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

Business Source

Business Source 42115 Kraft Envelope 10x15 28 lb 250/Box

SKU CH-9MT0-TQ9B1 MPN 42115

Heavy-duty 10 by 15 inch kraft envelopes hold catalogs and documents securely with a 28 lb opaque build and moisture-activated gummed flap, 250 per box

  • TypeBusiness Envelopes
  • Heavy-duty 28 lb kraft protects contents during transit
  • Opaque material keeps documents private inside the envelope
  • Open-ended design allows quick insertion of catalogs or brochures
  • Moisture-activated gummed flap creates a secure seal
  • 250 envelopes per box supports high-volume mailing needs

Purpose & Audience

Business Source 42115 kraft envelopes are heavy-duty mailing supplies designed for offices and shippers sending documents, catalogs, brochures and promotional material. The 28 lb opaque construction keeps contents private during transit.

Upgrade Context

They replace lighter envelopes that tear easily or show contents through the paper. The jump is worth it when mail pieces must withstand handling and maintain confidentiality without extra inner packaging.

Build Fit

Open-ended style speeds up high-volume insertion and removal of flat items. Moisture-activated gummed flap seals securely without tape. Each box supplies 250 envelopes for extended mailing runs.

Highlights

  • Heavy-duty 28 lb kraft protects contents during transit
  • Opaque material keeps documents private inside the envelope
  • Open-ended design allows quick insertion of catalogs or brochures
  • Moisture-activated gummed flap creates a secure seal
  • 250 envelopes per box supports high-volume mailing needs

Specifications

TypeBusiness Envelopes
BrandBusiness Source
Shipping weight6.17 kg
Package size404 × 315 × 66 mm

Questions about this item

What size documents fit inside the 10 x 15 inch envelope?

The envelope measures 10 by 15 inches, so it accommodates flat documents up to that size such as catalogues, brochures or promotional sheets.

How do you seal the moisture-activated gummed flap correctly?

Moisten the adhesive strip evenly along the flap, fold it down and press firmly; the common mistake is using too little water, which leaves a weak seal.

When will the box of 250 envelopes need to be replaced?

The box contains 250 envelopes; reorder when your mailing volume uses the last few so you do not run out during a campaign.

Also in this aisle

People compared these

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