Underseal recommendations

[hunker7]

Under the arch liner, bilts underseal is good but brown. Rustbusters is self healing and black, also very good.

Might be stupid question but is Rustbusters same as Dinitrol?

[Tractor Dave]

Under the arch liner, bilts underseal is good but brown. Rustbusters is self healing and black, also very good.

[tango123]

Tractor Dave He’s your man for this kind of stuff.

[hunker7]

I'm in process of giving my UrS4 some long overdue TLC. Plan is to wire brush the wheel arches, then follow up with Bilt Hamber Hydrate, Primer, Bilt Hamber Chassis Epoxy and this is where I'm undecided. What underseal would people recommend? Something satin/matt preferably.

POR 15 underseal seems to be the go to from the older posts I've seen, is that still the case?