a method of reforming a thermoplastic elastomeric composite weatherstrip for a window opening of a motor vehicle comprises the steps of fabricating the weatherstrip through extrusion , molding or other conventional means , heating a section of the weatherstrip to be reformed , applying and conforming the heated section to a curved form or fixture having an included angle greater than the desired final configuration , cooling the weatherstrip while maintaining contact with the fixture and aging the formed weatherstrip to achieve angular equilibrium . the resulting weatherstrip product is also disclosed and claimed .