CUSTOM MYLAR BAGS

Mylar bags are made from BoPET, which stands for biaxially-oriented polyethylene terephthalate, often laminated with aluminum and polyethylene layers. Originally developed by DuPont in the 1950s, Mylar film became widely used for its exceptional barrier properties, including resistance to oxygen, moisture, UV light, and aroma leakage.

The outer polyester layer is what gives it printability and durability. The metallized or aluminum inner layer is what actually protects your product. Together, they create a flexible, lightweight pouch that keeps your product stable from production all the way to the end consumer.

Standard plastic bags let oxygen, moisture, and light through over time. Mylar is built differently. The laminated structure combines a polyethylene layer for sealing, an aluminum core that blocks oxygen and light, and an outer polyester layer that provides puncture resistance, achieving oxygen transmission rates far below what regular plastic bags offer. 

Here is what that means for your product:

• The metallized layer helps prevent both oxygen and moisture from entering the packaging, which helps maintain shelf life and product quality.
• It also blocks out light, which can cause products like coffee, tea, and some snacks to lose flavor or nutritional value over time.

The result is packaging that protects your product the way it needs to be protected, without overcomplicating your production or your budget.

Across industries like food, health, agriculture, and pet products, brands rely on Mylar bags to preserve freshness, protect product integrity, and stand out on the shelf. Here is where we see it used most often:

Coffee and Dry Beverages 

Boutique coffee brands choose Mylar for its oxygen protection and premium retail appeal. Once oxygen gets in, flavor follows it out. Mylar slows that process down significantly.

Snack Foods and Confections 

Texture and taste are everything. Mylar limits the air and humidity exposure that makes snacks go stale before they should.

Pet Food and Treats 

Pet products get opened and resealed again and again. Mylar keeps moisture and air out between uses, so the product stays fresh from the first scoop to the last.

Nutritional Powders and Supplements 

The metallized layer blocks UV light, which degrades nutrients, while the sealed barrier prevents humidity and oxygen from getting in. That matters a lot for products used gradually over weeks or months.

Dried Foods and Grains 

Mylar bags help extend the shelf life of grains, nuts, and dried fruits by blocking moisture, light, and air that cause them to go stale. 

We build Mylar bags in several formats depending on how your product is filled, sold, and used.

Stand-Up Pouches 

Stand-up pouches include a bottom gusset that helps the pouch stand upright on shelves, making them ideal for retail display and easy storage. These are one of the most popular formats for food, pet products, and supplements. They typically include a resealable zipper, tear notch, and hang hole.

Lay-Flat Pouches 

Lay-flat pouches are flat with no gusset, making them a great choice for smaller items, sample packs, and lightweight products. They are compact, efficient on the production line, and still deliver full Mylar barrier protection.

Roll Stock Film 

For brands running automated filling equipment, roll stock keeps your line moving consistently while maintaining the barrier performance your product needs.

Child-Resistant Pouches 

Child-resistant pouches are tested and certified by third-party agencies to meet federal test requirements, with CR-certified zippers that are significantly difficult for children under five to open while remaining easy for adults to use. A necessary format for certain regulated product categories.

Custom Mylar bags are not just functional, they are one of your best branding tools. The smooth surface of Mylar prints well and gives your packaging a premium look right out of the gate.

Finish options include matte, gloss, soft-touch lamination, embossing, debossing, metallic foiling, and holographic finishes, all of which can be incorporated across pouch types. The Customize Boxes

Whether you want a clean matte look, a high-gloss shelf presence, or a reflective metallic finish, we can build it into your pouch structure. Your logo, colors, and brand identity print sharp and consistent across every unit.

Mylar is a strong fit when your packaging needs to:

• Extend shelf life beyond what standard film can provide
• Block moisture, oxygen, and light
• Handle repeated open and close cycles without losing freshness
• Print with vibrant, shelf-ready graphics
• Stay lightweight and cost-efficient

Mylar delivers a reliable balance of barrier performance, efficiency, and cost control, allowing brands to protect sensitive products and extend shelf life without over-engineering the package. Admiralpkg

Whether you are launching a new product or improving existing packaging, we can help you build a Mylar bag that protects your product and represents your brand the right way.

Request a Quote or call us at 612-383-1960