The advanced fabric used in the GREEN MONSTER product line is like no other product and is comprised of a synergistic blend of virgin rayon and polyester fibers bonded with a tough proprietary polymeric resin. Magnification shows the fabric to have a fiber structure with many open voids for aggressive collection of solder paste and adhesives on a "micro" level. This bold fabric has the porosity required to maximize the use of vacuum systems, unlike other smooth paper-like products that push and smear and don't allow adequate air to pass through. The anti-static properties decrease the chance of a static discharge onto solder traces and components - especially when printing the other side of loaded boards. These anti-static properties also reduce the static attraction of dust and other contaminants.