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White vellum envelope with clear poly window, box of 500

WESTERN STATES

WESTERN STATES #10-1/2 Poly Window Envelopes 4-1/8" x 9-1/2" 24# White Box of 500

SKU CH-C460-D8MDT

White sulphite envelopes with a poly window, SFI certified, 92% brightness, vellum finish, side-seam construction, 24 lb stock, box of 500

  • SFI certified paper supports responsible forestry
  • 92% brightness ensures crisp document appearance
  • Vellum finish gives professional tactile feel
  • Side seam construction adds durability
  • Poly window protects contents while showing address

#10-1/2 Poly Window Envelopes

These #10-1/2 envelopes measure 4.125" x 9.5" and are made from 24# white sulphite paper with a vellum finish. The poly window sits 1-1/4" x 4-1/2" and is positioned 3/4" from the left and 1/2" from the bottom. They suit offices that mail standard letters with visible addresses.

Upgrade From Plain Envelopes

The integrated poly window removes the need to hand-write or label recipient details on the outside. This jump is worth it when you process high volumes of invoices or statements and want the address to show through automatically. The SFI certified 92% brightness stock also gives a cleaner look than uncertified alternatives.

Limits Of Remoistening Seal

The flap uses a remoistening seal that requires moisture to activate and may not hold if the envelope is overstuffed or exposed to humidity. Side seam construction keeps the front flat for printing but offers less expansion than centre-seam styles. Buyers who need peel-and-stick closure or heavy-insert capacity should look elsewhere.

Highlights

  • SFI certified paper supports responsible forestry
  • 92% brightness ensures crisp document appearance
  • Vellum finish gives professional tactile feel
  • Side seam construction adds durability
  • Poly window protects contents while showing address

Specifications

BrandThe Envelope Supplies Shop

Questions about this item

What are the envelope dimensions and paper weight?

The envelopes measure 4.125 x 9.5 inches and use 24# White Sulphite paper with a Vellum finish.

How do I seal these envelopes and what is the common mistake?

Moisten the remoistening seal on the flap-down closure; the frequent error is applying too little moisture, which prevents a secure bond.

When will I need to replace the box and how many cartons does a case hold?

A box contains 500 envelopes; a full carton holds 2500 envelopes across five boxes.

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