Painting the case enables it to be now protected and covered so it can be cleaned if required. The case will hopefully have some signage and instructions painted onto!
Paint used, is
Dulux Black PGI.A9
Taubmans_w.lib
Neutral 1 Litre
B 2Y 26N
J 0Y 12N
I 0Y 16N
W 0Y 13N
Water based enamel - never knew it existed! :)