2007-12-07 07:00:19 · 3 answers · asked by constantwonder 2 in Arts & Humanities ➔ Visual Arts ➔ Painting
Do you mean the tightening keys? They are either plastic or wooden triangles.
When a stretched canvas gets loose on its stretchers, canvas can be made tight again by inserting the tightening keys into the corners of the stretcher bars (there is a little slit for them to slip into) and then tapping them in with a hammer until tension is restored to the stretched canvas.
2007-12-07 07:11:59 · answer #1 · answered by Bleu Cerulean 4 · 1⤊ 0⤋
If you mean black spots, those are seeds. Lower quality canvas is less refined an still has seeds included in it.
DOH!
You mean the triangles,
http://en.wikipedia.org/wiki/Tightening_key.
They are used to stretch the canvas. just tap them in the slots you find in the stretcher bars. You keep slightly increasing the tension until your canvas has a drum sound.
2007-12-07 07:07:22 · answer #2 · answered by Puppy Zwolle 7 · 1⤊ 0⤋
Yes they are right. I wet my canvas in the shower or bath, first then put them in and when It dries it is very tight.
2007-12-07 12:20:04 · answer #3 · answered by Jared_Bishop 2 · 0⤊ 0⤋