DuPont™ Vamac® G is a terpolymer of ethylene, methyl acrylate, and a cure site monomer. It is cured using an  amine-based vulcanization system. This gum elastomer includes a small amount of process-aid and has a  nominal specific gravity of 1.03. It has a mild acrylic odor. Use adequate ventilation during storage, mixing,  and processing to prevent accumulation of residual vapors. Storage stability is excellent.

Major Performance Properties and Applications 

Vamac® G has excellent high-temperature durability and oil resistance with service lubricants, coupled with  good low-temperature flexibility. Compounds of Vamac® G are typically rated at 175 °C for heat resistance,  with oil swell values around 50% in IRM 903 oil. The properties of Vamac® G make it well suited for a wide  range of automotive applications, including powertrain seals and gaskets, rocker cover and piston seals, oil  coolant hoses, power steering hoses, turbocharger hoses, crankcase ventilating tubes, coverings for fuel and  coolant hoses, O-rings, grommets and spark plug boots.  

Vamac® G is an excellent vibration damping material that is uniquely insensitive to temperature over a range  of –30 °C to 160 °C. Compounds of Vamac® G are suitable for use in torsional dampers and isolator pads.  

Vamac® G is a halogen-free polymer and does not decompose to give off corrosive gasses when exposed to  flame. It is used for flame-retarded, low-smoke, non-halogen wire and cable jackets and in non-halogen, lowsmoke flooring. 

Vamac® G is well suited for injection, transfer and compression molding, and is easily extruded.