Tamper Evident Labels: VOID vs Destructible Label Constructions

A tamper-evident label is selected around the visible indication required after interference. It does not guarantee that access is prevented. Before comparing constructions, decide who will inspect the label, what they need to recognize and whether residue on the protected surface is acceptable.

That decision separates a useful application specification from a request for a generic “security sticker.” The substrate, opening geometry and time after application also belong in the selection brief.

Define the evidence you need

VOID or transfer-style constructions can provide a visible pattern associated with removal. The intended result may involve the surface, the label appearance or a combination, depending on the selected construction. Specify the desired outcome rather than assuming every VOID label behaves the same way.

Destructible constructions are selected where film fragmentation during removal is the intended indication. Review how visible and understandable that evidence needs to be in the actual installation. A small seal on a restricted surface deserves its own sample review.

The Tamper Evident Labels page provides the available construction paths. Confirm the exact removal behavior on the intended surface before approving a choice.

Evaluate the bonded surface

Record the substrate, coating, texture and condition when the label is applied. Include the available bonded area and any features that interrupt contact. A construction evaluated on one smooth sample should not be treated as approved for every enclosure finish.

Define the interval between application and possible opening. Review evidence after removal under realistic conditions, including the expected handling and environment before inspection. Keep the agreed application method with the sample evaluation so the result can be understood later.

Make the opening path part of the design

A seal placed across an opening seam should be reviewed on the assembled enclosure. Check which parts move during opening and whether the intended movement actually interacts with the seal. Consider access to the opening as well as the label’s location on the closed product.

Avoid selecting a large printed format first and then searching for somewhere to put it. Establish the usable seal area and removal path, then fit the required artwork to the location. For electronics assemblies, the Electronics & PCB page provides broader identification context.

Separate evidence from traceability

A serial number or code can associate a seal with an assembly or service record. It does not by itself establish the required removal evidence. Review the two outcomes separately: the physical indication of interference and the ability to identify the item or seal.

If a code is required, check its readability in the installed position and define the data responsibility. Also decide what information must remain available after the seal has been disturbed.

Approve the visible result

Use actual substrates and a representative opening or removal action. Review the appearance before and after interference, residue acceptability, code readability and the ease of recognizing the intended indication. Record the chosen construction and the conditions used for the review.

The Security & Tamper Evidence solution connects these decisions with technical selection. A useful initial inquiry includes a surface photo, seam or opening detail, available dimensions and a description of the evidence you want. BY Label Tech can discuss the construction options without requiring a finished specification at the outset.