Biologix General Purpose Polypropylene Sealing Films by Biologix are clear 2.0 mil films for sealing polystyrene and polypropylene plates in ELISA, incubation and general use. The adhesive minimizes evaporation, cross-contamination and spillage, removes cleanly with minimal aerosols and is rated from -40 °C to 120 °C. Available non-sterile or sterile, 100 sheets per case.