Self Seal Envelopes

(15 products)

PEEL & SEAL ADHESIVE STRIP — NO MOISTURE REQUIRED

Self-Seal Business Check & Window Envelopes

Fast, hassle-free peel-and-press self-seal envelopes featuring confidential security tinting, precision window placements for QuickBooks® checks, and long-lasting adhesive.

✔ Fast Peel-&-Press Self-Seal Strip ✔ Confidential Inside Security Tint ✔ Guaranteed QuickBooks® Alignment ✔ ⚡ Fast Shipping Nationwide

Shop Self-Seal Envelopes by Style

Select your required window configuration or envelope layout below.

QUICKBOOKS® CHECK FORMAT

Double Window Self-Seal

Shows return and payee addresses clearly while concealing check amounts and sensitive banking details.

Shop Double Window

INVOICES & STATEMENTS

Single Window Self-Seal

Ideal for business invoices, customer statements, and general business mailings requiring one window.

Shop Single Window

PRE-PRINTED LOGO

Custom Imprinted Self-Seal

Arrives pre-printed with your business return address and company logo for clean, professional mailings.

Shop Custom Imprinted

Self-Seal Adhesive & Security Specifications

Built for fast fulfillment, long shelf life, and total mailing privacy.

✔ Peel & Seal Adhesive Features

Protective Release Liner: Keeps adhesive fresh and prevents envelopes from sticking together in storage.
Instant Peel-and-Press Seal: Simply peel off the paper strip and press flat to permanently lock the flap.
Zero Moisture Required: Eliminates sponge moisteners, water cups, and messy tape.
Extended Shelf Life: Specialized pressure-sensitive glue stays tacky for years inside original packaging.

🔒 Security & Confidentiality Protections

Complex Blue Security Tint: Full interior pattern blocks readability when held up to bright light.
Heavyweight 24# White Wove Stock: Prevents tearing or show-through during postal transit.
Precision Window Positioning: Standard #8, #9, and #10 sizes align perfectly with QuickBooks® checks.
Tamper-Evident Fiber Tear: Attempting to peel open the sealed flap destroys the paper fibers.

100% Window Fit Guaranteed

Precision window placement aligns with QuickBooks® laser checks.

Confidential Security Tint

Interior security pattern hides check amounts and routing numbers.

Fast Peel-&-Press Seal

No water or licking required for fast, clean business mailing.

#9 Double Window Envelope (Self Seal)- 500 Qty

Regular price $107.95
Double Window Envelope (Self Seal) 4 1/8 x 9- 500 Qty

Regular price $107.95
#9 Single Window Envelope (Self-Seal)- 500 Qty

Regular price $107.95
#9 Double Window Envelope (Self Seal)- 500 Qty

Regular price $107.95
Double Window Envelope (Self Seal) 3 5/8 x 8 5/8- 500 Qty

Regular price $107.95
Double Window Envelope (Self Seal) 4 1/8 x 8 7/8- 500 Qty

Regular price $107.95
Double Window Envelope (Self Seal) 3 3/4 x 8 3/4- 500 Qty

Regular price $107.95
Double Window Envelope (Self Seal) 3 7/8 x 9 1/8- 500 Qty

Regular price $107.95
Double Window Envelope (Self Seal) 3 3/4 x 8 5/8- 500 Qty

Regular price $107.95
#9 Double Window Envelope (Self Seal)- 500 Qty

Regular price $101.15
#10 Double Window Envelope (Self Seal) - 500 Qty

Regular price $101.15
#9 Double Window Envelope (Self Seal) - 500 Qty

Regular price $107.95
Double Window Envelope (Self Seal) 3 5/8 x 8 7/8 - 500 Qty

Regular price $107.95
Double Window Envelope (Self Seal) 3 5/8 x 8 5/8 - 500 Qty

Regular price $101.15
Double Window Envelope (Self Seal) 3 7/8 x 8 7/8- 500 Qty

Regular price $107.95

QuickBooks Business Checks

Shop QuickBooks compatible business checks for business payments, payroll, accounts payable, and accounting software printing. Choose from multiple check styles, colors, and security levels.

QuickBooks Compatible Top Position Checks Multiple Security Levels Fast Processing

QuickBooks compatible business checks from Choice Checks