How To Flatten Canvas Painting. Remember that you have to be super careful dont put pressure on your canvas. Lay down the diamond painting canvas on a flat surface. Put a canvas on top. Cover the surface entirely with a towel.
Make sure that the canvas is flat and not curling. Gently and quickly iron around the wrinkles. Put a canvas on top. Spray water on the creased area to make it softer.
Cover the surface entirely with a towel.
Gently and quickly iron around the wrinkles. Spray water on the creased area to make it softer. Cover the surface entirely with a towel. Gently and quickly iron around the wrinkles. Remember that you have to be super careful dont put pressure on your canvas. Put a canvas on top.