A popular application in the automotive industry sound dampening becomes more and more of interest to manufacturers producing polymer parts that will benefit from having sound damping or deadening properties. For example, silent waste pipes is an area where noise reduction is rising in importance especially in high-rise construction and new buildings.
MagniF is used to give extra density to a polymer and therefore to produce heavy compounds. MagniF is very easy to disperse into a variety of plastics or rubbers, be it polypropylene or polyamide. It is possible to reach densities of above 2g/cm³, which is very difficult to reach with other standard mineral products. High filling levels of 60-80 wt% are typical in sound dampening applications to ensure transmission reduction or elimination. The MagniF filled compounds are extruded into very high-density parts which have an excellent surface finish. These polymer parts are mainly used in the automotive industry to dampen the engine noise transmission to the cabin.