Mylar Envelopes are flat, sealable foil mailers that protect documents, electronics, and moisture-sensitive goods from static, humidity, and light during shipping and storage. They suit electronics suppliers, labs, and fulfillment teams sending items that can't tolerate moisture or ESD exposure.
The foil laminate forms a moisture and light barrier, while a flat envelope shape slides easily into shipping mailers and filing systems. Use a heat-seal or peel-and-seal flap to close circuit boards, lab samples, or sensitive paperwork, then add desiccant inside for long-term storage without degradation.
Materials & Specifications
- Material: multi-layer mylar/foil laminate film
- Format: flat envelope with a sealable flap
- Printing: full-color CMYK with logo, lot, or handling marks
- Finishing: matte or gloss film, heat-seal or peel-and-seal closure, tear notch, hang hole
- Barrier: blocks moisture and light; static-control option
Best Used For
- Shipping circuit boards and ESD-sensitive electronics
- Storing lab samples and reagents that need a moisture barrier
- Mailing certificates, photos, and sensitive documents flat
- Long-term archival storage with desiccant packs
Printing & Finishing
Add full-color CMYK printing for branding and handling instructions. Choose matte or gloss film, a heat-seal flap for a permanent close or peel-and-seal for repeat access, plus a tear notch or hang hole as needed.
Why Order from Teal
We are a US-based custom packaging manufacturer. Standard minimum order is 50 units. Free design help and free US shipping are included, full-color CMYK printing is standard, and a 5-day rush is available against our 7-business-day standard. Order a free sample kit (just $19.99 shipping, credited to your first order).
FAQ
What's the minimum order quantity? The standard minimum is 50 units; the 100-unit floor only applies to specialty rigid packaging, not these envelopes.
How long is production? Standard production runs from about 7 business days, with a 5-day rush option.
Can I get a sample? Yes. Order the free sample kit for $19.99 shipping and we credit it to your first order.
Request a free quote and we'll get back to you within 4 business hours.
Mylar Envelope Sizes, Materials, and Common Questions
Mylar envelopes are flat, heat-sealable foil mailers built from multi-layer laminate that blocks light, static, and humidity. Standard sizes run from small 4 x 6 inch document sleeves to 12 x 15 inch mailers, and any dimension can be made to order at a 50-unit minimum.
What thickness should I choose?
For most shipping and storage uses, a 3 to 5 mil wall balances puncture resistance with a clean seal. Heavier contents or long-term storage favor thicker laminate, which we can quote by specification.
Are mylar envelopes static-shielding?
Foil laminate is designed to limit static and ESD exposure as a feature, though we do not certify ESD compliance. Share your contents and we will match the right construction.
Can I add resealable or custom-print options?
Yes. Resealable zippers, tear notches, and full-color print are available. Compare formats on our custom mylar bags and stand-up mylar pouches pages, or request a quote for a made-to-order size.
How to Order Mylar Envelopes
Ordering custom mylar envelopes is simple:
- Submit a quote request with your dimensions, quantity, and design references
- Receive quote guidance within one business day
- Send your artwork or work with our design team (free dieline + 2 revision rounds)
- Approve the digital proof and production begins
- Standard production runs from about 7 business days after proof approval; complex or high-volume orders take longer
