Some of the T86 Radar equipment labels were badly corroded for which I devised a restoration method.
Orginally the markings were mechanically engraved through a black anodised finish.Not having access to either of these technologies I chose laser engraving with a 2.5W laser diode mounted on a two axis platform and gantry.
To preserve the original appearance I sanded a clean surface of the rear of each label, white primed with an enamel and matt black top coat. The laser cuts easily through the black but is reflected by the white so is not even marked. Here are the first four labels completed.