make sure your covers are true and flat. As long as your two surfaces are clean , you may not need sealant.
Cork will last about 7 years tops. Ultra Grey is the best sealant I`ve seen. Both sides. Thin bead.


~ BD.
"You won't find me in an old folks home" Pioneer Florida Cracker
1958 Apache Stepside
1958 Apache 1/2 ton Panel
1959 Apache 1/2 ton Panel