RLM 81/82 – More secrets unveiled

[ouidjat]

Originally Posted by Graham Boak

I find this statement about darkening very puzzling, because it is seems clear from b+w photos that 70/71 have very little contrast when new, yet considerable contrast when older. 70 is pretty dark when new anyway: how much darker can it get? It would seem from the photographic evidence that 71 gets lighter with age.

Hi Graham,

I will say more: I've never seen paints darkening with time under sun/weather effects. (Just look at your old car if you haven't closed garage)
But, and too, the weathering effect depends of the colour/tone (Hence the contrast enhancing you are talking about when getting older) ; for example, it is well known among the sailors that a red sail is more resistant than a white one (same quality, same fabric, same factory)... Without talking about a blue one which is catastrophic!!

Regards, Franck.