EV Bulb Trim Seals and Dual Durometer Rubber
EV bulb trim seals are extruded rubber products with two sections: a compressible bulb that provides the sealing action, and a retainer section that attaches to a flange. Each trim seal section has a dual durometer, or two different hardnesses. In electric cars, bulb trim is used for trunk seals, door seals, and tailgate seals. In electric buses, trains, and works trucks, these rubber products are used to seal compartments.