Gummed envelopes

Discover our Gummed Envelopes, featuring moisture-activated adhesive flaps for a secure, tamper-evident seal. Crafted from premium uncoated or kraft paper (80–120 g/m²), they’re perfect for formal mailings, invoices, cards, and legal documents. The classic gum seal provides a reliable bond that won’t lose tack over time. Available in C4, C5, DL, C6, and custom sizes, with window or non-window options. Bulk packs offer cost savings—shop now for professional, eco-friendly mailing solutions!