This transparent seal can be used with the existing crystallography plates such as CrystalClear Strips, Greiner CrystalQuick™ 96 Well Protein Crystallization Plate, Corning® 96 and 384 Well Crystallization Plate, Intelli-Plate, and AxyGem™ Plate. In addition to sealing crystallography plates, the UltraClear™ seal can be used to seal PCR plates. It can be used to seal polycarbonate, polypropylene, and polystyrene plates. This seal is optically clear and is designed for use in Real Time PCR experiments. The UltraClear™ film is precut to completely fit 96- and 384- well crystallization plates or microplates. The endtabs of the seal are perforated to facilitate positioning while eliminating fingerprints, which could interfere with optical clarity or view field.