<VV> Light rust on floorboard

[Russ Moorhouse]

I have some light rust on just the passenger side floorboard, do to what I
believe is a leak from the vent.  I think the PO removed the vent and kick
panel when he ran a new antenna and failed to seal it correctly.  There are
a couple of holes, that are just starting about the size of a pin's  head.
I thought I read in Eastwoods catalog or possibly in a magazine about a
product that will stop the rust and fill any holes like this.  Does anyone
know what this product is and where it is sold?

Russ Moorhouse
'65 Corsa coupe 140 HP
Group Corvair Member
Kent Island, MD