Printing Black Rubber Gasket for car lamp ??

[Dinoman]

Hi, I am new to 3d printing and not even got a printer yet, so I am looking for some advice on what to buy and what material I can print with, as I am into cars, and I would like to be able to draw/design on Freecad some car parts which I can 3d print and then have someone else mold or cast them in Aluminum etc, First thing I want to make is a small rectangular black rubber Gasket for a car rear reflector 80mm X 55mm X 6mm thick, so can all 3d printers print in a variety of materials and where do you get the Materials from, again Thanks for any help, Regards DM