To ensure that fire protection equipment is always operational.

COMMON APPLICATIONS: Fire extinguishers, valve systems, fire sprinkler valves, fire hood systems

Whether you are choosing from our broad inventory of plain and dated seals or customizing your own, all of our seals are available in an industry-leading variety of colors. Our Tamper Seals are UL Certified in both the U.S. and Canada for use on fire extinguishers. These CSS seals are made in America and can be customized with your logo with short lead times. Each of our seals offer increased security and reliability through a redesigned locking barrel and a more stable platform to ensure the highest print quality. Extra long and durable seals available for sprinkler sealing and integrity.

Plastic Security Seals

Heavy Duty Pull Tight Seal (HPT)

Plastic Truck Seal (PTS)

Medium Duty Pull Tight Seal with Tear Off (MPT- TO)

Medium Duty Pull Tight Seal - Non Tear-Off (MPT- NTO)

Light Duty Pull Tight Seal (LPT)

Light Duty Pull Tight Seal (LPT) - Tear-Off

One Piece Seal (OPS)

One Piece Padlock Seal - (OPP)

One Piece Padlock Seal II (OPP-II)

Fixed Length Seal (FLS)

Twin Tote Seal (TTS)

Epic Seal - Tear-Off

Epic Seal - Non-Tear Off

Sky Seal - Tear-Off

Sky Seal - Non-Tear Off

Galax 350 - Non-Tear Off

Frequently Asked Questions

Yes. Cambridge Security Seals provides tamper-evident security seals specifically suited for pharmaceutical and healthcare applications, including:

  • Plastic pull-tight and fixed-length seals — For securing pharmaceutical shipments, medical supply totes, and clinical trial materials.
  • Tamper-evident tape and labels — Self-voiding adhesives that provide instant visual evidence if a package has been compromised.
  • Metal detectable seals — Our Epic, Sky, and Galax 350 seals contain metal additives that can be detected by standard industrial metal detectors and X-ray equipment, making them ideal for food and pharmaceutical environments where foreign object detection is critical.
  • Cash and document seals — For securing pharmaceutical drop-off/pick-up bags and controlled substance documentation.

Drugs, medicine, medical supplies, and prescription drugs all require strict chain-of-custody controls. CSS seals support compliance with regulatory requirements and patient safety protocols.

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Cambridge Security Seals serves a broad range of industries across the United States and internationally. Our security seals are used in:

  • Airlines — Passenger catering carts, cargo, ground transportation, and laundry services
  • Cargo, Freight, Logistics, Trucking, Transportation, and Warehousing
  • Pharmaceutical and Healthcare — Drugs, medical supplies, and emergency medical equipment
  • Food and Beverages — Harvesting, processing, transportation, and cold chain
  • Banking and Corporate — Document management, cash bags, and confidential records
  • Government and Law Enforcement — Elections, classified documents, and chain of custody
  • Defense and Military — Armaments, equipment, and supply chain traceability
  • Agriculture and Dairy — Food safety and traceability from harvest through distribution
  • Retail — Theft prevention and supply chain integrity
  • Industrial Manufacturing, Oil and Gas, Chemicals, and many more

Each industry has unique security requirements, and CSS works with customers to recommend the right seal for their specific application.

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For cargo, freight, logistics, trucking, and warehousing applications, Cambridge Security Seals offers several options depending on the level of security required:

  • High-security bolt seals — C-TPAT compliant and ISO 17712 certified, recommended for ocean containers, cross-border shipments, and high-value freight.
  • High-security cable seals (3.5mm and 5.0mm) — Also C-TPAT compliant and ISO 17712 certified, suitable for truck trailers, rail cars, and intermodal containers.
  • Plastic pull-tight seals — Cost-effective tamper-evident options for less-than-truckload (LTL) shipments, domestic freight, and warehousing.
  • Plastic truck seals (PTS) — Fixed-length seals commonly used for over-the-road trucking.

Uniquely numbered seals are used for tracking shipments, as the unique numbers are recorded at origin and verified at destination to confirm cargo integrity. All seals can be customized with barcodes, QR codes, and company branding for added traceability.

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