Masking is a term which means “ to cover”. When rubber stamping it is used to bring images to the forefront by covering the main image with a mask, and then stamping over it with another (background)image. This technique is easy and very useful.
Choosing Mask Paper.
Any paper can be used to create a mask, the thinner the better. A post-it note is ideal as it is re-usable and cheap! They also come in a variety of sizes. Masking film is available made especially for this purpose, however I would try using a post-it note to begin with.
Creating a Mask
Stamp the foreground image onto the mask paper of your choice with a dark ink. Cutting is the most crucial part in creating the mask. Cut just inside the foreground image to prevent “halo’s”. Practice on any scrap paper until you feel confident and have reached the desired effect.
Using the Mask
Stamp your first(foreground)image onto cardstock. Carefully place the mask over the image. Stamp another(background) image over the first image. Lift off the mask to reveal the layering effect. (This technique is used frequently when using word background stamps.)
Storing your masks
Since you have taken the time to create your masks, store them in a notebook or clear plastic folder for later. If you are careful with them they can be used time and time again.
Magi Film is a great product for masking. It is clear and when using as a mask will allow you to place the image exactly over the original one on your project. So once you have mastered the technique invest in some of this film. You can also use it for negative peel off work.