[NostalgiaRadioTime]

I've always used 3M Super 77 spray glue with good results. The trick is to spray an even coat on both surfaces and let it sit for a few minutes before mating the cloth to the backing board. Gorilla Glue or Contact Cement would be over kill. I've also used a thin coat of Permatex Clear RTV Silicone on sets where the cloth is just glued to the inside of the cabinet with no backing cardboard or board to hold it in place.