Tamper-Evident Tape for Secure, One-Time Bag Sealing Applications

We specialize in manufacturing Permanent Bag Sealing Tapes, designed for secure, one-time-use applications such as courier bags, security packaging, and confidential envelopes. These tapes provide irreversible sealing - once applied, the seal cannot be reopened without visible damage, ensuring package integrity throughout transit and storage.

Tamper-Proof Structure

The tape cannot be removed without damaging the bag or the seal, offering reliable protection against tampering and unauthorized access.

Strong Adhesion Performance

Engineered for excellent tack and holding strength across a wide range of film materials, ensuring secure sealing during transportation and handling.

Flexible Structure Options

Available in multiple adhesive layer formats to suit different bag designs and sealing processes.

Environmentally Compliant

All materials comply with international safety and environmental standards, making the tapes suitable for global use.

Permanent Bag Sealing Tape product list
Sanlin's PEPA Permanent Bag Sealing Tape is a specialized, durable double-sided tape crafted for sec...
Sanlin's Aluminum Permanent Bag Sealing Tape is a specialized, durable double-sided tape crafted for...
Sanlin's White Permanent Bag Sealing Tape is a specialized, durable double-sided tape crafted for se...
Transparent Permanent Bag Sealing Tape
Sanlin's Transparent Permanent Bag Sealing Tape is a specialized, durable double-sided tape crafted...
Sanlin’s Paper Permanent Bag Sealing Tape, ideal for securely sealing kraft paper bags, envelopes, a...
Double Side Tissue Paper
Double side Tissue tape is crafted with cotton paper as the substrate, coated on both sides with pre...
Why choose Sanlin's Permanent Bag Sealing Tape

In-House Production of Key Raw Materials

We produce our own PET release films, PP films, and silicone coatings, which enables us to have complete control over product consistency and performance. This integrated production approach significantly enhances cost-efficiency for our customers.

Automation and Competitive Cost

Our team are designed to improve productivity and develop automated manufacturing processes, improving production efficiency and reducing downtime.

Scalable Production & Global Footprint

Our large-scale production capacity enables fast response to urgent orders while maintaining consistent product quality and short lead times.

Comprehensive Quality Assurance

Every product batch undergoes thorough third-party testing and certification to ensure compliance with international standards and overall reliability even high volume.

Advanced Adhesive Technology Precision Coating Seamless Automation Integration
Seasonal Adhesive Formulation

Seasonal Adhesive Formulation

To machine consistent performance in varying climates, we use season-specific adhesive systems. This ensures reliable and durable adhesion across a wide range of conditions.

  • A summer-grade adhesive optimized for warm conditions
  • A winter-grade adhesive formulated for cold environments
Precision Coating Technology

Precision Coating Technology

With multiple layer, super coating films, we ensure adhesive uniformity and dimensional accuracy, supporting both manual and automated applications with consistent results.

Areas of application

Based on three decades of expertise, SANLIN provides customized specific packaging solutions for companies of all sizes. Our product portfolio ranges from cost-effective products to industrial-grade customized production systems, optimally utilizing the packaging needs of all global paper applications.

Courier and express delivery bags
Courier and express delivery bags
Tamper-evident security packaging
Tamper-evident security packaging
Confidential document pouches
Confidential document pouches
E-commerce poly mailers
E-commerce poly mailers
Medical and pharmaceutical logistics packaging
Medical and pharmaceutical logistics packaging
Lssues related to Permanent Bag Sealing Tape
Will the tape work in extreme temperatures or different climates?

Yes. Our tapes use season-specific adhesive formulations:

  • Summer-grade adhesive for warmer months
  • Winter-grade adhesive for colder months

This ensures consistent sealing performance in both high and low temperatures, preventing issues like glue softening or brittleness.

Are your tapes compatible with automated bag-making machines?

Yes. Our tapes are manufactured with precise dimensional tolerance and stable release properties, making them fully compatible with high-speed automatic sealing and cutting machines. This ensures smooth operation and reduces machine downtime.

How do I choose the right tape type for my product?

Our team can assist you in selecting the most suitable tape based on your bag material (e.g., PE, OPP, CPP), application scenario (e.g., secure or reusable), and operating environment. Samples and technical support are available to help with testing and validation.

Perhaps you have other needs?
In order to ensure that the production fully meets your needs, we also offer a professional packaging customization service
  • Special packaging customization
  • Vacuum film material customization
  • Function Extension Service
  • Equipment cooperative optimization
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Lynn@sanlin-tech.cn

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