At least some content in this article is derived from information featured in Fantastic Beasts and Where to Find Them (film). As such, spoilers will be present within the article.
A Sealant Charm was a spell that magically sealed envelopes. All applicants for wand permits in the United States were required by the Magical Congress of the United States of America to close the envelope in which they sent their applications back to the Wand Permit Office with this spell.
- Fantastic Beasts and Where to Find Them (film) (Mentioned on an envelope)