FAQ

Permanent vs Tamper Evident Sealing Tape: Key Differences for Secure Packaging

Introduction

In modern packaging and logistics industries, ensuring the security of shipped goods has become increasingly important. Businesses handling courier shipments, duty free retail products, or confidential documents must ensure that packages remain sealed and protected during transportation.

Two commonly used solutions for packaging security are permanent sealing tape and tamper evident tape. While both are designed to seal bags and packages, they serve different security purposes.

Understanding the difference between these two sealing technologies helps companies select the right packaging solution to protect products and maintain customer trust.

What is Permanent Sealing Tape?

Permanent sealing tape is designed to create a strong and irreversible bond when applied to plastic bags or packaging materials. Once the adhesive strip is pressed onto the bag surface, it forms a seal that cannot be opened without tearing or damaging the bag.

This type of tape focuses on adhesion strength rather than security indication.

Key Characteristics

• High adhesive strength

• Strong initial tack for quick sealing

• Cost-effective for large volume packaging

• Suitable for courier bags and poly mailers

Permanent sealing tape is commonly used for logistics packaging, courier bags, and retail mailing envelopes.

What is Tamper Evident Tape?

Tamper evident tape is designed to provide visible evidence when a package is opened or tampered with.

When someone attempts to remove the tape, a hidden message such as VOID, OPENED, or customized security patterns will appear on the bag surface or on the tape itself.

This security feature allows businesses and consumers to quickly identify unauthorized access.

Key Characteristics

• Hidden security message technology

• Visible tampering evidence

• Anti-counterfeit protection

• Customizable security patterns

Tamper evident tape is widely used for duty free bags, confidential documents, electronics packaging, and high-value shipments.

Key Differences Between Permanent Sealing Tape and Tamper Evident Tape

Permanent sealing tape focuses on strong adhesive sealing, while tamper evident tape focuses on security detection.

Applications of Security Sealing Tape

Security sealing tapes are widely used across various industries where package integrity is important.

Courier and Logistics Packaging

Courier companies use sealing tape to ensure packages remain closed throughout transportation.

Duty Free Retail Bags

Airports and duty free retailers use tamper evident tape to comply with international aviation security requirements.

Confidential Document Protection

Government and financial institutions use security tape to protect confidential information.

How to Choose the Right Sealing Tape

When selecting sealing tape for packaging applications, companies should evaluate several factors.

Security Requirements

If visible tamper evidence is required, tamper evident tape is the better option.

Environmental Conditions

Temperature and humidity can affect adhesive performance. Choosing the correct adhesive formulation is essential.

Packaging Materials

Different plastics such as HDPE, LDPE, and OPP require different adhesive technologies.

Customization Needs

Many manufacturers offer customized printing, colors, and security messages.

About Seal King

Seal King is a professional manufacturer specializing in resealable bag sealing tape, permanent sealing tape, and tamper evident security tape for global packaging applications.

With more than 20 years of experience in adhesive tape manufacturing, Seal King provides customized solutions for industries including logistics, duty free retail, and security packaging.

Need help selecting the right security tape?

Contact our team for:

• Product consultation

• Technical data sheets

• Sample requests

Contact Us & Request Samples: 

jessica.chang@sealking.com.tw
chialin.wang@sealking.com.tw

SEAL KING is a leading brand of tape industry with 40-years history originated from Taiwan, has been fully devoted to R&D eco-friendly products with our own factory.

With innovative double-side sillicon treated applied on all our products, release liner are not only easy to peel (Super light peeling force), but also having ANTI-STATIC effect in general, which greatly increase work effieceincy.

* For pancake roll with 3inch paper core, 10/15/20 rolls per carton.
* For spools with 6inch paper core, 1/2 spool per carton in general.
* Paper core & carton printing could choose to print “Seal King” LOGO or remain blank.

There will be a minimum quantity requirement, but as a trial order for the first time, we can consider your requirement.

* 13 months from the date of manufacture.
* We provide Products Warranty Against Defects in Material and Workmanship for applicable Product.

Made-to-order product, around 30 days after confirmation your purchase order.

(1). We have our own R&D team, factory, professional sales channel with 40years experience.

(2). We are professional manufacture of bag sealing tape since 1980s.

(3). Export worldwide, over 70 countries.

(4). All our products are Made-to-order, adjustive adhesion and meet all your unique need.

(5). Reasonable price and high-quality product.

(6). Certifications (REACH, ROHS,MSDS…) and exhibitions.

Let"s build a Safe and Satisfying packaging that puts your product Stonger.

Schedule a call today to get free sample.