We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
White Tyvek booklet envelope box, 10 by 13 inches, expansion gusset, smooth finish, center seam, flap down, 100 count

WESTERN STATES

WESTERN STATES Tyvek Booklet Envelopes 10 x 13 18# White Box of 100

SKU CH-AZ6X-MWJQ4

Tyvek booklet envelopes measure 10 by 13 inches, resist water and bursting, and seal with a pressure-sensitive flap

  • Water and burst resistant Tyvek protects contents
  • Bright white smooth finish gives professional appearance
  • Pressure sensitive Kwik-Tak seal closes without moisture
  • Center seam construction adds strength for heavy documents
  • Box of 100 envelopes supplies high-volume mailing needs

What these envelopes are and who they serve

These 10 x 13 inch Tyvek booklet envelopes come in a box of 100 and use an 18# spun-bonded olefin construction. The open-side format with a centre seam suits offices that mail catalogues, reports or bulky documents without folding them. The bright white finish keeps printed addresses sharp and professional.

Moisture resistance and everyday handling

The material resists water and bursting so contents stay dry during transit or storage. A smooth surface feeds cleanly through most office printers and mailing equipment. Each box weighs 6.4 lbs, making it easy to lift and stack on a shelf without special handling gear.

Behaviour under sustained mailing volume

The pressure-sensitive Kwik-Tak flap seals quickly without moistening, which speeds up high-volume stuffing sessions. Expansion gussets to 2 inches accommodate thicker batches while the Tyvek fibres resist tearing even when envelopes are packed tightly. The centre seam maintains integrity through repeated automated sorting cycles.

Highlights

  • Water and burst resistant Tyvek protects contents
  • Bright white smooth finish gives professional appearance
  • Pressure sensitive Kwik-Tak seal closes without moisture
  • Center seam construction adds strength for heavy documents
  • Box of 100 envelopes supplies high-volume mailing needs

Specifications

BrandThe Envelope Supplies Shop

Questions about this item

How do I seal the Kwik-Tak pressure-sensitive flap on these 10 x 13 envelopes?

Peel the release liner from the flap, align the envelope edges, and press firmly along the entire adhesive strip to activate the bond.

Will the 18# Tyvek material degrade if stored long-term before use?

The spun bonded olefin resists moisture and tearing, so the envelopes remain stable in normal office storage conditions.

At what point does the 2-inch expansion gusset reach its limit during filling?

The gusset expands to a full 2 inches depth; overstuffing beyond that stresses the center seam and Kwik-Tak seal.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.