--- title: "1 new message" description: "Security seals and tamper evident labels supplied in bulk. VOID security labels, numbered seals, security tape and custom printed tamper evident stickers across the UK." lang: en json-ld: | [ { "@context": "https://schema.org", "@type": "Product", "name": "Security Seals & Tamper Evident Labels", "description": "Security seals and tamper evident labels supplied in bulk. VOID security labels, numbered seals, security tape and custom printed tamper evident stickers across the UK.", "image": [ { "@type": "ImageObject", "url": "https://msppackaging.co.uk/__l5e/assets-v1/21729292-e1ce-407f-bdb3-0d69284c0c47/security-seals-tamper-evident-labels.jpg", "caption": "Numbered tamper evident security seal labels showing a VOID pattern after removal" } ], "brand": { "@type": "Brand", "name": "MSP Packaging" }, "category": "Tamper Evident Security Products", "url": "https://msppackaging.co.uk/security-seals" }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "What are security seals used for?", "acceptedAnswer": { "@type": "Answer", "text": "Security seals prove whether a package, container or bag has been opened between despatch and receipt. They are used across cash handling, logistics, pharmacy, evidence storage and asset control to give a visible tamper indicator and an auditable record." } }, { "@type": "Question", "name": "How do tamper evident labels work?", "acceptedAnswer": { "@type": "Answer", "text": "A tamper evident label uses a split adhesive. When someone tries to peel it, the top layer separates and leaves a permanent VOID or OPENED message on the surface underneath. The label cannot be reapplied without the message showing." } }, { "@type": "Question", "name": "Can security seals be numbered?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. Seals and labels can be sequentially numbered, barcoded or QR coded so each one ties to a specific consignment, route, till or evidence record." } }, { "@type": "Question", "name": "Can you print our branding on security labels?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. Security seals and tamper evident labels can be custom printed with logos, warning text, site codes and colour matching, alongside the numbering and barcode format your systems use." } }, { "@type": "Question", "name": "Do you supply security seals in bulk?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. Security seals, tamper evident labels and security tape are supplied wholesale on rolls and in boxed quantities, with bulk pricing for high-volume and multi-site users." } } ] }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://msppackaging.co.uk/" }, { "@type": "ListItem", "position": 2, "name": "Security Bags", "item": "https://msppackaging.co.uk/security-bags" }, { "@type": "ListItem", "position": 3, "name": "Security Seals", "item": "https://msppackaging.co.uk/security-seals" } ] } ] --- [![MSP Packaging](/assets/msp-logo-B_E9uXWn.png)](/) [Home](/) Products About Us [FAQ](/faq)[Contact Us](/contact-us) [Request a Quote](/contact-us) # Security Seals & Tamper Evident Labels Tamper evident labels, VOID security stickers, numbered seals and security tape for organisations that need to prove whether a package, container or bag has been opened in transit. Supplied plain or custom printed with your branding, warning text, sequential numbering and barcodes, in bulk quantities for single sites or national networks. Sealing bags rather than cartons? See our [tamper evident security bags](/security-bags). [Enquire Now](/contact-us) ![Numbered tamper evident security seal labels with barcodes and a peeled label showing the VOID pattern](/__l5e/assets-v1/21729292-e1ce-407f-bdb3-0d69284c0c47/security-seals-tamper-evident-labels.jpg "Tamper evident security seal labels with VOID pattern") ## Types of Security Seal ### VOID security labels Peel or lift the label and a permanent VOID pattern is left behind on both the label and the surface, so any attempt at removal is obvious and irreversible. ### Numbered security seals Sequentially numbered and barcoded seals let each carton, bag, cage or container be logged against a movement record and reconciled at the other end. ### Security tape Tamper evident tape seals cartons, totes and pallet wraps along the full opening, giving a large tamper indicator where a single label would be easy to bypass. ### Bag seals Permanent adhesive seal strips for security bags and dispatch bags, closing the bag once with no way to reopen it without visible damage. ## How VOID Security Labels Work A tamper evident label is built from two bonded layers with a split adhesive. Applied to a clean surface, it behaves like a normal label. Lift it, and the layers separate: a permanent VOID message stays on the surface and a matching pattern appears on the label itself. The damage cannot be reversed and the label cannot be reused, so a receiving site can tell at a glance whether a consignment arrived as it left — the same principle used by the seals on our [cash security bags](/cash-security-bags) and [evidence bags](/evidence-bags). ## Custom Printed & Numbered Seals Sequential serial numbering Barcode and QR code printing Company logos and brand colours Custom warning and instruction text Site, branch and route codes Multiple sizes and label materials ## Who Uses Security Seals Cash handling and cash-in-transit operators Logistics, courier and warehouse operations Pharmacies, hospitals and laboratories Police, forensic and legal teams Retail loss prevention teams Aviation, duty free and event security ## Security Seals FAQ ### What are security seals used for? Security seals prove whether a package, container or bag has been opened between despatch and receipt. They are used across cash handling, logistics, pharmacy, evidence storage and asset control to give a visible tamper indicator and an auditable record. ### How do tamper evident labels work? A tamper evident label uses a split adhesive. When someone tries to peel it, the top layer separates and leaves a permanent VOID or OPENED message on the surface underneath. The label cannot be reapplied without the message showing. ### Can security seals be numbered? Yes. Seals and labels can be sequentially numbered, barcoded or QR coded so each one ties to a specific consignment, route, till or evidence record. ### Can you print our branding on security labels? Yes. Security seals and tamper evident labels can be custom printed with logos, warning text, site codes and colour matching, alongside the numbering and barcode format your systems use. ### Do you supply security seals in bulk? Yes. Security seals, tamper evident labels and security tape are supplied wholesale on rolls and in boxed quantities, with bulk pricing for high-volume and multi-site users. ## Related Products [Tamper Evident Security Bags The core range of tamper evident security bags for cash, evidence and secure transit. View range ](/security-bags)[Police Evidence Bags Numbered forensic and police evidence bags with full chain-of-custody panels. View range ](/evidence-bags)[Cash Security Bags Secure cash bags for banking, retail cash handling and CIT collections. View range ](/cash-security-bags)[Money Bags & Coin Bags Coin bags and money bags for tills, cash rooms and coin deposit runs. View range ](/money-bags)[Pharmacy & Dispensing Bags Pharmacy bags and dispensing bags for community and hospital pharmacy. View range ](/pharmacy-bags)[Wicket Bags High-speed wicket bags for automated bagging and food production lines. View range ](/wicket-bags)[Mailing Bags Strong opaque mailing bags for e-commerce despatch and returns. View range ](/mailing-bags) ## Security Seals & Tamper Evident Labels for Your Operation Wholesale VOID labels, numbered security seals and security tape, printed to your specification. [Request a Quote](/contact-us) #### About Us - [Our Story](/about-us) - [Initial Packaging Solutions Ltd](/initial-packaging-solutions) - [FAQ](/faq) - [Contact Us](/contact-us) #### Our Products - [Security Bags](/security-bags) - [Evidence Bags](/evidence-bags) - [Cash Security Bags](/cash-security-bags) - [Money Bags & Coin Bags](/money-bags) - [Security Seals & Labels](/security-seals) - [Pharmacy Bags](/pharmacy-bags) - [Wicket Bags](/wicket-bags) - [Mailing Bags](/mailing-bags) - [Bespoke Packaging](/security-bags) #### Resources - [Blog](/blog) - [Sustainability](/about-us) - [Product Specifications](/security-bags) - [Help & Support](/faq) - [Request a Quote](/contact-us) #### Contact - [info@msppackaging.co.uk ](mailto:info@msppackaging.co.uk) - [Get in touch ](/contact-us) [![MSP Packaging](/assets/msp-logo-B_E9uXWn.png)](/) ##### Registered Office MSP Packaging Ltd · 9 Brighouse Business Village, 9 River Court, Middlesbrough, England, TS2 1RT ##### Company Details Registered in England & Wales · Company Reg No: 16551194 · VAT Reg No: GB 496376534 © 2026 MSP Packaging Ltd. 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