Tyvek® Gusseted Expander Envelopes DIN B4 - Pack of 100

Tyvek® Expander Gusset Envelopes DIN B4 – Ultimate Protection for Demanding Shipments

When security, discretion, and durability are paramount: The Tyvek® Expander Gusset Envelopes (Prod. No. 00011843) offer the perfect combination of extreme protection and an elegant appearance. Thanks to the innovative material structure made of high-density polyethylene fibers, these mailing envelopes are virtually indestructible. With their 3.8 cm wide side gusset, they flexibly adapt to voluminous contents such as reports, business reports, or heavy contracts.

The Tyvek® Revolution: Tear-resistant, Waterproof, Feather-light

Tyvek® looks and feels like paper, but possesses the technical properties of a high-performance fiber. While conventional envelopes tear under heavy loads or moisture, Tyvek® envelopes remain absolutely stable and reliably protect your documents from environmental influences.

• Extremely Tear-resistant: Protects against bursting during transport, even with heavy contents like catalogs or books.

• Absolutely Waterproof: Your correspondence arrives dry and undamaged, even in rain or snow.

• Minimal Self-weight: Despite its enormous strength, an envelope weighs only approx. 12.1 g – saving postage costs with every shipment.

Maximum Discretion and Easy Handling

The BONG Tyvek® Expanders are completely opaque, ensuring that confidential contents remain protected from prying eyes. The practical self-adhesive closure saves time in daily shipping: simply peel off the release liner, fold, and the shipment is permanently and securely sealed.

• Variable Volume: The 38 mm gusset offers space for thick stacks of documents, brochures, or light goods.

• Professional Appearance: The brilliant white and unique material feel immediately set your mail apart from the rest.

• Sustainable: The material is 100% recyclable, thus supporting environmentally conscious material management.

Technical Data & Specifications

Government Service & Public Administration

Due to their extreme security and durability, Tyvek® gusset envelopes are the standard medium for shipping sensitive documents, cadastral maps, and contracts in justice and administration. We support your professional procurement process:

• Secure Document Shipping: Ideal for legally relevant documents that must arrive undamaged.

• Postage Optimization: Maximum capacity with minimal weight helps to relieve the budget.

• Formal Quote in Checkout: Do you need a written quote for submission to commercial management? Simply select the "Formal Quote" option in the checkout area.

• Purchase on Account: As a specialized partner, we supply public authorities, chambers, and institutes with the usual official payment terms.

Trust the strongest protection for your business mail and order the Tyvek® Expander Gusset Envelopes directly here in the online shop!