United States Parafilm sealing membrane is an automatic sealing and can be molded, toughness special film products, widely used in molecular biology, cell biology, Immunology and other life science research laboratories.United States penetration of Parafilm sealing membrane has a unique performance, water vapor permeability properties and is highly resistant to corrosion.All thickness of Parafilm sealer products are 0.005 "(127 µ m).Can easily get into "fast knot" is another new feature of Parafilm ® m sealing film.Parafilm ® m sealing film length can even stretch to 3~4 times without breaks.