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
Box of 100 bright white 9 x 12 envelopes with smooth spun bonded olefin finish

WESTERN STATES

WESTERN STATES Open End Kwik-Tak Envelope 9 x 12 14# Bright White Box of 100

SKU CH-F654-4CT1E

Open-end envelopes with tamper-evident pressure-sensitive seals that read "Opened" when broken, moisture-resistant spun bonded olefin, box of 100

  • Tamper-evident seal shows "Opened" when broken
  • Pressure-sensitive closure needs no moisture to seal
  • Moisture-resistant spun bonded olefin protects contents
  • Bright white 14# stock gives professional appearance
  • Box of 100 envelopes for high-volume mailing

Secure Document Envelope 9 x 12

These 9 x 12 inch envelopes use bright white spun bonded olefin for tear-resistant strength. The 14# material resists moisture and provides a smooth finish. A centre seam construction adds durability for everyday mailing tasks. The pressure-sensitive Kwik-Tak seal closes instantly without moisture.

Offices Needing Tamper Evidence

Suited for offices that require visible proof if a mailed item has been opened. The flap displays "Opened" when the seal is broken, making it ideal for confidential paperwork or high-value contents. Not for buyers who need a window envelope to show an address, or those requiring larger formats for bulky catalogues.

Pressure-Sensitive Kwik-Tak Seal

The single specification that decides fit is the pressure-sensitive Kwik-Tak closure with tamper-evident wording. It seals on contact and permanently reveals tampering, removing the need for moistening or tape. Verify that a self-sealing, security-flap envelope matches your mailing workflow before ordering.

How it compares

Measured against everything we stock in Document Envelopes & Pouches, at today’s prices. Recalculated every night.

Price $130.99
Pricier than about 90% of the 638 comparable items (median $61.99).

Specifications

Product
Brand nameThe Envelope Supplies Shop

Questions about this item

Does the pressure-sensitive Kwik-Tak seal stay secure if the envelopes sit in a warm office all day?

The moisture-resistant spun bonded olefin material and pressure-sensitive adhesive are designed to maintain their bond under normal indoor conditions without reactivating or failing due to ambient heat.

Do I need any tape, glue or moistener to close these envelopes?

No extra supplies are required; each envelope has a built-in pressure-sensitive Kwik-Tak flap that seals firmly when pressed, and the tamper-evident design shows "Opened" if the seal is broken.

Will the 9 x 12 size and centre seam feed reliably through my older desktop laser printer?

The smooth-finish 14# olefin construction and centre-seam design allow the envelopes to pass through most standard laser printers without jamming, provided the printer accepts 9 x 12 media.

More in Document Envelopes & Pouches

Similar items