Re: FD-16 Install Home › Forum › Ask A Member › FD-16 Install › Re: FD-16 Install chinewalkerUS Member - 1 Year (includes $3 online payment fee)Replies: 459Topics: 15 April 25, 2018 at 4:18 pm #74744 I don’t generally use sealants on those if they’re new gaskets. I do coat them with grease, though.