Tamper-evident Film & Tamper-evident Labels
Compare: DUN-GHOST™ (Invisible Covert Security) | DUN-GUARD™ (Visible Void-Evident)
DUN-GHOST™ – Advanced Invisible Tamper-Evident Film
DUN-GHOST™ is an advanced, tamper-evident PET film from Dunmore designed to keep your products safe from tampering and counterfeiting. Built on Dunmore’s industry-leading innovation, DUN-GHOST™ provides invisible protection until the moment it’s needed.
Key Benefits
- Covert Security Layer — hidden VOID message is invisible until tampering occurs
- Premium Look and Clean Aesthetics — maintains high-end appearance
- Dual Authentication — overt label + covert VOID messaging
- Harder to Defeat — difficult to copy or remove without leaving evidence
- Universal Print Flexibility — first-surface topcoat supports water-based, solvent, and UV inks
- Differentiation — American-made, proprietary technology
Proprietary Reveal Quality™ Technology
We’ve pioneered an invisible film that instantly detects and responds to intrusion. Reveal Quality™ ensures a covert VOID message is revealed upon tampering—sharp, clean, and legible with reduced residue and smearing.
Built for the North American Market
DUN-GHOST™ meets the needs of North American companies demanding the highest standards of quality and performance.
DUN-GHOST™ Film Specifications
Physical
| Tensile Strength (MD) | 30,500 PSI | ASTM D882 |
| Tensile Strength (TD) | 32,000 PSI | ASTM D882 |
| Elongation (MD) | 160.0 % | ASTM D882 |
| Elongation (TD) | 130.0 % | ASTM D882 |
Thermal
| Shrinkage (MD) | 1.2 % (30 min @ 150 °C) | — |
| Shrinkage (TD) | 0.6 % (30 min @ 150 °C) | — |
Metallization
| Aluminum (outside) | 99.9 % pure Al | — |
| Optical Density | 2.0 to 2.4 | — |
Adhesion
| Coating Adhesion to Film | Pass | Internal Test Method |
Shelf Life
Maintained one year in original packaging at 70 °F ± 20 °F and 50% relative humidity ± 20%.
Why Dunmore
Decades of experience put Dunmore at the forefront of coating and lamination technology. DUN-GHOST™ is one example of how our expertise and pioneering spirit deliver breakthroughs to help your products and business succeed.
Contact Us Prefer visible, void-evident security? See DUN-GUARD™
DUN-GUARD™ – Visible Void-Evident Facestock
DUN-GUARD™ tamper-evident / void-evident facestock films deliver security to ensure brand protection and anti-counterfeiting.
DUN-GUARD™ films use our proprietary coating and lamination technology
- Pressure-sensitive adhesives
- Label or tape format
- Covert or overt functions
Use DUN-GUARD™ to create:
- Security labels
- Tamper-evident labels
- Tamper-evident tape
- Void labels
Count on high-performance properties:
- Adhesive deadening feature
- High heat and humidity-resistant
- Tamper-evident with easy, medium, or tight release properties
- UV/IR activated
Using proprietary covert and overt coating and lamination technology, Dunmore produces tamper-evident films that are critical for brand protection and anti-counterfeiting. Typical materials used in tamper-evident labels that Dunmore supplies include PET, polystyrene, polyethylene, and OPP. Dunmore can provide security label film in a wide range of thicknesses in white, silver, clear, and brushed colors. Topcoats can be added based on desired print method, such as flexo, thermal transfer, laser, etc.
Tamper-evident Technology
Dunmore's covert and overt tamper-evident film technology is used with customers’ products to create the tamper-evident or void-evident effect for brand protection. For example, Dunmore provides the surface destruct film used by automotive manufacturers on vehicle information labels. If the security labels are removed, tampering is obvious. Dunmore's film typically works with a pressure-sensitive adhesive in label or tape format to provide anti-counterfeiting and tamper-evident security.
- Adhesive deadening feature
- High heat and humidity resistant void
- Tamper-evident void with easy, medium, or tight release properties
- UV & IR activated
Tamper-evident Film & Label Options
Shield Lock
Broken Chain
Finger ID
Global Open
Silver VOID
Spanish Open
Tamper-evident Label Stock
Dunmore’s tamper-evident films are selective-release constructions available with surface or sub-surface destruct layers. The film separates to leave evidence of tampering—typically “VOID”; custom designs (e.g., a corporate logo) can be applied to any construction. Label facestock is available in a variety of colors, including metallized finishes, and can be custom color matched. Covert security can include UV / IR or taggants requiring devices to authenticate.
Sub-Surface Destruct Tamper-evident Labels
The sub-surface destruct film uses either a metallized or coated layer. With a suitable pressure-sensitive adhesive, the film allows immediate identification of tampering if removal is attempted. When the label is removed, the metallized or coated layer splits, leaving an imprinted “VOID” pattern showing undeniable evidence of tampering.
Surface Destruct Film Tamper-evident Film
Dunmore’s surface destruct film is designed for use with an overlaminate. If the overlaminate is removed, the imprintable surface of the security label splits in a tamper-evident pattern.
Contact Us for Tamper-evident Film Facestocks used to make Labels and Tape
Please Contact Us to find out more about using Dunmore security films for your tamper-evident applications. Looking for invisible covert security? Explore DUN-GHOST™