Somehow I’ve been convinced that true modellers glaze windows with real glass. I’m not sure if it’s really better; the passenger car has plastic windows, and they look fine to me. However, there is no doubting that when you tell anyone – even a non-modeller – that the windows are glazed with glass, they are duly impressed.
So, after a day of searching the house from top to bottom for my 25-year old box of microscope slide covers, I sat down to glaze some windows. Now, the fact that the box is 25 years old should tell you something about the frequency at which I cut glass windows. So, here are some pointers for future me, some of which I remembered, and others I didn’t.
- Use a diamond tipped scriber to score the glass, and break it with a sharp tap over an edge (I use the box the glass came in).
- Try to cut to the exact size you want, rather than trimming small slivers from a larger piece. Slivers are hard to make on purpose.
- Draw the outline of the glass on a piece of paper, rather than trying to make a mark on the glass itself.
- Score on a smooth, hard surface rather than a cutting mat. A flexible surface will allow the glass to bend and break unpredictably.
- You’re going to mess up a few times, so expect some waste.
- Glazing the frames saves on handling the glass. You don’t want to touch the glass and leave a big thumbprint on it.
- I use Weldbond to glue the glass. CA will apparently fog it, and we don’t need any strength in the bond anyway.
I feel that red window frames are a bit of a cliché, and on #10, I painted the window frames green. However, #622 is a passenger engine – you can tell by the lining on the cab and the tender – and so I’ve painted the window frames to match the passenger cars.

Draw the outlines of the glass on a piece of paper rather than trying to mark the glass. 
Glazing the frames before installing them saved a bunch of handling. I use Weldbond for glass as you don’t want to ever touch the stuff anyway. 
You’ve got to admit the glass looks pretty good in this cruel closeup.
Rene – I’ve always found real glass gives off a different reflection/shine compared to clear styrene or acetate. It does somehow make a difference but is trying when it comes to cutting the thin glass. Great job (as always)!!
Cheers Jim. I’m not sure I buy it, but I’m glad you do!