Mylar Bag Closure Options

There are more than just your traditional Ziplock options for mylar bag closure. Finding the right mylar bag closure can make all the difference in preserving your bag contents or dialing in the right look for your brand. The type of mylar bag closure you chose can also have an important regulatory impact on cannabis compliance laws.

Heat Seal

Heat-seal bag closures are the least complex and most cost-effective option. This closure type doesn’t use a zipper. Instead, it relies on a heat-sealing machine to crimp the end of the bag by combining heat and pressure.

To open the bag the user must rip open the top above the heat-sealed line. Most often utilizing tear notches on the edges. The only downside to heat-sealed bags is once they’re opened, they cannot be closed again.

This option is ideal for one-time-use items. However, depending on your location, it might not meet state and local laws.

Smell-Proof Zipper

Smell-proof zippers may be seen as a traditional ziplock option. However, with the inherited barrier properties of our mylar bags and traditional ziplock zippers, we can produce a fully smell-proof mylar bag solution.

While your contents are within this bag, they will not omit any odors as long as the bag remains sealed. However, these must be per state and local laws.

EZ Tear

Maintaining the properties of our smell-proof zipper, the EZ tear zipper features a tear-away option from the corner of the bag. This adds an extra layer of protection by making the bags tamper evident and confirming to the end user that they have never been opened.

While EZ tear zippers have been a popular option for coffee pouches, they’ve become more popular in the cannabis industry recently.

Child-Resistant Zipper

While there are a variety of child-resistant (CR) zippers on the market, our team at Custom 420 Supply has developed our own Se-Cure Seal Child Resistant zipper option. This zipper option is ASTM Child Resistant certified and provides an easier-to-open solution than many of the other CR zippers on the market.

These zippers are paramount in helping your company stay compliant with all state and local laws. They also maintain the properties of our smell-proof zipper while adding an extra layer of security and preventing access to children.

Bottom Heat Seal with Smell-Proof Top Zipper

A unique solution that combines our traditional smell-proof zipper and requires heat sealing the bottom of bags with no gusset.

This solution is ideal for companies with heat-sealing conveyor belt machines. It allows the company filling the Mylar bags to receive the smell-proof or CR zipper pre-sealed, then fill with the contents from the bottom opening and permanently heat seal the bottom opening.

The caveat is that once you heat-seal a bag, there is no option to open it from the bottom. Still, companies can save on labor costs by using this method combined with automated machines.

Final Word

Not sure what the best Mylar bag closure option is for you? Custom 420 is here to help! We invite you to reach out through our contact form to learn more.