Heat Seal Mylar Bags

Get Right Packaging Materials

Give your mylar bags a powerful defense system for long-term storage by choosing premium materials. Let these bags protect sensitive items from air, light, and moisture that spoil your perishable items with the following materials:

• Polyester Outer Layer: Acts as tough armor against punctures, tears, and external friction, just like child-resistant Mylar bags.
• Aluminum Foil Middle Layer: Forms an absolute fortress that blocks 100% of oxygen, moisture, and ultraviolet (UV) light.
• Polyethylene Inner Layer: Melts at a precise temperature to create a strong, molecular, leak-proof heat seal.

Provide Customers with Various Sizes

Offer different sizes to your customers so they can choose the product as per their needs. If you are packing edibles or dry fruits, offering more than one size will help your customers come back to your brand more often. Use smell-proof Mylar bags in different sizes when packing cannabis. Consider these different sizes for your heat sealed Mylar bags:

• 5” x 10”
• 12” x 6.9”
• 18.5” x 20”
• 22” x 25.5”
• 28” x 18”
• 30” x 20”

Here is a wide variety of sizes and structural formats  for Mylar ziplock bags to match everything from small retail samples to bulk long-term food storage, such as:

Create a Consistent Brand Identity in the Market

Choose customized colors and designs for your heat sealing Mylar bags to attract more customers. Stand apart from the competition in the market by choosing high-end designs and charming colors. Use color palettes based on your brand’s personality and the product you are packaging inside. Use foiling in different colors for your brand’s logo, such as red, blue, green, gold, and silver. Consult our professionals so you can get expert advice on which designs and colors will enhance the visibility of your Mylar bags. 

Choosing the Right Sealer

Selecting the correct sealing equipment for printed heat seal Mylar bags depends heavily on your production volume, material thickness, and whether you need to remove air before sealing. Always remember to choose a sealer with a jaw length longer than your widest bag to ensure a clean, complete seal.

Get Commercial-Grade Seal Width & Flawless Placement Matter

Proper seal placement needs sufficient headspace to ensure a flat, even bond, while keeping the seal area entirely clean prevents channels that cause leaks and odors. Here are some key factors to consider:

• Seal Width: Wider bands are more forgiving. A narrow seal has less bonded area, meaning a single small flaw can compromise the entire package.
• Placement: Leave enough clear headspace above the fill line. Sealing across smell proof Mylar bags bulging the fill line creates an uneven, weak bond.
• Cleanliness: Keep the seal area free of powder, oil, or stray grains. Contamination prevents layers from bonding, leaving a direct channel for leaks and odors (similar to how contamination allows smells to escape).

Two Ways to Test Seal Integrity

To ensure your seals are secure and contamination-free, use these two standard testing methods for resealable Mylar bags:

• The Squeeze Test: Gently press or squeeze the sealed bag to check for air escape. If the bag deflates or you hear a faint hiss under manual pressure, the polyethylene layers did not fuse continuously.
   
• The Visual / Peel Test: Inspect the cooled seal line for absolute clarity and uniformity. Then, try pulling the outer tabs apart firmly; a perfect bond will resist peeling completely, forcing the film itself to tear rather than the seam separating.

Prints That Boost Brand Recognition

Turn plain bags into a powerful branding and functional asset using professional printing options. Make your brand logo, colors, and typography pop using these premium and crisp options such as:

• Digital Printing
• Flexography
• Rotogravure Printing
• CMYK and PMS Printing

Finalize Visually Appealing Finishes

Let The Customize Boxes assist you in finding the perfect packaging finishes for your heat sealing Mylar bags. Choose one or more finishes for these Mylar bags for long-term storage to attract more customers to your products. Consider the following finishes, or explore more of the finishes, for your customized heat sealing Mylar bags:

Matte

Reduce the color vibrancy of your heat sealed Mylar bags and give them a subdued look with the matte finish. Choose this finish to keep the bags safe from fingerprint smudges. 

Gloss

Use the gloss finish to add a shiny protective layer around the Mylar bags. Enhance the color vibrancy and keep the bags safe from abrasions with this finish. 

Holographic 

When choosing monochrome for your heat seal Mylar bags, give the holographic finish a try. Give your bags a rainbow sheen and attract more customers. 

Embossing

Raise the texture of the visuals on your Mylar bags to give them a 3d appearance. Choose this finish on your brand’s logo for a more prominent look. 

How Are Heal Seal Bags Made?

• Heat polyethylene terephthalate (PET) until it melts.
• Stretch the molten plastic thin in two directions (biaxially oriented) to make it tough.
• Seal a vaporized layer of aluminum using a vacuum onto the plastic film to create the shiny, protective barrier.
• Add extra layers of plastic on the inside so the bag can melt and seal correctly when heated.
• Cut and form the large sheets of laminated film into individual pouches or bags.

Keep Your Products Safe from External Factors!

Choose custom heat sealing Mylar bags to keep different items safe from external factors. Retain moisture and the original aroma of the products within these bags. Customize the packaging to attract and retain more customers. Contact us today and get a free custom quote for your custom packaging needs.