AlumaSeal II™ Sealing Film for PCR and Cold Storage A 38µm soft non-permeable aluminum foil sealing film with strong medical grade adhesive, AlumaSeal II™ sealing films eliminate the need for heat-sealing devices or mats during thermal cycling. Compared to other aluminum foils, AlumaSeal II™ has less tendency to roll back on itself when removing the backing paper and conforms well to the plate during applications. Easily pierceable with single or multi-channel pipettors and robotic probes Heat and 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