The traditional manufacturing process for pultruded polyurethane profiles requires multiple manufacturing steps and extra handling to pultrude
the part and then separately coat the finished product to avoid UV degradation.
Two hurdles overcome by the company to successfully pultrude
PU resins include the fast gel times of the raw materials when mixed and the tendency of the chemistry to produce internal voids in the material during gel and cure.
Coupling together Bayer's specially formulated grade of Baydur[R] PUL polyurethane and pultrusion know-how with Deceuninck's expertise to design and develop tooling, and rapidly pultrude
complex shapes were keys to the success of the balcony door.
Electrical insulator bars 16 mm in diameter can be pultruded without any center cracks, Dow reports; and in the civil engineering industries, fabricators use the resin to pultrude
concrete re-bars and larger profiles for use as bridge decks and girders.
the trailer components, the group turned to Pultrall, who has been involved with Bayer MaterialScience LLC for many years and is a customer of Bayer Inc.