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White #10 business envelope with poly window side seam vellum finish box of 500

WESTERN STATES

WESTERN STATES #10 Poly Window Envelope 4.125 x 9.5 24# White Side Seam Wesco Tint Box 500

SKU CH-KQW9-51YEG

#10 business envelopes hold standard letters with a poly window, 24 lb white sulphite paper, 92 % brightness, side seams and black Wesco tint, 500 per box

  • Standard #10 size fits common business correspondence
  • Poly window shows recipient address without extra printing
  • 24 lb white sulphite stock gives crisp professional feel
  • 92 % brightness ensures clean print contrast
  • Black Wesco inside tint blocks document contents from view

Standard #10 Business Envelope

These #10 poly window envelopes measure 4.125 x 9.5 inches and use 24 lb white sulphite paper with a vellum finish. They are designed for everyday business mailing such as invoices, statements and letters. The side seam construction and remoistening seal provide reliable closure for high-volume runs. SFI certification confirms the paper comes from responsibly managed forests.

Security Tint and Window Placement

A black Wesco inside tint blocks visibility of enclosed documents without adding bulk. The poly window measures 1-1/8 x 4-3/4 inches and sits 3/4 inch from the left edge and 1/2 inch from the bottom. This layout aligns with standard address blocks so the recipient shows through clearly. The window film protects the address from smudging during handling.

Box Quantity for Volume Mailing

Each box contains 500 envelopes, and a full carton holds 2500 units for larger campaigns. This quantity suits offices that process regular monthly batches. Buyers who need smaller packs or custom printed branding will need a different SKU. The bulk count reduces reorder frequency for steady mailing schedules.

Highlights

  • Standard #10 size fits common business correspondence
  • Poly window shows recipient address without extra printing
  • 24 lb white sulphite stock gives crisp professional feel
  • 92 % brightness ensures clean print contrast
  • Black Wesco inside tint blocks document contents from view

Specifications

BrandThe Envelope Supplies Shop

Questions about this item

How often will the remoistening seal need replacing?

The remoistening seal is integral to each envelope and activates with moisture when you close the flap; it is single-use and replaced by using a new envelope from the box of 500.

What limits how many envelopes can be run through a mailing machine continuously?

The machine hopper capacity and paper-path design set the practical limit; each box supplies 500 envelopes and a carton holds 2500 for high-volume runs.

How much heat does the poly window generate during all-day printing?

The poly window is a passive film; it adds no heat during printing, and the 24# white sulphite paper with vellum finish handles standard laser or inkjet fuser temperatures without issue.

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