Shades of Green

Good evening, I have a question concerning liveries. After seeing an immaculate Braunton at East Grinstead, sadly not in the flesh, and comparing her 'green' with my favourite shot of 75027 and then with 46115 I can't work out the huge variations in the shades of 'green' considering they are all BR liveries. Would it just be natural paint fading or photo developing issues or was there an “early” and “later improved” a la Stroudley, colour. Unfortunately I cannot compare the latter two's tender emblems with Braunton's due to the angle of shot, to date, as it were, the livery. Is this brunswick??

 

http://www.southern-locomotives.co.uk/News/news.html - scroll down to the bottom for an interesting article on green!!

 

T

Thank you very much for that, Hurricane, nothing confusing there after all

 

Brunswick as far as I know is not the correct name for the colour used for BR green. Try deep bronze green. The Southern Locos article is very a interesting read.

 

it should be Deep Bronze Green but then every works seemed to have its own mixing guide and no two works it would seem used the same shade Western locos used chrome green also,this was a different shade also very close to the deep bronze green, , so that would have added to the problems of what the actual colour should have been,

 

There was a discussion on one of the "What's going on " threads about Braunton specifically, the upshot of which was that the engine and tender are strikingly different in colour from each other, as a result of being restored and painted at different places.

See http://www.national-preservation.co...-8th-september-2014.63215/page-19#post-944048 , the embedded YouTube video and the next three or four posts.

Tom

 

Don't forget, when it comes to colour the camera invariably lies. If you'd like a simple demonstration try this:-
https://www.google.nl/search?tbm=isch&q="mona lisa"

 

The GWR called it Mid Chrome Green and the same colour was adopted by BR. As I understand it the shade became known later as Deep Bronze Green or just Bronze Green but, within manufacturing tolerances, was the same shade. Williamson's of Ripon still supply it to the BR specs. In the preservation era paint has been supplied by several manufacturers and will have subtle shade variation but weathering, aging with heat and oil but most importantly sunlight on the day in question will all make the shades appear different. We won't even mention "pink" 4-6-0's! Ray.

 

34007 Wadebridge is another two-tone combination as she a borrowed tender that was restored and painted separately....

 

In fact the tender matches 34046 Braunton perfectly, as the two ran together when first restored.

 

I think this topic has been discussed many times in many places. I speak as having been a colour chemist in a previous employment. There are probably (at least) two important factors in today's discussions. One is the actual colour standard panel and it's probable drift over the years. The other is the pigments in use today, they are organic and drift far faster than the inorganic chrome salts originally used. The latter are now difficult to justify using in view of their awful toxicity.
Today we have colour matching computers, originally it was mark one eye ball, northern day light, overcast at mid-day!

 

In fact they are the opposites in terms of colors... although you would never be able to get that to show in a photo

 

talking about shades of Green, well this is a true story, whilst at the Kesr C&W, we were preparing the birdcage for repainting and we ordered the red undercoat, 5 tins of it from our supplier, and when it came, i looked at the can, it said undercoat red, so i signed for it, opened one can ready to make a start, and it was lighter than the stated colour, it was white, i called Alan, the supervisor, he said, its just the pigment give it a good mix, it didnt change colour, so we went through each can, yeap, dispite saying red, each was white, def a case of not doing what it said on the can