MPET Bags

Metallized Polyester (MPET) bags are made by laminating a thin layer of metal (usually aluminium) onto polyester film, often with a PE inner layer for sealing. These bags provide moderate to high barrier protection against light, vapor, and gases, making them suitable for materials that require shielding from environmental exposure without the need for full foil laminates.

MPET bags are widely used in pharmaceutical, food, electronics, and industrial applications where product stability and visual appeal are important. They are lighter and more cost-effective than foil bags, while still offering a reflective barrier surface.