Mylar Bags Manufacturer

“Mylar” is a trade name for a specific type of polyester film (PET). When we talk about Mylar bags, we’re referring to multi-layer packaging where one of the key layers is metallized PET (VMPET). This ultra-thin layer of aluminum deposited onto the PET film is what creates the signature silver appearance and, more importantly, provides the exceptional barrier against light, oxygen, and moisture.

Both offer excellent barrier properties, but with key differences. A **Mylar (VMPET)** bag has a micro-thin layer of aluminum, offering a great balance of protection, flexibility, and cost-effectiveness. A pure **Aluminum Foil (AL)** bag contains a much thicker, solid sheet of foil. It provides the absolute highest barrier possible but is generally stiffer and more expensive. For most applications, Mylar offers more than enough protection.

Yes, their smell-proof quality is one of their greatest strengths. The same scientific principle that prevents oxygen molecules from passing through the material also applies to the aromatic compounds that create scents. When properly heat-sealed, our Mylar bags create an airtight containment that effectively locks all odors inside, ensuring your product remains discreet.

For the best possible seal, a heat sealer is required. You don’t need an expensive industrial machine; a simple “impulse sealer” is perfect. For long-term storage, first press out as much air as possible, then seal the opening with the heat sealer. For ultimate preservation, you can also add an “oxygen absorber” packet into the bag just before sealing. This will remove the residual oxygen inside.