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Business Source

Business Source 42121 Kraft Envelope 10 x 13 28 lb 250 Box

SKU CH-T01W-ZFYZB MPN 42121

Self-sealing Kraft envelopes measuring 10 by 13 inches, 28 lb stock, 250 per box

  • TypeBusiness Envelopes
  • Quick, clean sealing without moisture needed
  • Removable liner protects adhesive from dust
  • Sturdy 28 lb Kraft construction resists tearing
  • Generous 10 x 13 inch size fits documents
  • Bulk 250 count box reduces reorder frequency

Product identity

Business Source 42121 Kraft envelopes measure 10 by 13 inches and come in a 250-count box. The 28 lb paper stock suits everyday mailing of catalogues, brochures and multi-page documents. Buyers who need smaller letter-size envelopes or padded mailers will not find those formats here.

Installation and pitfalls

Each envelope has a self-seal adhesive strip covered by a removable paper liner. Pull the liner away and press the flap down to close without moistening. The liner keeps the adhesive clean until use. Humid storage can cause the flap to stick prematurely, and overstuffing may prevent a full seal.

Capacity and headroom

The box supplies 250 envelopes for high-volume mailing runs. The 10 x 13 inch dimensions accommodate standard catalogues and unfolded sheets. Heavier booklets or rigid inserts that exceed the 28 lb paper strength risk tearing the envelope seams during transit.

Highlights

  • Quick, clean sealing without moisture needed
  • Removable liner protects adhesive from dust
  • Sturdy 28 lb Kraft construction resists tearing
  • Generous 10 x 13 inch size fits documents
  • Bulk 250 count box reduces reorder frequency

Specifications

TypeBusiness Envelopes
BrandBusiness Source
Model42121
Shipping weight5.56 kg
Package size404 × 254 × 178 mm

Questions about this item

How can I verify the envelopes seal properly after pressing the flap closed?

Peel the removable paper liner from the adhesive strip, press the flap firmly, and confirm the seal holds without moistening; the liner keeps the adhesive dust-free until use.

What comes in the box and is anything else needed to use them?

The box contains 250 Kraft catalog envelopes measuring 10 by 13 inches at 28 lb weight; the self-seal adhesive is built in so no separate moistener or tape is required.

Which version should I choose if I need 10 by 13 inch Kraft envelopes with a self-seal closure?

Model 42121 is the 10 x 13 inch, 28 lb Kraft catalogue envelope with a self-seal adhesive strip and removable liner, supplied 250 per box.

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