you would be better just giving the lot a spray with a jet wash giving it a coat of hammerite waxoil where need be ane leave it be. Good stuck that underseal.
brake fluid as a cheap alternative? in with slob on this one, stick with the army barmy stuff. dont get many if any suffering from chassis rot and we are still running a few 1986's in the fleet.
thanks for the tips guys, I want to remove the underseal, as the wet has got under it in places, and rusted the chassis, so I thought i would get rid, red oxide it, and waxoyl
I found that if you get an old wood chisel and hammer, when the underseal is cold like today, and chip at the underseal like you would a piece of wood then it shatters in large pieces leaving the solid shiney paint underneath.
Make sure you have goggles on and wear ear defenders the noise is deafening.