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Custom Rigid Envelopes

These Rigid Mailing Envelopes are designed to prevent bending and creasing during transit. Built with high stiffness paperboard ranging from, they provide a rigid, protective barrier for flat items. Whether you are shipping certificates, photos, or art prints, these envelopes maintain their structural integrity to ensure contents arrive flat.

Custom Specifications for Your Branding Requirements

Your brand deserves packaging that is as unique as your products. We provide full-scale customization for your mailers, from material thickness and surface treatments to edge-to-edge CMYK branding. Whether you require specific load-bearing capacity or bespoke aesthetic finishes, our technical team ensures every detail aligns with your operational requirements.

Product Name

Custom Rigid Envelopes

Sustainability Standard (Natural Kraft): 100% Biodegradable & Recyclable
Upgrade (Waterproof Coated): Recyclable
Material Kraft Paper, White Cardstock, Duplex Board with Gray Back
Standard Sizes #1(6 x 6 inch), to #13(16 x 18 inch)
#1(15 x 15 cm), to #13( 40 x 46 cm)
Custom sizes available upon request
Thickness 250gsm – 700gsm (12pt – 40pt), (Multiple Options Available)
Closure Ultra-Strong Self Seal Adhesive (Tamper-Evident)
Paper Color Natural brown, White
Surface Treatment Standard: Natural Uncoated (Breathable)
Option: Waterproof Coated
Printing Options Custom Logo Printing, Full-Color CMYK Edge-to-Edge Printing
Sample Policy Free stock samples available; Customized samples supported
Lead Time Samples & Small Batches: Approx 1 week
Bulk Orders: Approx. 2–3 weeks

 

FAQ about Custom Rigid Envelopes

 

1. Do rigid mailers effectively protect products during shipping?
Yes. Our mailers feature robust paperboard construction ranging from 250gsm to 700gsm, providing exceptional stiffness to resist physical bending. Crafted from high-strength kraft material, these stay-flat mailers offer superior tear resistance, ensuring your items remain protected throughout the mailing process.

2. What should I ship in rigid cardboard envelopes?
These envelopes are best suited for flat, non-fragile items that must remain uncreased. They are perfect as rigid mailers for art prints, professional photos, and important documents. Note: If you are shipping highly fragile items like glass or liquids, we recommend using our padded mailers or corrugated boxes for additional impact protection.

3. Are these rigid envelopes waterproof?
Standard kraft rigid envelopes are paper-based and not waterproof. However, we offer an upgraded laminated finish to provide extra protection against rain and humidity, making them ideal for areas with wet climates.
Pro-tip: For complete moisture protection, you can pair our envelopes with an outer PE poly bag to ensure your goods stay dry even in severe weather.

4.What is the MOQ for bulk Paperboard Mailers orders?
Custom Logo Printing: Minimum 100 units.
Custom Size & Full-Color Printing: Minimum 1,000 units.
Laminated/Premium Finish Envelopes: Minimum 5,000 units.

5. How do the closure and opening features work? Are they tamper-evident?
Each envelope features an industrial-strength self-seal adhesive that creates a permanent bond. This closure is tamper-evident, ensuring the envelope cannot be opened without leaving visible damage. For the recipient, we incorporate an integrated Kraft paperboard envelopes tear strip; this allows for a clean, quick opening without the risk of cutting into the inner contents.

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