PLA Heat Seal Film for Food Packaging Compostable 20-40μm High Clarity 1. Basic Information This PLA heat seal film is made from corn-based polylactic acid (PLA) through multi-layer co-extrusion or biaxial orientation. The film offers high transparency, good gloss, and excellent heat seal performance, suitable for food packaging, fresh produce wrapping, and paperboard window lamination. It is certified compostable to EN 13432 and ASTM D6400 and complies with FDA 21 CFR and EU