Steel coil railroad car with a cover having a gasket

A steel coil railroad car comprising:

• a container portion having upstanding walls, the upstanding walls terminating in a top edge;
• a coil cover comprising:
• a cover body having a bottom edge, a U-channel at the bottom edge of the cover body;
• a gasket comprising:
• a base having a mediate section which joins opposite-flanges;
• a bulbous portion defining a volume, the bulbous portion having a mediate flat section that joins opposite arcuate sections;
• the mediate section of the base being thicker than the arcuate sections and the flat section of the bulbous portion;
• the gasket being retained in the U-shaped channel in such a fashion that the base contacts the mediate portion of the U-shaped channel;
• and
• the gasket being compressible upon the engagement of the gasket with the railroad car so as to form a seal between the coil cover and the railroad car.