Re: Asbestos Home › Forum › Ask A Member › Asbestos › Re: Asbestos frankrUS Member - 1 Year (includes $3 online payment fee)Replies: 6715Topics: 51 March 25, 2018 at 1:26 pm #72997 As I understand it, most OMC gaskets (the black ones) had asbestos in them for strength as well as heat resistance. How true and how much, I don’t know.