Sealing the Back
Sealing the back of the frame serves two functions.
First, it provides an aesthetically pleasing appearance, concealing the
attachment of the artwork into the frame.
Second, it provides protection from insects and dust. Insects lay their eggs
inside of frames, because the cellulose from the paper products provides a food
source for their young.
There are two acceptable methods of sealing the back of the frame. The most
common method is using kraft paper. Available in both brown and black, this is
a heavier weight paper that can withstand many years of use. It is attached to
the frame using a double sided tape. Acid free materials are used in
preservation and museum framing.
The second method is taping, which is predominately used in Europe. This
method uses a two inch wide tape to cover over the attachments, usually
staples or framer’s points. While this method works well, it allows the viewer to
see the backing board and can release after time.
Metal frames, because of their channel construction, are not normally backed
but at Artistic Framing we seal the backs to prevent insect penetration.