Glass Paint: The Challenges And The Joys

An article we wrote

The editor of ‘Artists & Illustrators’ asked us for an article about the challenges and joys of stained glass painting.

Now his readers already use brushes with considerable skill. But, of course, they work on paper or canvas etc. Not glass.

We had just 500 words or so. Here’s the article we wrote for them.

Glass Painters – Would You Like to Dance?

In the studio this week, we’re painting column after column for the tycoon’s stained glass skylights.

Our sequence is:

  1. Undercoat
  2. Trace
  3. Strengthen
  4. Flood
  5. Highlight
  6. Etc. etc.

In other words, the lines are put down in two layers – steps 2 and 3 – not in one go.

A column from the tycoon's skylights - undercoat and (copy-)traced only

A column from the tycoon’s skylights – undercoat and (copy-)traced only (strengthening comes next)

Now it isn’t mandatory to do this. It’s certainly possible to do the lines just in one go. Sometimes that’s what you must do.

And right now I just want to have a brief discussion with you about how to think about this question: whether to trace (with the glass on top of the design) and then strengthen (with the design on one side), or whether to trace and strengthen in one go

Liquid Or Powder: Which Gum Arabic Is Best?

We prefer liquid: here’s why

Gum Arabic isn’t essential. (Patrick Reyntiens, for example, barely uses it at all.) It’s just that, without it, our dried, unfired paint would be extremely fragile.

Also, we would not be able to shade and matt as we want to – that is, all in one firing, including oil-based paint on top.

Now stained glass painting stockists mainly stock gum Arabic in powdered form.

But I prefer the liquid, and here is why:

  1. Liquid is far easier to mix in than powder when you first prepare your basic lump.
  2. When you need (as you sometimes will) to adjust the adhesive strength of your paint, you’ll again see that liquid gum Arabic is far easier to mix than powder.
  3. To use powder, it’s best to mix it first with – water … Now when you buy liquid, you know the adhesive strength is evenly distributed throughout the solution (which it’s difficult for you to know when you mix it up yourself), so that’s one more problem taken care of for you.

Liquid gum Arabic is the same medium that water-colour painters use.

So just find a good supplier of traditional art materials, and they will help you.

Ours is made by Winsor & Newton.

Stained glass painting - liquid gum Arabic is easier to work with than gum Arabic in powdered form

Stained glass painting – liquid gum Arabic is easier to work with than gum Arabic in powdered form

Best,

David Williams of Williams & Byrne, the glass painters

Art vs. Craft – also known as Lunacy vs. Common Sense

Plus a helpful video about how to shade with oil

It is 3:12 in the morning. I am wide awake as I often, listening to those radio podcasts which I can’t hear during the day because I prefer silence when I paint glass (or J.S. Bach).

Suddenly, in the middle of the night, I am attacked by a sudden fit of breathless spluttering, a violent seizure.