When it comes to securing shipments, packaging tape plays a crucial role in protecting goods from tampering, theft, and damage. Two of the most commonly searched and used options in secure packaging are Water-Activated Tape (WAT)and Paper Tamper-Evident Tape. While both offer strong sealing capabilities, they differ significantly when it comes to tamper evidence—a critical factor in preventing unauthorized access to packages.
So, which is the better choice? Let’s break it down.
What is Water-Activated Tape (WAT)?
Also known as gummed tape or kraft paper tape, Water-Activated Tape (WAT) is a paper-based tape that requires moisture to activate its adhesive and form a strong bond with packaging materials, particularly corrugated cardboard.
Pros of Water-Activated Tape:
✔ Strong adhesion—fuses with cardboard for a reinforced seal
✔ Eco-friendly—made from paper and biodegradable materials
✔ Can be custom printed for branding and tracking
Cons of Water-Activated Tape:
❌ No clear tamper evidence—if removed, a new piece of WAT can be applied without detection
❌ Requires a dispenser or sponge for activation—slower application process
❌ Susceptible to humidity—excess moisture can weaken the adhesive
What is Paper Tamper-Evident Tape?
Paper Tamper-Evident Tape is a self-adhesive tape that provides an instant tamper-evident feature by leaving behind a visible message (e.g., “VOID” or a custom print) when removed. Unlike WAT, this tape is designed to make tampering obvious and irreversible.
Pros of Paper Tamper-Evident Tape:
✔ Instant tamper evidence—reveals a ‘VOID’ or custom message when lifted
✔ No additional equipment needed—easy peel-and-stick application
✔ More secure than WAT—cannot be resealed without clear signs of interference
✔ Eco-friendly options available—recyclable and made from sustainable materials
✔ Faster application—no water, sponges, or dispensers required
Cons of Paper Tamper-Evident Tape:
❌ Cannot be resealed once tampered with (which is the point!)
❌ Slightly higher upfront cost, but prevents theft-related losses
Security Comparison: Which One is More Secure?
When it comes to packaging security, the biggest concern for businesses is whether their shipments arrive untampered and intact.
| Feature | Water-Activated Tape (WAT) | Paper Tamper-Evident Tape |
|---|---|---|
| Tamper Evidence | None – can be replaced with new tape | High – leaves an irreversible VOID message |
| Ease of Application | Requires water & dispenser | Quick, self-adhesive application |
| Security Strength | Can be carefully removed and resealed | Cannot be resealed without clear evidence |
| Environmental Impact | Biodegradable, but may require extra adhesives | Fully recyclable, no extra materials needed |
| Customization | Can be printed with branding | Custom VOID messages, serial numbers, QR codes |
| Cost-Effectiveness | Lower cost but higher security risk | Prevents costly theft and tampering |
The Verdict: Paper Tamper-Evident Tape Wins for Security
While Water-Activated Tape (WAT) is a strong and eco-friendly packaging option, it lacks a tamper-evident feature, making it possible for bad actors to open and reseal packages without detection.
On the other hand, TamperTech’s Paper Tamper-Evident Tape offers instant and irreversible tamper evidence, ensuring that any unauthorized access is immediately visible. This makes it the superior choice for securing high-value, sensitive, or regulated shipments.
Best Use Cases for Paper Tamper-Evident Tape
If security is a top priority, Paper Tamper-Evident Tape is the best choice for industries such as:
✅ E-commerce – Prevents package tampering during transit
✅ Pharmaceuticals – Ensures medical shipments remain untouched
✅ Luxury Goods – Protects high-value items from theft
✅ Courier & Postal Services – Provides security without requiring special equipment
✅ Government & Legal Documents – Maintains integrity of confidential mailings
Secure Your Shipments with TamperTech
If you’re looking for a foolproof way to secure packages and prevent theft or unauthorized access, TamperTech’s Paper Tamper-Evident Tape is the smarter choice.
🔒 Don’t leave your shipments vulnerable—switch to a security solution that works.
📩 Contact us today for a free sample or a demo to see how our tamper-evident packaging solutions can work for your business!