EVOPRENE COGEE 634 was developed to provide material options which will co-mould or co-extrude to Engineering Thermoplastics (ETP's). COGEE grades were developed to allow a soft touch component to be applied utilising either co-moulding or co-extrusion techniques to impart a degree of tactility to the finished article while the Engineering Thermoplastic provides the structural strength and/or rigidity.