Hi Julian,julian wrote: I've also started removing the rust & paint from the engine bay panel and have this mostly stripped back to metal. This brings me to the subject of how best to treat any remaining rust - it's almost impossible to remove all traces of rust unless the whole area is shot blasted, which I don't intend to do. Any words of wisdom from my fellow restorers would be very welcome.
Have a look at my post in Natter re 'Micro-blistering of 30 year old paint'.
Chris Spencer put me on to the Bilt Hamber website viz:-
"It is important that the rust is neutralised once you have prepared the panel - I recommend Bilt Hamber Hydrate 80 - link here" : http://www.bilthamber.com/corrosion-pro ... treatments
I've a feeling that you have already used one of these products.
Tony.
Classic car forums offer many suggestions regarding rust removal and prevention. Long term solutions require removal by grinding or cutting out of all but thin surface rust. Rust between seams and joins that cannot be seen perhaps can be neutralised with some chemicals usually phosphate based. Some form of seam sealer after priming with a phosphate rich primer should be applied to prevent further ingress of moisture. Then after painting with an appropriate top coat which could be an under body sealer or in this case a special battery box paint. Dousing in wax oil to fill any remaining cracks helps.
Keith.