I've had little bits of rust in the wheel arches (around the suspension) and underneath, so I've decided to do it properly and remove everything back to bare metal.
I'm using 3 coats of Por 15 paint but I'm not sure what to use as a final layer underneath the car, I'll be using stonechip in the wheel arches and was thinking should I use this underneath aswell or use an underseal.
So,
I planned to use Upol Gravitex Stonechip or should I use Dinitrol stonechip, it's more expensive.
Should I use stone chip underneath or an underseal (underbody wax) such as Dinitrol, will this give provide better sound deadening?
Thanks