Parts RIM (Reaction In Mold) and elastomer are characterized by the absence of expansion during the polymerization. The cells are closed and the realization of these pieces is more akin to conventional methods in the plastics industry.
High (> 1) density RIM parts are typically used for cowlings, ailerons ... The elastomer parts are still on their dedicated to such applications carpet stopper protection, friction piece, bumper ...
The elastomer offers good properties in terms of mechanical resistance and slip resistance.
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