Bumper modified material and method for preparing spray-free primer

The present invention relates to a bumper with a modified material and method for preparing spray-free primer. The invention is a material added by the supported amorphous NiSnB / (Mg3 [SiO10] (OH) 2) Talc reinforced bumpers modified material. First, after the chemical deposition method supported amorphous NiB / (Mg3 [SiO10] (OH) 2) Talc, then was modified by doping with metallic Sn: Process innovative technology embodied in the material prepared extruded polypropylene blended formula system. Materials and conventional bumper material was modified as compared to a strong film adhesion, direct topcoat, primer coating step is simplified, reducing production costs.