Definition of in session. 1  1 : in the process of meeting formally Congress is in session right now. 2  2 US : conducting classes School will be back in session at the beginning of September.
Mylar Pieces. Circles & Hexagons. Multiple Sizes. Hexagon & Circle Mylar Pieces are heat resistant and made especially for quilters who desire to make perfectly shaped circles and hexagons each time with hand or machine piecing and appliquÃ©. Cut fabric 1/4 larger than Mylar template.
Mylar and other drafting films have been in use for decades. They have some advantages over paper: 1) Dimensional stability - they don't react to changes in humidity like paper does. They also tend to stay flat and don't stretch or shrink. 2) Strength and durability - drafting film can be written on and erased more times than paper which tends to wear through. Eventually the textured surface can get polished and loose tooth, but you don't get holes in it. 3) Erasability - since the material is non-pervious, the ink does not soak into the fibers and can be more completely erased.