Unique pressure sensitive sealing film is not tacky and will not stick to plates or gloves until you apply pressure. VIEWseal™ is highly transparent to enable precise optical measurement and has two perforated ends tab for easy positioning. Polyolefin with white polyester liner. Use with automated equipment and polypropylene, polystyrene, or polycarbonate plates. Adheres at temperatures from -70°C to +100°C. 100/pack. RNase/DNase free and non-pyrogenic.