Reimagining High-Performance Compressor Gaskets Through Smart Elastomer Engineering

DRC – Doctors of Rubber Compounding

For many years, spin-on separator gaskets used in compressor and filtration systems have relied on FKM and other specialty elastomers to deliver the oil resistance, thermal stability, and low compression set required in demanding operating conditions. While technically effective, these solutions increasingly face challenges related to cost, supply security, and the volving regulatory landscape surrounding fluorinated materials and PFAs.

At DRC, we challenged the conventional material selection approach. Instead of following the established FKM route, we developed a new generation of gasket compounds based on advanced non-fluorinated elastomer technologies, including AEM, ACM, Denka ER, and Denka Evolmer. Through extensive material screening and formulation optimization, we successfully achieved the required sealing performance while eliminating FKM from the final compound design.

A key innovation of the project was our Smart Rubber Engineering methodology. Rather than using polymers and additives only in their traditional application areas, we transferred performance concepts from different elastomer systems and used smart combinations of advanced polymers, fillers and curing systems to achieve the desired sealing performance. In several cases, additives originally developed for their other performance targets delivered unexpected benefits when re-engineered for compressor gasket applications.

Combined with carefully selected reinforcement systems and high-performance additives, new-generation elastomers enabled an outstanding balance of oil resistance, thermal ageing stability, low compression set and long-term sealing reliability.

The project ultimately delivered industrially validated separator gasket compounds capable of meeting stringent customer requirements while offering more sustainable alternatives to conventional fluorinated elastomer solutions. The new material platform not only reduces dependence on imported specialty polymers but also supports the industry’s transition towards PFAs-free technologies and more circular material solutions. This project also demonstrates that sustainable innovation is not always about discovering new materials. Sometimes it is about finding smarter ways to combine existing and emerging technologies to achieve performance without compromise.

DRC continues to advance high-performance elastomer solutions through material science, circular thinking, and purposeful innovation.