Airline Freight Logistic Transport Custom Plastic Seal Hand Tear off 235mm Pull Tight Disposable Plastic Security Seal

Plastic security seals are high-strength tamper-evident security devices made primarily from durable engineering plastics, specifically designed to effectively prevent counterfeiting, theft, unauthorized access, leakage, and tampering risks in a wide range of industrial environments. They are widely used across multiple industries and application scenarios, playing a key role in ensuring the integrity, authenticity, and safety of goods during transportation, storage, handling, and operational use throughout the supply chain. The plastic seal is a single-use self-locking security seal that is designed for one-time application; once locked, it cannot be reopened without visible damage, providing reliable tamper-evident protection and security assurance.

These plastic seals feature a wide variety of color options and flexible customization capabilities, allowing customers to select colors based on branding or operational requirements. They support logo printing, barcode printing, serial number marking, and other identification functions for improved traceability, inventory management, and anti-counterfeiting control. The size specifications are highly diverse and adaptable to different industrial sealing needs. In addition, the plastic seals are designed with adjustable length structures and reinforced locking mechanisms, ensuring stable performance and strong resistance against tampering, theft, and counterfeit interference in complex working environments.

They are mainly used in logistics transportation, freight security systems, medical equipment sealing, warehouse storage management, and industrial packaging applications. They are also widely applied in special sealing scenarios such as video equipment protection, beverage product sealing security, and quality inspection processes. In addition, they are commonly used as plastic labeling and identification solutions for bags, garments, and consumer goods packaging, helping improve traceability, operational efficiency, and brand protection across multiple industries.

Transportation & Logistics:
Plastic security seals are widely used in modern logistics and transportation systems to ensure cargo safety, prevent unauthorized access, and maintain supply chain security. For truck and container sealing applications, high-strength plastic seals made from polypropylene materials are commonly used, offering excellent tensile strength and reliable locking performance, with breaking resistance reaching up to 55 lb depending on specifications and design. These seals often feature sequential numbering, laser printing, or barcode marking systems to support full traceability and logistics management.

In advanced industrial and specialized applications, plastic sealing solutions are also used in marine engineering environments. For example, submarine hatch sealing systems utilize high-performance engineering plastics such as Nylatron™ MC 907 PA6, which provide exceptional mechanical strength, wear resistance, and environmental stability. These large-scale plastic seals are used to securely close acrylic pressure spheres in manned submersibles, meeting strict marine safety standards and operational reliability requirements without the need for lubrication, ensuring long-term structural safety.

Plastic security seals are tamper-evident sealing devices made primarily from engineered plastic materials, designed to secure containers, equipment, and systems against unauthorized access, contamination, leakage, or operational interference. They are widely used across global industries due to their durability, cost-effectiveness, easy application, and strong traceability performance in modern logistics and security management systems.

Plastic seals are widely utilized across various industries to guarantee product integrity, tamper evidence, and operational safety, with key applications in food processing, pharmaceutical manufacturing, energy systems, transportation logistics, and high-precision scientific fields. Common applications include securing truck doors, trailer doors, storage totes, valves, airline catering carts, coin collection bags, inner drum liners, storage sacks, and any container fitted with a hasp or loop mechanism.

Plastic seals are also extensively used to secure shipping containers, tanker trucks, and courier packaging bags, effectively preventing unauthorized opening or tampering with goods during transportation. Their single-use breakaway design and unique sequential numbering system ensure that any forced or manual opening will leave visible evidence, thereby enhancing overall transportation security and traceability.

In courier services and e-commerce logistics, single-use anti-counterfeiting plastic seals (also referred to as security tags) are widely applied. With options such as custom surface textures, printed company logos, or serialized identification codes, they help improve brand recognition while also strengthening customer trust and product authenticity verification.

Utilities & Metering Applications
In the electricity, water, and gas metering sectors, plastic padlock seals such as AC&M Type 7001 are commonly used to provide secure, disposable locking with clear tamper indication. These seals are especially suitable for smart metering systems, where remote reading is required and inspections are infrequent, demanding long-lasting and environmentally resistant sealing solutions.

Material Composition & Performance
Plastic seals are manufactured using high-quality engineering polymers with excellent durability and environmental resistance:
Polypropylene (PP): Offers strong resistance to moisture, chemicals, and UV exposure, making it suitable for outdoor and transportation environments.
Acetal Copolymer: Provides high mechanical strength, low friction, and excellent dimensional stability, commonly used in precision and high-cycle applications.
Polycarbonate: Known for superior impact resistance and transparency, making it ideal for inspection-oriented sealing solutions.
Plastisol: A flexible gasket-like material used in metal cap liners for glass containers, forming airtight seals during hot-filling processes.

Industry Applications
Logistics & Freight: Used to secure trailers, containers, and cargo doors, preventing theft and unauthorized access during transit.
Food & Pharmaceuticals: Induction seals and cap liners help maintain sterility, freshness, and contamination protection throughout supply chains.
Banking & Security: Applied to cash bags and evidence containers to ensure chain-of-custody integrity and tamper-evident protection.

1. Low cost with durable material & single-use irreversible design
Our security seals are designed with a cost-effective structure while maintaining high durability and reliability. The single-use irreversible locking mechanism ensures that once the seal is applied, it cannot be reused or restored, effectively preventing unauthorized access and tampering during transportation, storage, and distribution processes.

2. High-strength materials: stable tensile performance
Manufactured from high-quality PP or engineering-grade plastics, our seals provide excellent and stable tensile strength. These materials ensure strong resistance to pulling force, impact, and deformation, making them suitable for demanding logistics, industrial packaging, and cargo security applications.

3. Factory direct supply with competitive pricing
We provide factory-direct pricing advantages with no middleman cost, ensuring competitive market value for global buyers. Custom sample development is available according to customer requirements, and all production processes are strictly controlled under quality management systems to ensure consistent product reliability.

4. Global export experience with flexible shipping solutions
With extensive international export experience and complete export qualifications, we support multiple transportation solutions including sea freight, air freight, and land transportation. This ensures flexible delivery options for customers across different regions and project requirements.

5. Anti-counterfeiting and traceability technologies
Our security seals support advanced anti-counterfeiting features such as laser engraving, unique serial numbering, and tamper-evident markings. Selected models can also integrate RFID technology, enabling digital tracking, real-time monitoring, and improved supply chain visibility for logistics and high-value goods.

6. User-friendly and efficient operation design
Designed for fast and practical usage, our seals can be applied easily with one-hand operation and require no additional tools. This makes them ideal for high-frequency sealing environments such as warehouses, distribution centers, and field operations where speed and efficiency are essential.

7. Material advantages for different applications
We offer multiple material options to meet various industrial needs. HDPE provides durability, chemical resistance, and cost efficiency for general sealing applications. PP material is highly resistant to chemical corrosion, making it suitable for pharmaceuticals and sensitive goods. Elastomer-blended plastics combine flexibility and resilience, offering a balanced performance between rigidity and elasticity.

8. Lightweight structure with easy installation
Compared with traditional metal seals, plastic security seals are significantly lighter, helping reduce transportation weight and overall system load. Their ergonomic design allows quick, tool-free installation, which greatly improves assembly efficiency and reduces labor costs in large-scale operations such as logistics and manufacturing.

9. Tamper-evident security and full traceability
Most of our plastic security seals are designed for single-use applications with clear tamper-evident locking mechanisms. Once broken, they cannot be resealed without visible damage. Additional features such as laser-printed serial numbers, barcodes, color coding, and holographic elements ensure complete traceability and compliance for logistics, elections, banking, and pharmaceutical industries.

10. Customizable and adjustable sealing design
Our pull-tight plastic seals feature adjustable locking lengths, allowing them to fit a wide range of container sizes and packaging types. This flexibility makes them suitable for irregular cargo, utility meters, voting systems, and industrial equipment, significantly improving usability across multiple application scenarios.

1. Q：Who are we?
A: We are based in Shandong, China, start from 2012, sell to Mid East, South Asia, Northern Europe,Africa, North America, Western Europe. There are total about 200-300 people in our office.

2. Q：How can we guarantee quality?
A: Always a pre-printing sample before mass production;
Always final Inspection before shipment;

3. Q: what can you buy from us?
A: bolt seal,cable seal,plastic seal,meter seal,metal strap seal, etc.

4. Q: Why should you buy from us not from other suppliers？
A: 12 years experiences, 300 sets of models with different style , meet your different demands with fast delivery. All our material is environmental, we won many honors from government. Our goods are popular in 300 countries.

5. Q: Do you accept custom orders?
A: Yes. We provide comprehensive OEM & ODM customization services, including:
LOGO printing and unique serial numbering
Customized sizes, colors, materials, and packaging

6.Q: What certifications do you have?
A: We maintain a complete and internationally recognized certification system, including:
ISO 9001 – Quality Management System
ISO 14001 – Environmental Management System
ISO 45001 – Occupational Health & Safety Management System
ISO 17712 – High-Security Seal Certification
Third-party test reports from SGS and other authorized institutions