Tamper-Evident Release Films
Standard VOID Film and Labels
Permanent-transfer tamper evidence that leaves a visible VOID residue when removal is attempted.
- Residue transfer
- Coated board, glass, plastic, metal
- Pharma
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Industry
Pharmaceutical and Healthcare Packaging
In pharmaceutical packaging, the question is not only whether a package was opened — it is whether anyone can prove it was not.
What to send with your enquiry
- Packaging substrate and format
- Target market or markets
- Compliance documentation required
- Operating and storage temperature conditions
- Application method and volume
Industry context
Pharmaceutical and healthcare packaging carries a clear requirement for visible evidence of interference. A VOID construction that transfers permanently to the package surface gives an inspector something to look at, rather than relying on the absence of visible damage.
Standard VOID material suits coated paperboard, glass, plastic and metal — the substrates most pharmaceutical secondary packaging uses. Where a package requires a security-bag or envelope format, the tamper-evident tape constructions apply instead.
On compliance: applicable release-liner grades are available with REACH, FDA and RoHS compliance, and documentation availability depends on the selected construction and intended application. PROASP supplies material — it does not certify a finished pharmaceutical package. Suitability must be confirmed through application testing on your side.
What makes this difficult
Proving a package was not interfered with
Absence of damage is not evidence. A transfer VOID construction leaves a permanent mark on the package if a seal is lifted.
Substrate compatibility
Residue transfer behaves differently on coated board than on porous stock. The correct construction depends on the packaging substrate.
Documentation for regulated markets
Compliance documentation requirements vary by market and by grade. Availability is confirmed against the construction and destination market.
Conditions across storage and distribution
Temperature and handling conditions across the distribution chain affect which construction is appropriate.
Attributes that matter here
These are the properties that decide whether a material works in this sector — and the ones worth being specific about when you enquire.
- Permanent, visible evidence of package interference
- Compatibility with coated paperboard, glass, plastic and metal
- Applicable compliant grades with documentation on request
- Custom VOID messaging where required
- Construction confirmed against operating and storage conditions
Solutions that apply
A starting point, not a specification. Final suitability should be confirmed through technical discussion and application testing.
Tamper-Evident Release Films
Level 4 Heat-Sensitive Film
Everything Level 3 does, plus a heat indicator that turns from white to pink when the seal is warmed.
- White to pink
- 100% in-house
- Level 3 features included
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Tamper-Evident Release Films
Security Bag Film
Integrate visible tamper evidence into your bag construction without compromising production efficiency.
- Level 3
- 27 – 45 mm
- Custom VOID message
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- Silicone release coatingPolyester or polypropylene base film
Silicone-Coated Release Films
PET Polyester Release Film
Consistent release and dimensional stability across labels, tapes and peel-and-stick constructions.
- PET and PP
- C1S and C2S
- 12–50 micron
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Discuss a pharmaceutical packaging application
Send the substrate or packaging format, the process it runs on, the requirement you need to solve and an indication of volume. The team will identify the most suitable construction or propose a development route.