I’ve always been hesitant to use the stick on stuff, mostly because I’m worried that it will trap moisture and rot out the floors. Since my truck sees a lot of mud and dirt I want to be able to hose it out.
I’m a long way from bodywork at this point but when the time comes I think I’ll probably use the lizard skin products from underneath so I can keep a relatively “stock looking” metal floor inside. From there, I’ll probably lay down some sort of rubber Matt.
My only concern with Lizard skin is that I have no idea how robust it is, or how it will hold up exposed to dirt/rocks/road debris in the long run. I may cover it with bed liner or undercoat but I also worry about adhesion of the undercoat to the lizard skin an the application of so many layers of thick pain products fighting gravity over the years.
I sanded to bare metal, applied Rust-oleum Marine coatings primer and paint. Then I laid down over the entire floor a layer of firewall insulation (a product made from recycled denium) that I purchased from Summit. After that I laid ￼￼￼￼￼down and cut in place a rubber backed walk off/entry mat. And finely placed the original Toyota mats on top. Much quieter and the cabin temps are now way cooler!
My worry with that recycled denim material is that it looks a lot like the sort of material that rodents like to nest in. I'd like to avoid giving them the ingredients for a happy home if I can help it.