How Do You Flatten Painted Cardboard

Mist the back of the paper with water using a fine mist. … Place the painting image-side down on the sketch paper.Cover with another sheet of sketch paper or a towel. … Put weights on top (you can use books if you don’t have weights).Place the painting image-side down on the sketch paper.

How do you flatten cardboard after painting?

1. Mist the back of the paper with water using a fine mist. …
2. Place the painting image-side down on the sketch paper.
3. Cover with another sheet of sketch paper or a towel. …
4. Put weights on top (you can use books if you don’t have weights).
5. Place the painting image-side down on the sketch paper.

How do you stop cardboard from curling?

1. Store your stuff in a dry place. …
2. Don’t use a paint too wet for your particular board. …
3. Use a better board. …
4. Don’t rely on foamcore. …
5. Fill with styrofoam. …
6. Make it a box. …
7. Use a polymer or nitrocellulose glue.