i used a chistle to get the old sealer out. Sanded, wire brushed, used a grinder ...i'm just desparate to make sure its all gone before i start filling, sanding and painting etc.
i know there still some in there... i just know it.....bloody rust


what can i do myself, to be totally sure.?
also.. whats the best method of protecting the metal once its rust free... rust protector, primer (how many coats)etc..
thanks.