the reason i ask is because i pealed up my carpet and checked out the front floor pan and it is all broken but not rusty. It is kind of like some kind or tar or resin that has solidified, a bit like the stuff painted over welds, but the whole floor pan is covered in it and its painted the same colour as the car. the floor pan itself is underneath is white and seems in good condition so not sure what it is really.
some pics


any help would be appreciated it just looks tatty and want to sort it out
Thanks
Rob