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This is a 25-micron Grade 2 PET tamper-evident film, without adhesive and release paper.

The tamper-evident film is printed with invalid information and thermochromic ink. It is heat-sealed onto a PE/PP bag, then bonded on the other side of the bag. Hot melt adhesive is applied on the opposite side of the bag, and it is sealed with release paper.

The security bag sealing tape is made of a PET film coated with a solvent-based adhesive, used for the packaging of tamper-evident security bags. It carries hidden information that is not visible until the sealing tape on the bag is removed. Once peeled off from the packaging, the security bag sealing tape film fractures into two parts, revealing the concealed information and leaving obvious evidence of tampering.


Face stock25U Polyester Film
Total thickness28±3 mincrons
ColorRed & Blue or Custom
Adhesivesolvent based acrylic glue
Liner25# PET release film
Liner colorClear/White/Red/Custom
Security messageStandard VOID/ VOID OPEN/
Roll Width30mm /35mm/ 40mm/ 45mm
Roll Length1000m
Standard Core Size3 inch
Security FeatureVoid Message
GradeLevel 2
MOQ1000 square meters for standard design
Lead Time7- 10 days
Product FormRoll
Standard Size530mm*3000m
Carton Size:44cm×44cm×28cm
Box gross weight30kg

Level 2

1: PREVENT OPENING: When the packaging bag is opened at room temperature, the hidden “VOID” message will immediately appear, and cannot be restored.

2: Anti-Low Temperature Opening: In the instantaneous cooling conditions of refrigerant, attempting to open the seal at -45°C will immediately reveal the “VOID” hidden message, and cannot be recovered.

Features of Security Bag Seal: Once the security bag seal is peeled off, the hidden information becomes immediately visible, preventing the product from being opened, altered, and stolen, safeguarding customer privacy.

Advantages: Sealing packaging with the security bag can enhance the security of items, prevent theft, and provide better protection for your goods and important property during transportation.

Easy to use: Affix the security bag seal to the packaging bag, press firmly, and wait for over 1 minute—the security bag seal will break into two, revealing the faintly visible VOID word.

Product Description

This tamper-evident bag sealing tape is made of PET film coated with a solvent-based adhesive, designed for the packaging of tamper-evident bags. It is imprinted with hidden information, which remains invisible until the bag sealing tape is torn off. Once removed from the packaging, the tamper-evident bag sealing tape film splits into two, displaying the hidden information and leaving clear evidence of opening.

Standard Stock: 1 roll
Special Order (Customized Hidden Message): 530 mm * 2000 m

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