The positive seals of the PlateSeal tape (616-360-06) and SilverSeal (616-360-02) prevent evaporative sample loss during cycling. Suitable for cold storage with a temperature range of -80 to 125°C. The PlateSeal tape has a 2 mil thick polypropylene film and a functional temperature range of -40°C to 125°C. The SilverSeal tape has an aluminum film and a functional temperature range of -70°C to 110°C. Both tapes have two end-tabs for accurate positioning of the film to the plate.