So, what is a wafer seal and why do you need one?
If you've ever pulled a folded brochure or a colorful newsletter out of your mailbox and noticed a small, round sticker keeping the edges tucked together, you've already seen what is a wafer seal in person. It's one of those tiny, functional items that we interact with almost every day without ever really thinking about what they are or why they're there. But if you're suddenly in charge of a direct mail campaign or you're trying to ship out some DIY wedding invitations, these little circles become very important, very fast. ...