10 Insider Security Tips the Barrier and Seal Industry Won’t Tell You

1. Tamper-evident doesn’t mean tamper-proof

   Many plastic seals can be cut and reattached with heat. Invest in seals that offer irreversible tamper indicators like colour change or fragmentation.

   
   

2. Use unique serial numbers with digital tracking

   Generic serial numbers can be easily replicated. Opt for barcoded or QR-coded seals that are logged in a centralised digital system to monitor chain-of-custody.

   
   

3. Never rely solely on one type of seal

   Layering multiple types of seals—such as using both metal cable and plastic indicative seals—adds complexity for would-be tamperers and improves security.

   
   

4. Opt for high-tensile strength cable seals

   Thin cable seals are easier to bypass. Choose multi-strand steel cables with a tensile strength above 1,000 kg for serious deterrence.

   
   

5. Use GPS-enabled locks for high-value shipments

   Advanced smart seals provide real-time tracking and alert you the moment a seal is breached or a shipment is rerouted.

   
   

6. Pre-assign and audit seal numbers before and after shipping

   This minimises the risk of internal theft. Discrepancies in assigned seal numbers should be flagged and investigated immediately.

   
   

7. Use envelope seals with VOID technology for documents

   Security envelopes with chemical- and heat-sensitive layers reveal "VOID" when tampered with—ideal for legal or financial documents.

   
   

8. Apply seals correctly—placement matters

   Improper application renders even the best seal ineffective. Always seal across lock openings, hinges, or pressure points.

   
   

9. Rotate seal designs regularly

   Using the same style for extended periods allows fraudsters to find workarounds. Annual or biannual updates to seal types and colours are essential.

   
   

10. Audit your supply chain partners

    The best seal in the world won’t help if your partners are compromised. Conduct regular reviews and require documented seal handling procedures.

Red Arrow – Ireland’s Leading Supplier of Security Seals for Containers, Cable Seals, Plastic Seals, and Security Envelopes

Premium Security Sealing Solutions for Irish and Global Logistics

At Red Arrow, we pride ourselves on being Ireland’s most trusted supplier of barrier and export security seals, catering to a wide range of industries including shipping, logistics, warehousing, freight forwarding, and confidential document handling. Our products are engineered to ensure maximum tamper-resistance, supply chain integrity, and peace of mind.

We offer a comprehensive range of security seals, including high-strength metal cable seals, tamper-evident plastic security seals, robust barrier seals for containers, and security envelopes with integrated tamper alerts.

Unrivalled Metal Cable Seals for Enhanced Load Protection

When it comes to securing shipping containers, trucks, and high-value cargo, metal cable seals are the gold standard. Our cable seals feature galvanised or stainless steel multi-strand wire with break strengths that exceed international freight regulations.

• High tensile strength (up to 1,500kg)

• Laser-etched serial numbers for forgery resistance

• Customisable branding for full traceability

• ISO 17712:2013 compliant for global shipping standards

Red Arrow’s cable seals are tamper-evident, corrosion-resistant, and ideal for cross-border trade, freight forwarding, and bulk transport by land or sea.

Tamper-Evident Plastic Security Seals for Everyday Shipments

For lower-risk cargo and internal logistics, our plastic security seals provide a cost-effective, highly visible tamper-evident solution. Made from high-impact polypropylene or nylon, these seals are suitable for:

• Tote boxes

• Crates and storage cages

• Courier and delivery bags

• Duty-free trolleys and customs checks

We supply pull-tight, fixed-length, and tool-less breaking variants, all featuring break-off points, barcoding options, and heat-stamped serials to prevent undetected substitution.

Container Barrier Seals – Maximum Security for Maritime and Road Transport

Red Arrow offers an elite range of barrier seals designed for ISO containers, cargo trucks, and rail freight. These are high-security seals made from hardened steel or alloy, requiring bolt cutters for removal.

• Bolt seals with anti-spin mechanisms

• Heavy-duty cable and rod seals

• Dual locking systems for added resistance

• Compliance with ISO 17712 and CTPAT

Barrier seals are essential for customs compliance and safeguarding against hijacking or pilferage during long-haul transport.

Confidential Document Protection with Secure Envelopes

We offer tamper-evident envelopes specifically designed to safeguard sensitive or regulated documents in transit. Our security envelopes are ideal for:

• Legal and financial firms

• Government departments

• Educational institutions

• Healthcare providers

Available in multiple sizes, our envelopes include VOID-release technology, watermark patterns, and barcoded tracking systems. Even the smallest breach attempt will be immediately visible.

Custom-Built Seal Programmes and Branding Options

We understand that every industry has unique requirements. That’s why Red Arrow offers custom seal solutions tailored to specific risk profiles, operational needs, and compliance obligations.

• Company logos and unique ID printing

• Colour-coded seals for quick visual identification

• Integration with digital chain-of-custody software

• Smart seals with NFC, GPS or RFID tech

Our solutions are scalable—from SMEs managing local logistics to multinational corporations moving high-value goods across continents.

Why Choose Red Arrow for Your Security Sealing Needs?

Uncompromised Quality: All our seals meet or exceed EU and global standards.

Trusted Nationwide: Proudly serving Irish businesses with rapid dispatch and local support.

Industry Insight: We continually innovate based on real-world logistics security challenges.

Total Peace of Mind: Our mission is to prevent tampering, theft, and loss—before they happen.

From plastic indicative seals to high-grade ISO container seals, our products are field-tested and backed by decades of industry expertise.

Applications Across Multiple Sectors

Our seals and envelopes are used in sectors such as:

• International shipping and logistics

• Pharmaceutical and healthcare logistics

• Retail and cash-in-transit operations

• Postal and courier services

• Government and public sector document handling

Whether you're shipping from Dublin Port, securing freight on the M50, or protecting sensitive files in Galway, Red Arrow has a tailored solution ready to deploy.

Red Arrow – Your First Line of Defence in Logistics and Confidential Handling

Our team works closely with logistics professionals, operations managers, and compliance officers across Ireland to deliver sealing solutions that mitigate risk, increase accountability, and enhance trust.

When it comes to preventing tampering, theft, or loss, there is no room for compromise. Choose Red Arrow – Ireland’s most reliable provider of security seals and tamper-proof packaging solutions.