Ballast Gluer Fixer 39006

[Woody Elmore]

Thinking about matte medium, I believe there may be different kinds and what we used to use was the acrylic variety which didn't get brittle. We used to dilute it with water and apply it with a dropper. The Elmer's white glue, even diluted, would make the ballast brittle.

About the price - thinking back I used to get a teacher's discount at a local art store so that is why I remember the matte medium as being cheaper than white glue.

I'm sure there are other treatments to keep ballast in place.