The sealed trays in Solupack's Sealtray range have been carefully designed and developed to perfectly serve various market segments in the food industry, through a complete packaging system that includes trays, cover films and sealing equipment. This system is suitable for every market segment and business scale. In addition, the materials used in our trays have special properties and can work at different temperatures, both negative and positive, making them an excellent choice for ovens, microwaves, freezers and even deep-freezers. However, C-PET also has its own barrier layer, which can extend the shelf life of packaged products when combined with specific preconditions. Our trays use Solulid lidding film. Solulid is Solupack's lidding film, which has thermal resistance from -18 °C to 100 °C and withstands freezing and heating processes. As such, our films have high barrier properties, which can preserve packaged products for longer. It guarantees an airtight seal and the size perfectly matches the tray and the process used. Another way to use Sealtray sealed trays is in the ATM and SKIN processes.