Gazim, As other have said, go to the source causing the problem, redirect the exhaust...Hopefully, You can hit the tailgate
with ultra-fine to wet sand Your problem out...As Bill said, if You
break through the clear than its repaint for sure...
There is NO strength in clear, and that is exactly why I always put color into My clear which gives it the ability to
cross-link...I am also talking lacquer color and clear...We had problems at GM with the white Corvettes, the clear would yellow, and it wasn't the exhaust because the whole car yellowed...The new
color coat and clear coat used today eliminated those problems...
Bill B.


1952 Chevy 3104 Shortbed 5-window
Remember; Politicians and diapers both need to be changed
often, and for the same reason.....