A 36 µm soft non-permeable aluminum foil sealing film with 28 µm layer of strong medical-grade acrylic adhesive, AlumasSeal IITM sealing films eliminate the need for heat-sealing devices or mats during thermal cycling. Each sealing film measures 82.6 x 146.1 mm and offers sufficient sealing area for all PCR plates. Length between the perforations with end tabs removed is 125.4 mm. Compared to other aluminum foils, AlumaSeal II has less tendency to roll back or itself when removing the backing paper and conforms well to the plate during application. easily pierceable with single or multichannel pipettors and robotic probes heat & cold resistant, recommended for temperatures from -80 ∞C to +120 ∞C certified DNase-, RNase-, and nucleic-acid-free excellent barrier properties, virtually no sample evaporation or drying