Elastomers from our mixing plant
KACO develops high-performance elastomers according to customer specifications and market requirements. We develop the materials not only for ourselves, but also for other elastomer processors. All high-performance elastomers are manufactured in our own mixing plant to the highest quality standards.
FKM: First choice for shaft seals
KACO’s portfolio of FKM materials includes bisphenol- and peroxide-cured grades with glass transition points from – 4 °C to – 40 °C for static and dynamic applications in the hardness range from 50 to 90 Shore A. The upper temperature limit is over + 200 °C. The materials can be processed in CM, TM and IM processes as well as in cold runner and needle closure systems. Their main areas of application are shaft seals in engines, fuel pumps and gearboxes.
ACM: Proven in static and dynamic sealing systems
KACO offers various ACM compounds in a hardness range from 65 to 80 Shore A and a thermal application range from – 30 °C to + 150 °C. Three new HT-ACM compounds extend the application range to – 35 °C to + 170 °C. Of course, these materials can also be processed in all known manufacturing processes – including cold runner and valve gate. These high-performance elastomers are used for static and dynamic sealing systems.
AEM (VAMAC): Easy to process
AEM materials are available from KACO in hardness ranges from 60 to 90 Shore A. Their oil resistance and glass transition points vary according to requirements. They can be processed very well in modern manufacturing processes. All AEM materials from KACO are DOTG-free. They are mainly used in so-called “gear pistons” and in static sealing systems.
HNBR: Fully hydrogenated and peroxide cured
KACO’s HNBR materials are fully hydrogenated and peroxide cross-linked and offer impressive ozone resistance. The materials are available in a temperature range from -40 °C to +135 °C and in hardness ranges from 50 to 90 Shore A. The HNBR materials are used in sealing systems of the vehicle cooling system, in power steering systems and in the air intake and exhaust management of engines.
PTFE compounds: Special developments
For many years, RWDR with PTFE lip have replaced the classic FPM RWDR mainly in the crankshaft and camshaft area. Together with a leading PTFE compounder, KACO has developed several PTFE materials for this application. Furthermore, a PTFE compound is available for sealing systems in fuel pumps.
NBR: Special know-how in all areas
For the sealing expert, NBR materials stand for very good media resistance. The material offers a hardness range from 60 to 90 Shore A and a thermal application range from -40 to +100°C. This makes them suitable for use as shock absorber seals or washing machine seals, among other applications.