I’m sure someone has run into this but can’t find anyone talking about it. Our Promaster came with factory installed Mopar Spray on Floor liner on the floor and 3/4 up the wall of the cargo space in the van. Is it okay to stay in? Will it effect insulation? Will it make it an oven in there (it is black)? Maybe its good and it saves us time water/rust proofing! Looking for anyone who has had this and any advice and info if its a benefit or hinderance to the build.