About - Aperture Pours
The fundamental technique employed in the creation of these pieces is typically
referred to as an aperture pour (pot melt). Essentially, a selection of glass pieces is
collected in a terra cotta pot which is supported above a shelf in a kiln, and which is
then heated to approx 1700 deg. F. The glass "oozes" through an opening in the
bottom of the pot and puddles on the shelf beneath. Amongst a variety of other
process variables, the results depend on the glass selection and how it is staged in
the pot. With luck, the puddle will show great visual texture.
For most of my works, the resulting puddle is then cut into several dozen 1" square
tiles which are then reassembled to create a subtle but colorful "canvas". Upon this
background, I have improvised (for wall-hung pieces) with the inclusion of simple
frosted (sandblasted) images, to provide a focus to the piece and to invite closer
examination of the melt.
One of the most skilled and successful practitioners of this technique is Steve
Immerman of Clearwater Glass Studios in Eau Claire WI. Steve's day (night?) job is
as an oncologic surgeon (YouTube interview at
http://www.youtube.com/watch?v=AD__t8GGVbI). More detailed discussion of the
technique can be found on Steve's site http://www.clearwaterglass.com/ (tab
"Tutorials" / "Aperture Pours"). Illustrations of Steve's work incorporating this
technique can be seen at "Glass Art Images" / "Meridian", "Axxcept" and others.