Advise your clients how to properly stuff and seal their envelopes. (Make sure they don’t forget to stamp the Reply Envelopes!)
We recommend double sided tape, an adhesive glue runner, or a permanent glue stick to ensure a good seal on the envelope. Easy stick tape is available on Square flap envelopes for an additional .30 cents per envelope.
Using the incorrect amount of water can cause damage; too much and the gumline can be washed away, not enough, and the glue won’t stick consistently.
Make sure the flaps are pressed down firmly once the envelopes are sealed.