Custom mylar heat seal bags are manufactured from Mylar, an excellent polyester film, to safeguard various products from damage during storage and transportation. The heat seal feature offers a magnificent secure closure to extend the shelf life of products and prevent them from contamination. A heat gun is used to seal these bags to enhance product protection. The ideal bags to preserve the different products during storage and transportation for longer. The qualified and experienced packaging experts of Instant Custom Boxes create personalized bags in different thicknesses, sizes, and shapes to meet your product requirements.










01Send your size, material and quantity — we'll price it for you.
02Our designers prepare your dieline and a realistic 3D mockup — at no cost.
03Review and sign off on the exact colours and layout before anything prints.
04We print, finish and ship your order to your door with care.
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Sharon GaRodTrustindex verifies that the original source of the review is Google.
Very helpful assisting me on placing my order as well as patient on any question I had.Posted on Google![]()
Nathaniel RawlinsTrustindex verifies that the original source of the review is Google.
Easy communication and quick high quality deliveryPosted on Google![]()
John BaeTrustindex verifies that the original source of the review is Google.
My representative, Paul Millers, is an excellent source for advice in addition to some beautiful mailer boxes. We have placed at least two dozen orders for large quantity boxes and rarely, if ever, experienced any issues.Posted on Google![]()
Terry McGuireTrustindex verifies that the original source of the review is Google.
Chatting was very easy.Posted on Google![]()
Andrew ShortellTrustindex verifies that the original source of the review is Google.
Instant Custom Boxes are my go to resource for branded boxes. They are easy to work with, understand the projects and produce on time and with the highest quality. Would recommend to anyone looking for custom printed boxes.Posted on Google![]()
Emma LippincottTrustindex verifies that the original source of the review is Google.
ICB is the best printer I have worked with in my professional career. They had low minimums, plenty of options, and great quality. James was fantastic to work with; he always responded very quickly, looked over my files with great detail and kept me in the loop with every stage of the process. I worked with them remotely for this project, so having updates was great. Absolutely recommend ICB for your custom printing needs.Posted on Google![]()
Adonis NievesTrustindex verifies that the original source of the review is Google.
Excellent work.Posted on Google![]()
Samantha MillerTrustindex verifies that the original source of the review is Google.
Instant Custom Boxes provided great service for my company on two different occasions. They delivered high-quality cartons matching my specifications very quickly.Posted on Google![]()
Faith KraynikTrustindex verifies that the original source of the review is Google.
Contacted Instant Custom Boxes for a last minute box print need. They were super responsive, honest about their delivery timeline ability and ended up making a beautiful product that arrived faster than promised. Will definitely use this company for future box printing needs!Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Mylar Heat Seal Bags are a great way to package multiple items for mailing safely. Made of mylar film, these bags can stay flat and seal with a heat press at a high temperature without melting. While still heated, these bags can be folded and used as shopping bags. They are permanent, reusable food-safe heat sealed bags. Mylar (a non-porous polyester film) folds tight and doesn’t tear even after extended use.
Our professional packaging experts have crafted these top-quality heat-seal bags to enhance the protection of products while maintaining their freshness. Therefore, you can use these bags to preserve your products, such as weed and food, for a longer time.
We offer packaging bags in different types, such as lining to enhance the safety of products and gussets for space expansion to store products. Moreover, our packaging team also provides custom printing for product identification and business branding. These bags are available in different shapes and sizes to meet your brand requirements.
We create recyclable packaging bags made from durable and eco-friendly packaging materials. The purpose of creating these heat seal bags is to allow different businesses to reuse them whenever they need to package different products. It’s a fact that customers also prefer these sustainable bags to maintain an eco-friendly environment.
We always prefer top-quality materials such as kraft paper and Mylar to create durable packaging solutions for your brand. The sole purpose of using these materials is to contribute to an eco-friendly environment. Moreover, these are child-resistant packaging bags that can not be opened by children. Therefore, you can easily keep your products away from your children’s access.
Our Heat Seal Mylar Bags Wholesale is the most common and inexpensive packaging companies use. The bag’s strength and tear strength are due to its synthetic materials, which are designed to withstand great temperature variations, changes in humidity, and tensile stress. They can be used for food products, cosmetics, and chemicals. Mylar has a strong barrier to retain heat, Oxygen, and moisture. This pack can be used as a cooking bag to keep baked goods moist.
Heat Seal Mylar Packaging Bags at Instant Custom Boxes are a great alternative to plastic bags. They are reusable, biodegradable, and strong. They can keep frozen foods without melting them, are puncture and tearproof, and are reusable up to 50 times. A Mylar bag is a reusable, flexible film that provides excellent barrier properties. It is commonly used to keep food and other products fresh and prevent contamination (pesticides, bacteria, etc.) from entering the product.
They are also ideal for food storage and long-term storage of products that may be sensitive to air. Customized Eco-friendly Mylar Heat Seal Bags are made from recycled materials and are recyclable. The bags can be heat-sealed or cut by hand with scissors.
Heat seal mylar bags for cannabis are designed to withstand extreme heat, with double-layered strength that is more than twice that of a standard paper bag. Mylar bags are also resistant to frost, water, and even sunlight. The reflective Mylar allows cannabis bags to be seen from across the room, even in low light.
We manufacture these bags with a special high PTFE film that has excellent heat sealability and uses a sealant/printing method to produce a stronger, more durable seal. These bags provide a high barrier against moisture, pests, and trace contaminants while maintaining excellent strength. These bags are available in a wide range of sizes; the most popular are standard ones, but you can customize them according to your product size. They are ideal for food storage and secure freezing while ensuring that your food’s freshness will remain unchanged.
| Box Style | Mylar Heat Seal Bags |
| Brand | Instant Custom Boxes |
| Dimension (L + W + H) | All Custom Sizes & Shapes |
| Quantities | No Minimum Order Required |
| Paper Stock | 10pt to 28pt (60lb to 400lb) Eco-Friendly Kraft, E-flute Corrugated, Bux Board, Cardstock |
| Printing | No Printing, CMYK, CMYK + 1 PMS color, CMYK + 2 PMS colors |
| Finishing | Gloss Lamination, Matte Lamination, Gloss AQ, Gloss UV, Matte UV, Spot UV, Embossing, Foiling |
| Included Options | Die Cutting, Gluing, Scored, Perforation |
| Additional Options | Eco-Friendly, Recycled Boxes, Biodegradable |
| Proof | Flat View, 3D Mock-up, Physical Sampling (On request) |
| Turnaround | 4 - 8 Business Days, RUSH |
| Shipping | FLAT |