Thursday, 22 August 2013
Stopping the rot
Now I am no chemist (ungraded at ‘A’ level – quite a feat!) and I know we’ve touched on this topic before on this blog but, as far as I can make out, lead rot is an oxidizing process possibly helped along in this case by the figures being dunked in chlorine to remove the old paint. Mostly the metal just looks a bit tarnished but in places there are deposits of a white powdery substance.
In the past my remedy has been to brush off the powder as much as possible and then basically ignore the problem and apply a black enamel paint undercoat as usual thinking that once the figure is sealed it will stop any further oxidization. However, this kind of thinking (rather than taking a scientific approach) may be just the reason that I got that ‘ungraded’ result, so do any of you boffins out there have any other suggestions?