Fixed frames have many disadvantages. The mesh relaxes and the tension changes; each stencil is mounted at a different angle to the frame; the frame takes significantly more space for storage and the old style frames use epoxy and must be recycled.
ZelFlex frames provide constant tension in both X and Y dimensions. They can be re-tensioned by simply applying air pressure, and they do not require a license for the clamping pattern. The stencils can be stored as sheets instead of mounted stencils, so they require less storage space
