Why choose sealing wax as a seals for wedding invitation or thanks card envelopes? Expressing Individuality: In modern times, using wax seals is a way to show individuality and taste. People can choose their favorite wax colors, patterns and seals to create a unique sealing effect that reflects their personal style. For example, some handmade shops use unique wax seals to package their products, which not only protects the products, but also shows the unique style of the brand.