AVERY 51067 Closure Labels, transparent permanent adhesive, round 38 mm, 1 piece

Round closure label AVERY 51067 is a single transparent self-adhesive label with a permanent adhesive and a 38 mm diameter. Designed for discreet sealing of envelopes, packaging flaps and small closures, the transparent finish integrates with various surfaces while providing a long-lasting bond. The product is supplied as one ready-to-use sticker, suitable for manual application in home, office and small business environments.

Advantages

The transparent material gives a nearly invisible finish that preserves the appearance of paper or packaging beneath. Permanent adhesive ensures a secure and durable seal that resists casual opening. The 38 mm round shape is compact yet large enough for reliable closure of envelopes, small boxes and folded flaps. Supplied individually, the label is convenient for single-use sealing tasks without the need for a dispenser.

Suitable for

• Sealing envelopes for mailing, invitations and confidential documents
• Securing packaging flaps on small boxes or product samples
• Closing folded paper or cardstock for crafts and presentations
• Labeling or sealing in retail displays where discreet appearance is desired

When it may not be suitable

These labels are intended for smooth, clean surfaces such as paper, cardboard and some coated papers. They are not formulated for strong adhesion to oily, dusty, textured or irregular surfaces, nor for long-term outdoor exposure where UV and moisture may degrade the bond. For very large, heavy or industrial closures a larger or reinforced adhesive solution will be more appropriate.

Key specifications

• Shape: Round
• Diameter: 38 mm
• Material appearance: Transparent
• Adhesive type: Permanent pressure-sensitive adhesive
• Pack format: Single self-adhesive label

How to use

Ensure the surface is dry, clean and free of dust or oils before application. Peel the label carefully from its backing and align it over the flap or join to be sealed. Press the label firmly from the centre outwards to ensure full contact and remove any air pockets. Allow immediate handling after application, but avoid exposure to moisture or strong mechanical stress for the first 24 hours to achieve optimal adhesion.

What to consider before purchase

• Surface type: best results on clean, smooth paper and cardboard
• Application size: 38 mm diameter suitable for small closures only
• Environmental exposure: not recommended for prolonged outdoor use
• Quantity: supplied as a single label — buy multiple units if many seals are needed

Usage recommendations

For reliable sealing, store labels flat at room temperature and apply to surfaces that have been allowed to cool after printing or lamination. If sealing important documents or mail, press firmly and allow a short settling time before stacking or mailing.