Sometimes hairline cracks in gesso can be corrected by rewetting the surface of the gesso with a damp cloth and working it into the gesso layers. However, cracking is usually the result of too strong glue strength (high ratio of glue to water).
How do I stop my acrylic from cracking?
Cracking or crazing in acrylic and how to avoid it!
- Reducing the amount of water…. do not add more than 30% water to the paint. ...
- Add medium… ...
- High quality paint and low quality…. ...
- Be careful using acrylic ink… ...
- Temperature, humidity and fans… ...
- Don't varnish until the painting is completely dry…
Why is my gesso peeling?
If your gesso or paint layer is powdery or unstable, you've probably added water to them somewhere along the way. Water spreads the acrylic binder, leaving it less able to firmly lock the pigment into place on the painting surface – thus causing flaking, cracking or a powdery feel.
