Tamper evident bag tape
Tamper Evident Duty Free Bag Tape
Security bag tape for duty free bags, protecting purchases through the airport and onward travel.
An intact seal shows the bag has not been opened, which supports security checks and gives passengers confidence in what they bought.
Tamper behaviour
What happens if the bag is opened
The tape adheres securely to the bag and cannot be removed without leaving a clear indication of tampering, such as a void message or a distinctive pattern.
01
Sealed at the till
The bag is sealed at the point of sale, quickly and without special equipment.
02
Interference attempted
Any attempt to open or reseal the bag separates the construction.
03
Evidence revealed
A void message or pattern appears, alerting airport security or customs to a potential breach.
Why duty free retailers use it
What the seal does
Deterrence
A visible security seal discourages attempts to tamper with the bag or to reseal it with substituted goods.
Faster checks
An intact seal simplifies verification, which helps expedite screening and reduces delays.
Passenger confidence
Travellers can see their purchases are sealed and protected in transit.
Secondary verification
Where a receipt is misplaced or damaged, the seal is a useful secondary check.
Protects delicate goods
Liquids, perfumes and similar items stay sealed and protected through the journey.
Branding options
Customisable with logos and branding to reinforce the retailer identity.
Security levels
Choosing the right level of security
Bag tape is available in layered security levels, so you can match the construction to the risk. Each level includes everything in the level below it.
Level 2 — Void and Void Cold
The base level. On removal the tape reveals a clear VOID message on the bag surface. Void Cold means the message also appears at cold temperatures.
Level 3 — adds thermochromic
A thermochromic layer changes colour when exposed to heat, which detects attempts to release the adhesive with heat, for example with a hairdryer.
Level 4 — adds security cuts
Pre scored lines weaken the tape at set points so it tears irregularly if someone attempts to remove it without breaking the seal.
Level 5 — adds hidden UV print
A hidden print, invisible to the naked eye and visible under UV light, which can carry logos, sequential numbers or other identifiers for covert authentication.
Level 6 — adds water fugitive ink
The most comprehensive construction available. A water fugitive ink layer dissolves on contact with water, showing tampering attempts involving water or other liquids.
Applications
Where duty free bag tape is used
Airport and airline retail
Sealing duty free purchases carried through the airport and onto the aircraft.
Duty free stores
Point of sale sealing with branded, tamper evident tape.
Onboard and inflight retail
Sealed bags handed to passengers in transit.
Travel retail concessions
Multi site retail operations that need a consistent sealed bag standard.
Application and integration
Sealing at the point of sale
Hand application
Applied by hand at the till, quick for staff and easy for passengers to check.
Bag film compatibility
Specified to the bag film so adhesion and void behaviour are reliable.
Sizes and strengths
Available in a range of sizes and strengths to suit different bags and packages.
Next step
Specify your duty free seal
Need samples or a quotation?
Tell us the bag, the film type and the volume and we will send samples and a quotation.
Not sure what will work on your pack?
Put it through the Security Lab. Send us the bag and the problem and our technical team will specify the seal with you.