water resistance, resilience and some low-temperature properties.
XNBR is recommended for applications requiring good heat, oils and abrasion resistance, such as automotive components.
At DP Seals we pride ourselves on being able to provide specialist advice in selecting and developing exactly the right blend of materials to meet a vast range of performance requirements.
We also maintain a large quantity and variety of quality raw materials in stock, enabling us to offer fast turnaround and provide for tight deadlines.
The information provided here is only a guide to its primary characteristics and uses. The relationship between material, product performance and blend options is complex.
Contact us if you are unsure about the best material for your application on +44 (0)1202 674671 or, check out our article: “Mind the gap – a guide to custom rubber” for ideas or explore our rubber compound data-sheets.