Originally Posted by RudemAn85
I think this will solve just about everyone's problems here... Tonno Tonic does not harm the vinyl of the cover, nor does it add or inhibit the uv stabilizers within the vinyl. It's a protectant and also gives it a great shine. I know people who had used trim protectants in which it actually start to deteriorate finish. This is specially made and I seriously swear by this...
you should always use something safe for the tonneau cover, like what rudeman posted.
NEVER use armor all, theres a huge tag on my cover that says "DO NOT USE ARMOR ALL ON THIS COVER"
it will make it dry up and shrink, not good.