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For label converters and printers

Tamper evident master rolls for label converters

TamperTech supplies tamper evident master rolls to label converters and label manufacturers. You convert, print and sell. We supply the material: permanent, non-residue, Hybrid (rub-off) and paper constructions, with bespoke VOID messages, hidden inks and a range of colours. Usable widths are 110mm, 240mm and 320mm, in rolls of 200m to 750m. We ship worldwide. Tamper evident material is designed to reveal interference. It does not stop a pack being opened.

Not sure which construction fits? Send us the application.

Tamper-evident VOID labelstock master roll running on a label converting press at TamperTech
23+ years

Solving tamper-evident applications

Printed and coated in the UK

At our site in Ashbourne, Derbyshire

ISO 9001 and ISO 45001

Certified management systems

Worldwide supply

European distribution hub in Poland

At a glance

Tamper evident void label stock master rolls at a glance

ProductTamper-evident VOID labelstock in master (jumbo) rolls, ready to convert
ConstructionsPermanent · Non-residue · Hybrid (rub-off) · Paper
FacestocksPET · BOPP · Plastic-free paper
AdhesivesPermanent · Freezer-grade
MessagesStandard VOID or a fully custom message, logo or pattern
Extra securityHidden and covert inks · Range of face colours
Usable widths110mm · 240mm · 320mm
Lengths200m to 750m per roll
LinerGlassine
SupplyWorldwide · Invoiced in GBP, EUR or USD

Why converters use it

Converters add tamper evident labels to their range without developing the material themselves. You keep the customer. We make the material and support you with technical advice, by phone or in person.

How it is made

We print, adhesive-coat and laminate the rolls at our site in Ashbourne, Derbyshire, from films, paper, inks and adhesives that we buy in.

What it does not do: Master rolls are material, not finished labels. Converting, die-cutting and finishing are done by you. Performance on your press and your customer’s surface should be confirmed with samples.

Case study: a distributor in Peru

A distributor in Peru supplies localised, custom-language security products to its own customers. It brought converting in-house, which shortened its lead times, and it now supplies high-security labels with UV-ink security to the pet pharmaceutical sector.

Choose your route

Start from what you need

Standard VOID constructions

You need tamper-evident labelstock with a standard VOID or OPENED message, ready for your press.

A custom message for your customer

Your customer wants their own words, logo or pattern revealed when the label is removed.

Not sure which construction fits

Tell us the surface, the conditions and who checks the seal. Our technical team will specify it with you.

Bespoke tamper evidence

Generic VOID can be bought by anyone. Your customer's brand can't.

Standard VOID labelstock is widely available, which makes generic VOID labels easy for counterfeiters and tamperers to source. A seal that reveals a brand's own message, logo or pattern when it is removed is a different matter. It helps show the seal is genuine as well as showing that it has been opened.

We build that bespoke message into the activation layer of the master material. You print, die-cut and finish it exactly as you would any other labelstock. Your customer gets security that is unique to them, and you get a higher-value product that is not available from a catalogue, with repeat runs that come back to you.

Brand-unique messages

words, logos or patterns in the activation layer, in any language

Hidden security

covert and hidden inks for an extra layer of authentication

Colour choice

a range of face colours to match brand or category coding

See more bespoke options →

Tamper behaviour

Choose your construction

Every construction is designed to leave visible evidence when the label is lifted. The difference is where that evidence appears, and whether the surface can be used again.

Non-residue

The message appears in the label face when it is lifted, and no residue is left on the surface. Ideal where surfaces must stay clean, such as airline catering trolleys and equipment.

Permanent

The message transfers in full to the surface, so the evidence stays even after the label is removed. Ideal for cartons, delivery bags and pharmaceutical and logistics seals.

Developed by TamperTech

Hybrid (rub-off) (reusable packaging)

The full message transfers to the surface, giving the same clear evidence as permanent. Once checked, the residue can be rubbed off so the bag, tote, crate or trolley can be used again. Permanent-style evidence without throwing the packaging away.

ConstructionNon-residuePermanentHybrid (rub-off)
Where the evidence showsIn the label faceOn the surface and in the labelOn the surface and in the label
Residue on the surfaceNoneYes, permanentYes, until rubbed off after checking
Surface can be reusedYesNoYes
Best forTrolleys, equipment and clean surfacesCartons, delivery bags, pharma and logistics sealsReusable bags, totes, crates and trolleys
FacestocksPET · BOPP · PaperPET · BOPP · PaperPET · BOPP · Paper

Non-residue

Where the evidence shows
In the label face
Residue on the surface
None
Surface can be reused
Yes
Best for
Trolleys, equipment and clean surfaces
Facestocks
PET · BOPP · Paper

Permanent

Where the evidence shows
On the surface and in the label
Residue on the surface
Yes, permanent
Surface can be reused
No
Best for
Cartons, delivery bags, pharma and logistics seals
Facestocks
PET · BOPP · Paper

Hybrid (rub-off)

Where the evidence shows
On the surface and in the label
Residue on the surface
Yes, until rubbed off after checking
Surface can be reused
Yes
Best for
Reusable bags, totes, crates and trolleys
Facestocks
PET · BOPP · Paper

Paper-based tamper evidence

Plastic-free paper labelstock

Our paper tamper-evident laminate is made on plastic free paper, for brands and retailers moving away from plastic seals. It is available in permanent, non-residue and Hybrid (rub-off) constructions, with the same bespoke messages as our film range.

Customers reviewing packaging for the EU Packaging and Packaging Waste Regulation can find more on our PPWR & packaging compliance page.

Construction and specification

Roll specification and options

Usable widths110mm · 240mm · 320mm
Supplied widths120mm · 250mm · 330mm (10mm wider for a clean edge trim)
Roll lengths200m to 750m per roll
FacestocksPET · BOPP · Plastic-free paper
ConstructionsPermanent · Non-residue · Hybrid (rub-off) · Paper
AdhesivesPermanent · Freezer-grade
LinerGlassine
MessagesStandard VOID or OPENED, or a fully custom message, logo or pattern
Security optionsHidden and covert inks · Face colours
Core, quantities and lead timeConfirmed with your quotation. Tell us your press on the form below.

Other widths and lengths on request.

How it works

From your customer's idea to converter-ready rolls

01

Brief us

Tell us the construction, facestock and width, and send your customer's message or logo.

02

Artwork and trial rolls

We create the activation artwork and send trial rolls for print and conversion trials on your press.

03

Approve

You test, your customer signs off the message, and we confirm the production specification.

04

Delivered to your door

Production rolls arrive slit to width on glassine liner, shipped worldwide.

05

Convert and supply

You print, die-cut and finish in house, then deliver to your customer.

Blue tamper-evident VOID labelstock master roll being converted on a label press

Applications

Where your customers will use it

Converted tamper-evident labels in several colours made from TamperTech VOID labelstock master rolls

Food and retail delivery

Paper seals for paper delivery bags.

Airline catering

Non-residue paper labels replacing plastic on catering trolleys.

Logistics, 3PL and 4PL

Tote, crate and carton seals for hand or automatic application.

Pharmaceutical

Seals for cartons, totes and controlled shipments.

Cosmetics and brand protection

Custom messages for high-value and counterfeit-prone goods.

E-commerce returns

Seals that show whether a returned item has been opened.

Why TamperTech

Why converters choose TamperTech

  • We manufacture tamper-evident materials supplied to international labelstock brands. Buy direct from the source.
  • Consistent activation and adhesive chemistry, roll after roll, because we print, adhesive-coat and laminate it ourselves in the UK, from films, paper, inks and adhesives we buy in.
  • Bespoke messages are our speciality, not a special-order afterthought.
  • Rolls of 200m to 750m, so you can trial a construction or run a custom message without tying up stock.
  • Plastic-free paper as well as PET and BOPP, for customers reducing plastic.
  • Technical support from our Security Lab when an application is difficult.
  • Shipped worldwide, with a European distribution hub in Poland.
  • Invoiced in GBP, EUR or USD.
Accreditations & certifications →

Selection, testing and limits

Choosing a construction, testing it and what it does not prove

All three constructions show tampering, but they suit different surfaces and different checks. Start from the surface the label goes on and whether that surface needs to be reused.

Match the construction to the surface

  • Clean surface that must be reused: non-residue.
  • Single-use pack where the evidence must stay on the pack: permanent.
  • Reusable pack where the evidence must stay on the pack until checked: Hybrid (rub-off).
  • Plastic reduction is a requirement: specify the paper facestock.

When master rolls are not the right route

What to test before you commit

  • Print on your own press with your inks, drying or curing settings and line speed.
  • Die-cut and strip the waste matrix at production speed.
  • Apply to your customer's real surface and allow the dwell time their process actually gives.
  • Attempt removal in real conditions: cold, warm, damp and after handling.
  • Check the custom message reads clearly against the print and the surface colour.

What tamper evidence does not prove

  • A voided label shows the seal was disturbed. It does not say what changed inside the pack.
  • A sealed pack does not certify contents or condition; goods-in checks still do that.
  • Tamper-evident labels are not tamper-proof. The aim is a signal that is difficult to undo quietly.

Need finished labels? Explore our Permanent Labels, Non-Residue Labels and Paper Non-Residue VOID Labels.

Terminology

Labelstock terms explained

Master roll / jumbo roll / laminate rollWide rolls of unconverted material for printing, die-cutting and slitting into finished labels or tapes.
Converter-readySlit to width and wound on glassine liner, ready to print and die-cut.
FacestockThe top printable layer of the label (PET, BOPP or paper).
VOID labelstockTamper-evident material that reveals a hidden message when the label is removed.
Non-residue VOIDThe message shows in the label face; nothing is left on the surface.
Permanent VOIDThe full message transfers to the surface as visible residue.
Hybrid (rub-off)A TamperTech construction where the full message transfers to the surface, and the residue can be rubbed off after checking so the packaging can be reused.
Custom message VOIDA VOID pattern replaced with a brand's own words, logo or pattern.

Searching for anti-tamper or tamper-proof label material? It is the same requirement. See tamper evident vs tamper proof.

Questions

Master roll and VOID labelstock FAQs

What is tamper-evident VOID labelstock?

Label material with a hidden tamper-evident layer. When a label made from it is lifted, a message such as VOID appears and is designed to stay visible. We supply it in master rolls for converters to print, die-cut and finish.

What is the difference between non-residue and permanent VOID?

Non-residue VOID shows the message in the label face and leaves the surface clean. Permanent VOID leaves the full message on the surface, so the evidence remains after the label has been removed.

Can the residue be removed so packaging can be reused?

Yes, with our Hybrid (rub-off) construction. It gives the same visible evidence as permanent, and the residue can then be rubbed off so bags, totes, crates and trolleys can go back into use.

Can you put my customer's logo or message into the VOID pattern?

Yes. Custom messages, logos and patterns are our speciality. Send us the brand and the idea and we will create the artwork and supply trial rolls for approval.

Can I get paper instead of plastic?

Yes. Our paper tamper-evident laminate is made on plastic free paper and available in permanent, non-residue and Hybrid (rub-off) constructions.

What widths and lengths are available?

Usable widths are 110mm, 240mm and 320mm, supplied as 120mm, 250mm and 330mm, in rolls of 200m to 750m.

Which print processes can I use?

Tell us your press and print process on the form and we will recommend the right construction. We always advise a print and conversion trial on your own press before production.

Do you supply sample rolls for converting trials?

Yes. Ask through the form below and we will send sample rolls for print and conversion trials.

Do you ship outside the UK?

Yes. We ship worldwide, have a European distribution hub in Poland, and invoice in GBP, EUR or USD.

Do you also sell finished tamper-evident labels?

Yes. If you need finished labels rather than material to convert, see our custom tamper evident labels.

Can the VOID message be changed?

Yes. We make bespoke VOID messages, and the colour can be chosen from a range.

Who makes the material?

We print, adhesive-coat and laminate at our site in Ashbourne, Derbyshire. Films, paper, inks and adhesives are bought in.

How do we get started?

Request a sample and tell us your press, the surface your customer’s pack presents and the construction you need.

Next step

Specify your master rolls

Need trial rolls or a quotation?

Tell us the construction, width and volume, and whether your customer needs a custom message. We will send trial rolls and a quotation.

Not sure what will work on the pack?

Put it through the Security Lab. Send us the pack and the problem and our technical team will specify the construction with you.

Request sample rolls or a quote

What happens next

  1. We read it ourselves: a technical person, not a sales queue.
  2. We recommend the construction and send trial rolls for your press.
  3. We quote production rolls shipped worldwide.

Whether you need technical advice, product information, quotes or support, our team is here to help.

Talk to Our Team

Get in touch today

📍 Address: Tamper Technologies Ltd,
The Oaks, Moor Farm Road West,
Airfield Industrial Estate,
Ashbourne, Derbyshire,
DE6 1HD, United Kingdom.


📞 Phone +44 (0) 1335 300335


💬 WhatsApp +44 (0) 7528 477703

✉️ Email sales@tampertech.com 

Reviewed by the TamperTech technical team · October 2026