i have remove the center console, front and rear seats as well as carpet and all under lay. i have removed all the floor bung to release all the water i had to remove some of the material glued to the floor to access the bungs. Found alot of moisture under edge of the material. Does any know how to remove the rest of this material from the floor and the rubber stuff from floor of the boot.
The best way to get the bitumen coating off is use a hot air gun and paint scraper. Heat up the coating slowly and scrap it off. It will take time
OR Before you heat up the bitumen look around for splits & cracks in it also form under the car push out the rubber plugs which will help lift up the bitumen.
Chip up as much as you can first before you start heating it coz i will get messy.
If heating doesnt work
Other way is to melt it with deisel, deisel is safer as it has a much higher flash point so it will be safe to weld around after. Just were gloves & protective clothing when you use it and wash yourself very well after if you leave it on your skin it will take your skin off.
Also another way I have used is to get a wire wheel in a drill and it will oblitorate it off the metal, just make sure you wear safety glasses when you do it, also it works better on bitumen that hasent been heated or had a solvent on.