I say primer, but its actaully this stuff:
http://www.frost.co.uk/item_Detail.asp?productID=8217
Product Description
Whilst any paint will provide some degree of protection from rust for a while, no other is as permanent as POR-15. When others have chipped, scratched, flaked, and peeled, POR-15 will still be preventing rust. Available in black, silver, gray or clear, US pint or quart POR-15 can be sprayed or brushed on to provide a rock hard, yet flexible, non-porous coating that will not shrink, peel, or crack. It is totally resistant to road salt, petrol, battery acid, etc., and actually dries harder in humid damp conditions. Ideal for suspension and chassis protection, and you can apply a topcoat of any finishing paint. This is protection you can count on. Smooth surfaces should be treated first with POR15 metal ready.
But yeah, the original plan was to seal it once and for all and be done with it!
Kev - Body colour looks nice but I dont have the patience or ability to paint it properly
Neil.