Stock VOID tape
Standard tamper-evident tape with VOID or OPEN VOID message on removal. Available in a range of widths, roll lengths, and colours. Suitable for documentation, forensics, medical, and cash-in-transit applications.
Protectaseal manufactures tamper-evident bag tape to your exact specification — from standard VOID mechanism tape to fully bespoke formulations with custom printing, and covert and overt security features.


Our tamper-evident bag tapes are engineered to provide immediate, irrefutable evidence of interference. When the tape is removed or disturbed, a clear VOID or custom security message is revealed on the substrate — impossible to disguise, impossible to replace without detection.
Unlike bag tape sold by distributors, our bag tape is manufactured in-house in the United Kingdom. That means we control the adhesive compound, the substrate specification, the print quality, and the security mechanism — and we hold your custom specification in strict confidence.
Standard tamper-evident tape with VOID or OPEN VOID message on removal. Available in a range of widths, roll lengths, and colours. Suitable for documentation, forensics, medical, and cash-in-transit applications.
Bespoke bag tape printed with your brand, logo, security message, or unique identifier. Manufactured to your colour specification. MOQ and lead time on application. Ideal for branded packaging, cash-in-transit, and product authentication.
Bag tape incorporating ultraviolet ink features that are invisible to the naked eye and only visible under UV illumination. Used as a covert authentication layer in high-security applications.
Bag tape incorporating a unique identifier that is invisible to the naked eye. It provides machine readability that can be used for process control, content verification, and ongoing protection.
Since each end-user of bag tape has a specific requirement, we prefer not to use the commonly used generic Level 1 to 6 grading system for tamper-evident bag tapes. Our Supreme Bag Tape is manufactured to your unique requirements to achieve the exact end result you require.

In-house manufactured adhesive compounds include both acrylic and hot melt derivatives. Any adhesive specification developed in conjunction with yourself is not available to competitors.
Custom VOID messaging — your brand, your security message. .
Multiple substrate options to suit your conversion process.
Bespoke width and roll lengths — manufactured to your operational requirements, not standard catalogue sizes.
These include unique identifiers, thermochromic inks, internal security cuts, water-soluble inks, UV-reactive inks, authentication, and anti-diversion features.
Manufactured in a secure UK facility — chain of custody from raw materials to dispatch.

Protectaseal tamper-evident bag tape is specified by procurement and quality assurance teams across banking, cash handling, duty-free, pharmaceutical manufacturing, education, and forensics. Our bag tapes are available through our approved global distributor network.

Tamper-evident bag tape is a security tape that reveals a visible message, typically "VOID" or "OPEN VOID", when removed from the bag. The message is permanently transferred to the substrate, making it impossible to reseal the package without detection.
Yes. We manufacture custom-printed security tape with your brand, logo, security message, unique identifiers, and Pantone-matched colours. Minimum order quantities and lead times are available on application.
Our bag tape is available in multiple adhesive compound specifications designed for different substrates, including conventional plastics, engineered plastics, and paper. Our technical team can advise on the right compound for your specific surface and operating temperature range.
UV-reactive bag.tape incorporates ultraviolet ink features — text, logos, or patterns — that are invisible to the naked eye and only visible under UV illumination. This adds a covert authentication layer for high-security applications.