fluoroelastomer o-ring (left) and kalrez® o-ring (right). the kalrez® o-ring exhibits less volume swell in trisolvent test
kalrez® perfluoroelastomer (ffkm) parts withstand attack from more than 1,800 chemicals, solvents and plasmas. the kalrez® product line delivers outstanding performance in aggressive process environments. whether it’s resistance to acids, amines, plasma, ultrapure de-ionized water or strong bases, by selecting the kalrez® product that is best suited to a specific application, manufacturers can improve seal performance in their operating environment. kalrez® parts are available in a number of different compounds that are formulated to optimize properties and give the best possible performance in various chemicals and temperatures. the kalrez® application guide can help users select the preferred product for temperature and chemical resistance.
minimal swell
chemically induced swelling can cause o-rings and sealing components made of other elastomers to extrude out of seal grooves, resulting in seal failures. kalrez® parts resist extreme volume swell when exposed to a wide variety of chemicals and solvents, including concentrated nitric acid, sodium hydroxide, ethylene diamine and steam. they have proven to be a cost-effective solution in sealing situations that require the greatest resistance to harsh chemical environments and high temperatures.