Over recent years the automotive aftermarket has experienced extensive change in engine design and performance. Through higher compression ratios and adding technologies that allow engines to operate as close to the stoichiometric air/fuel ratio as possible without the need for fuel enrichment to manage exhaust temperatures. The need for technical changes in sealing applications in the industrial gasket market has also been evident during this period.  The lightweight components are sealed through high-strength gaskets and seals made to endure high heat and pressure.