Flip-Stik flaps have adhesive applied on two flaps and the flaps are separated until sealing. Simple Seal envelopes are an example of an envelope with a flip-stick flap. Check or order our Printed envelopes product page at this link https://www.4over4.com/printing/printed-envelopes
What is a Flip-Stik flap?
Written by Corey Thompson
Updated over a year ago