Tamper-evident label stock material: Stock and custom security labels, UK manufactured

Protectaseal manufactures tamper-evident security label stock material for label converters. Available in a variety of colours and adhesives. No need for you to carry any inventory as we offer fast delivery from our manufacturing base in Devon, United Kingdom.

Assortment of tamper-evident label material rolls and substrates

Tamper-evident label stock materials for label converters

A tamper-evident label does one critical thing: it makes interference visible. When a product, component, or package has been opened, moved or tampered with, the label leaves irrefutable evidence — a VOID message on the surface, a destroyed substrate, or the complete absence of the label itself.

Our label stock materials range

Dry peel (Residue-transfer) labels

On removal, the complete label face transfers to the substrate, leaving an unmistakable VOID or security message. Cannot be removed intact or repositioned. Suitable for most packaging surfaces.

Red tamper-evident security label applied to a shipping crate
Low residue (Non-residue) labels

Tamper-evident security label on a cash box for banking applications

Ultra-destruct vinyl (Eggshell) labels

Material manufactured from an ultra-fragile vinyl substrate that fractures into fragments on removal. Permanent, unambiguous evidence of interference. For asset protection and high-security product sealing.

White tamper-evident void label applied to an HP office printer asset

Variable data security label material

Material printed with unique sequential serial numbers for product traceability, batch audit trails, and chain of custody documentation. Available with barcodes and QR codes.

Blue tamper-evident label with variable data serial numbering

Covert feature security material

Materials incorporating invisible ultraviolet ink features — text, logos, or unique identifiers — visible only under UV illumination. A covert authentication layer for high-threat brand protection or regularoty compliance.

Tamper-evident UV-reactive security label shown under ultraviolet illumination

Specification-grade regulated labels

Materials developed to exacting client specifications for pharmaceutical, aerospace, and defence applications. Custom compound, substrate, print specification, and security features.

Specification-grade tamper-evident security label for regulated industry applications

Permanent (Partial transfer) labels

On removal, a partial label face transfers to the substrate, leaving an unmistakable VOID message that cannot be remover intact, or repositioned. Ideal for use with internal security features.

Black tamper-evident void label on a yellow electrical equipment box

Stretch labels

This material has been developed for specific applications where a label does not have to be removed to show evidence of tampering. Ideal for permanent installations of assets.

Stretch tamper-evident label applied to a filing cabinet

Paper labels

Our eco-friendly paper label material range is available in Dry Peel or Low Residue adhesive options. Custom compound, substrate, print specification, and security features developed under NDA.

Tamper-evident security label applied to a DHL shipping box

Bespoke manufacturing capability

Nilpeter label printing machine at Protectaseal manufacturing facility in Tiverton Devon
Custom compounds

Custom adhesive compound development for extreme environments (temperature, chemical, and humidity resistance).

Substrate options

Substrate selection options across paper, polypropylene, polyethylene, polyester, and engineered security materials.

Custom printing

Full-colour custom printing including CMYK, Pantone match, and specialist security inks.

Multi-layer construction

Multi-layer options that provide overt and covert security features in a single label material.

Assortment of tamper-evident label materials and printed security labels

Where to find our tamper-evident label material

Protectaseal security label materials are available through our approved global distributor network. For custom specifications, direct technical enquiries, or to discuss a bespoke development requirement, contact our technical team.

Want to know more about our labels? We've got answers!

Four types of tamper-evident security labels showing residue transfer, non-residue, destructible and specification-grade options
What types of tamper-evident label materials are available?

We manufacture five main label material types: DRY PEEL (total transfer) label material that leaves a full VOID message on the surface, LOW RESIDUE (no residue) label material that leaves a VOID message on the surface of the label without leaving adhesive residue on the surface, PERMANENT (partial transfer) label material that leaves a partial VOID message on the surface, ULTRA DESTRUCT (destructible eggshell) label material that fragments on removal, and SPECIFICATION GRADE label material developed to bespoke client requirements

What is the difference between residue and no-residue labels?

Residue label material leaves a full or partial VOID message or adhesive pattern on the surface when removed — ideal for most security applications. No-residue label material voids irreversibly but leaves no adhesive residue on the surface, making it suitable for premium packaging where surface appearance and integrity must be preserved.

What is a destructible (eggshell) label material?

A destructible label material is manufactured from an ultra-fragile vinyl substrate that fractures into small fragments on any removal attempt. The label cannot be peeled off intact, providing permanent and unambiguous evidence of interference. It is commonly used for asset protection and high-security product sealing.

What are your Minimum Order Quantities?

We can offer as little as 500 linear metres of material and also offer a slitting service, provided that the full decal width is achieved.

What substrates can tamper-evident label material be applied to?

Our label materials are available on paper, polypropylene, polyester, and engineered security substrates. Adhesive compounds can be formulated for specific surface types and environmental conditions, including extreme temperatures, chemical exposure, and humidity. We can manufacture label material that will stick to just about any surface!

Do you hold custom label material specifications confidentially?

Yes, every bespoke label material specification is developed and manufactured exclusively for the client under an NDA. Custom designs, adhesive formulations, and security features are held in strict confidence and are not made available to any other party.

Is the label material easily over-printable?

Our label materials are extremely print-receptive, with many customers regularly printing with digital, flexo, offset, thermotransfer and UV Inkjet. We can also offer a bespoke surface coating option if required.