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Sign In Register Forgot User ID? Forgot Password?Windowless Envelopes
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Windowless envelopes feature a standard, solid design that does not permit viewing of contents until opened. They offer an additional level of security for important documents.
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Gummed Flap Windowless Envelopes
Gummed-flap windowless envelopes seal closed with water-soluble gum adhesive along the envelope flap. The adhesive on each envelope is activated by moisture, and offers a secure seal for important mailings.