How to Print Logos on Plastic Seals?

Printing logos on Plastic Security Seals is an essential part of modern product protection and brand management. For manufacturers, logistics providers, and exporters, adding a logo or company identification on plastic seals enhances traceability, helps deter tampering, and strengthens brand credibility. As a professional supplier in the security seal industry, we often receive questions from customers about how logos are printed and which method is best. This guide explains the most common printing techniques used for plastic seals and their advantages.

1. Laser Marking

Laser marking is one of the most durable and tamper-resistant printing methods. The laser burns the surface of the plastic, leaving a permanent, non-removable mark.

Advantages:

Highly resistant to abrasion

Impossible to remove without visible damage

Ideal for serial numbers, QR codes, and barcodes

Professional, high-contrast appearance

Laser marking is widely used for Cable Seals, adjustable pull-tight seals, and high-security plastic seals. If your application requires strict tamper evidence, laser marking is the most recommended option.

2. Hot Stamping (Heat Stamping)

Hot stamping uses a heated metal plate to press inked foil into the surface of the plastic seal. This creates a clean, colorful logo that stands out visually.

Advantages:

Bright and customizable colors

Clear, professional appearance

Suitable for large-volume production

Works well on smooth plastic surfaces

This method is commonly used for pull-tight plastic seals and meter seals where branding needs to be visually appealing.

3. Pad Printing (Ink Printing)

Pad printing transfers ink from a silicone pad onto the plastic seal. It is flexible and can print on irregular or curved surfaces.

Advantages:

Cost-effective for simple logos

Allows multi-color printing

Fast production time

Suitable for promotional or general-use seals

However, pad-printed logos may fade with heavy friction, so it is not recommended for high-security applications.

4. Digital UV Printing

Digital printing uses UV-curable ink and offers extremely high-resolution graphics.

Advantages:

Full-color and gradient options

High clarity and detail

Excellent for branding-focused projects

Suitable for plastic seals with a flat printing area

Digital printing is ideal when customers want strong branding with multiple color elements.

Which Printing Method Should You Choose?

If security is your priority → choose laser marking .

If you want colorful branding → choose hot stamping or digital printing .

If you want a low-cost solution → choose pad printing .

A good supplier should also provide printing samples before mass production, ensuring that the logo matches your expectations in size, clarity, and durability.

By understanding these printing methods, buyers can select the right type of plastic seal for customs, logistics, transportation, retail, or energy utilities. Clear branding not only improves product authentication but also increases trust across the entire supply chain.