I am not a carpenter, but I found Sawmill Creek in searching for something to fix the glass doors of my china closet. My house is rather dry, and the molding that is holding the glass in the paneled doors has dried out and is gradually falling out. I thought at first that it was caulking compound, but I see that it is a strip of malleable material. I think I saw exactly what I needed online, but I can't find where to purchase it. I think it is called a glass retainer. It is a long roll of crenelated brown plastic; the little protrusions would fit in the kerf (is that the right term?) between the wood and the glass panels.
The photo I saw had www.sawmillcreek.org on it.

Does anyone know where I can buy it? I would be extremely grateful for the information.

Thank you!

Wanda Trimnal