Stencil printing has been the core technology at the heart of the surface-mount revolution. MicroCare and DuPont conducted a comprehensive review of the papers used in automatic under-stencil cleaning. The research strongly suggested that today's stencil rolls are sub-optimal in fine-pitch applications. The DuPont labs assembled and tested a large number of new stencil wiping materials and tested the samples on thousands of PCBs at four major production facilities. The research has confirmed that stencil wiping fabric can contribute important improvements to the stencil wiping process which can significantly enhance through-put while reducing production costs.