<img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=216539877280951&ev=PageView&noscript=1" /> When To Use a Light Proof Container for Packaging - Dymapak

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Light-proofing tends not to be a priority of all the barrier properties to consider when developing a packaging system. However, for certain industries, it’s a top concern, alongside moisture blocking and other forms of protection.

We don’t usually think of light as something to avoid or protect against. But in the world of manufacturing and shipping, all variables must be accounted for to minimize risk and keep products intact from the outside in.

This leads us to explore the role of light-proof containers in packaging and discover which materials are best suited for key applications.

What materials block UV rays most effectively, reflecting light or absorbing it efficiently without disruption? Do certain container types make for better light-proofing solutions, and which ones work best?

With this knowledge, you can select a packaging strategy that fits your needs and positions your products for success.


What Are the Best Light-Proof Containers for Packaging?

Light-proofing is a specific barrier property that certain industries deem crucial to the integrity and marketability of their products. Everything from food products to medications and mechanical components can be light-sensitive and require protection from the full spectrum of UV rays.

Perhaps the most universal light-proof containers are foil-sealed bags found in many beverage and snack packages. These materials effectively block light while maintaining a thin, malleable, lightweight form factor.

Thin metals such as tin and aluminum alloys are popular and layered laminate materials that create a unique end product with specialized properties.

Traditional paper and cardboard containers do a decent job at blocking light but do not provide the desired level of flexibility and user-friendliness as many foil packages.

We see mixed results in light-blocking barrier properties in the category of plastics and thin polymer films. Some colored plastics are more effective at blocking UV, while others let in far too much light to be viable for large-scale production with sensitive products.

As with all packaging projects, manufacturers are faced with a series of tradeoffs and risk/reward decisions when choosing materials and designs, weighing pros and cons such as barrier properties, strength, light-proofing, and more.


What Is a Foil Pouch or Mylar Bag?

As foil pouches become an increasingly popular light-proofing package solution, it’s worth looking at how these materials perform and possible alternatives.

Foil ismay be a favorite in the kitchen, as well as for food service, and certain basic packages. This is because of the Unfortunately, it doesn’t stand up to more versatile and inexpensive light-proof metallized filmsmaterials such as Mylar, which combines the best of thermoplastics with other elite barrier properties.

Originally called BoPET, shortened from biaxially-oriented polyethylene terephthalate, Mylarthe material quickly caught on in applications like insulation, protective coatings, solar filters, and even balloons. Before long, efficient production made it viable as packaging for manufacturers across industries.

Mylar is not only the more recent and advanced material of the two, but it also delivers a better look and feel in a final product, from food and pharma to specialized components and collectibles.


How Can I Use Mylar Bags?

The uses for Mylar bags are endless, given the high degree of customization that this material provides. Here are some of the most popular ways Mylar bags are used across the modern economy.



Nobody wants to be caught unprepared in today’s world, and Mylar allows for safe, light-proof storage with a low-profile and reasonable cost. Freeze-dried food, first-aid materials, and other perishable essentials can be kept safer for longer with Mylar bags, whether small or large.


Saving Valuable Items

Some of our most precious items are sensitive to light, such as collectible trading cards, stamps, postcards, photos, and even jewelry. Mylar allows you to store these items confidently, preserving their value (monetary, sentimental, or both) for the long haul.


Camping and Hiking

It’s you versus the elements when camping and hiking, and Mylar bags can help you protect your belongings when enduring the great outdoors. The lightweight materials are also ideal when trying to pack light.


Long-Term Storage for Herbs and Spices

Ingredients taste best when fresh, and Mylar lets you preserve those flavors for longer. Stock up on your favorite herbs from the store or harvest from your garden for sustainable spices.


Medical and Pharmaceutical Items

Most medicines have a shelf life, and active ingredients may lose effect after a certain duration. Mylar will not stop the inevitable, but it may extend the timeframe in which medicines and pharmaceuticals are safe and effective.


Packaging Auto Parts

Delicate auto parts must be handled with care when shipping to ensure a stable and effective installation. Mylar bags allow this to happen at scale and enable mechanics to work quickly upon receiving the correct parts.


Preventing Corrosion of Ferrous Objects

Oxidation is the main concern with objects containing iron, but exposure to light can quicken the process. By packaging these products in Mylar, producers avoid rust and related issues.


Storing CDs, Vinyl, and DVDs

Yes, people still use discs to experience media, and Mylar remains one of the best solutions for storage and shipping. Consider using this material to protect your media collections from light and oxidation.


Firearms and Weapons Storage

Keeping firearms functional and protected is simply good ownership. Maintain those best practices with custom Mylar containers that properly store firearms and weapons.


Holiday Storage

When families go on vacation, Mylar is there to keep everything safe and in order. These bags are lightweight and have all the protective properties you’d expect from top-tier luggage.



No matter how you travel, Mylar material gives you the edge. Dry bags, supply bags, and everything else – explore your options and get the custom solution for you.


Selecting the Right Light-Proof Container for Packaging

Aside from the many personal and industrial applications for Mylar products, it’s a clear-cut choice for packaging and containment solutions. Here’s what you should know to select the right one.


Determining Mylar Bag Quality

Since Mylar producers must meet certain quality standards, the material can be predictably strong and reliable. Therefore, your focus should be on the size, shape, color, and suitability of packaging products.

This means looking at factors like child-resistant designs, customizable dimensions, and other product-specific features that will make your products more successful on store shelves.


Mylar Bag Size Options

Always be specific with the exact dimensions you need when buying Mylar bags in bulk. This is how you ensure the correct amount of product for each unit and apply the necessary branding you need to stand out.


Vacuum Sealable Mylar Bags

To limit air exposure to food and medical items, use vacuum-sealable Mylar bags to prolong shelf life and deliver a more satisfactory product.


Reusable Mylar Bags

From snacks and toys to medicinal products, reusable Mylar is more accessible and affordable. Conscious consumers are more likely to buy from brands that take this approach to packaging.


When Is the Best Time To Use Mylar Bags for Packaging?

With the low cost and limitless potential of Mylar, this material is becoming a universal choice for packaging across major industries. Compare it to other leading materials and see how it meets your brand’s requirements.



Light-proof packaging and storage containers appeal for many reasons, from functionality and form to shelf appeal and user experience. Explore your options and determine the best material and container type that will improve your products across the board with Dymapak!



Light-Protective Packaging Materials for Foods and Beverages | ResearchGate

Definition, Properties, and Uses of Mylar | ThoughtCo.

7 Packaging Types to Consider | Packaging Strategies