In inherited most of my Signals from Andy Rush, at some stage on this forum I have detailed all of them and what they do. These were laboriously made from scratch by Andy using sundry parts. The Arms though in this case his were all Disks were made from sundry Pill Bottle Tops. Now these have served well over the near 15 years that they have been outside, but they were clearly not made to take UV light for that period of time as the pic below shows.
Fortunately the Shunt Signal with the yellow cross was made out of one of those circles that you have to press out of a plug back to allow fitting of wires so is in good shape except perhaps for a repaint. Whilst sorting through a box of Metal that I inherited some years back I found some stamped Brass Circles, though a little smaller than the original Disks they were sufficiently large enough to be used as replacement ones. Thus below we can see the 8 disks after painting, they were first given a coat of etch primer, then white undercoat masked for red oxide undercoat for the red area’s which were hand splashed a suitable Red. Good job I tidied up that shelf! I have 6 more ready now should any of the others on the line go UV up.
Below you can see the signals back in place, doh I have repainted the Shunt Disk and done the cross arm white instead if yellow! Originally it was a piece of Yellow Tape. Oh well out with the pot of yellow.
I am one of those guys that hates chucking anything out and as these were from Andy I decided to put the old Disks in the S&T junk yard at Harzegerode. This area is a regular dumping ground for all sorts of things that may get used of a scenic and S&T nature. That white drum irks does it not?
So that has been attended to as well with some scribing and hack saw dragging to better represent a wooden construction. A spray of Halfords Rattle Can Black Undercoat and a dry dab of Matt Grey from a piece of foam has finished the transformation to an item that now does not shout at you.