The Classic canvases are eraser-proof. Under the following conditions, you can remove sketches without leaving any residue.
To paint a stretched canvas, it takes some preparation. Especially the decision about the motif is not always easy. It helps to first sketch the motif before you paint over it. We explain here what you can use to sketch on a canvas and how you can correct these sketches with erasers.
Depending on the type of paint you want to use on your canvas, you can make your preliminary drawing using different methods.
Since the preliminary drawing is often no longer removable after the first layer of paint, you should consider whether your painting is subsequently glazed or opaque. If the paint application is only thin, it is possible that remnants of the preliminary drawing will still show through. In this case, it can help to make the preliminary drawing in the same pastel shade as the final painting. In this way, the drawings disappear with the applied color.
As a general rule, a preliminary drawing on a canvas is most successful with soft painting materials, since these can better compensate for the unevenness of the canvas surface. The following means are possible for preliminary drawings on canvas:
The drawing tools mentioned can be largely or even completely removed again from a canvas with the appropriate eraser.
It is important here that the drawing is on the top layer if possible, otherwise the color area above it would be erased. Especially when working with acrylic, nothing can be removed later due to the setting of the paint.
The painting surface must be dry for erasing. If the material is damp, the eraser cannot grip properly. If the canvas already has paint or only water on it, it is best to wait until the canvas is completely dry before erasing.
The choice of eraser is essential. If you want to erase on a canvas, make sure when you buy your eraser that it is as soft as possible. A lead ink eraser, for example, is too hard. Better are erasers from the art supply store or so-called dirt erasers, which do not leave streaks and have a high absorption capacity.