Is Kraft Paper Tape Waterproof? What Every Business Should Know

Is Kraft Paper Tape Waterproof? What Every Business Should Know

When it comes to packaging, strength, sustainability, and durability are always top priorities. With the growing shift towards eco-friendly solutions, kraft paper tape has become the go-to choice for many Australian businesses. But one common question keeps coming up — is kraft paper tape waterproof?

If your business handles parcels that may encounter moisture, rain, or damp conditions during transit, this is an important factor to consider. In this guide, we’ll break down exactly how kraft paper tape performs when exposed to water, and whether it’s the right choice for your packaging needs.

What Is Kraft Paper Tape?

Kraft paper tape is made from strong kraft paper combined with an adhesive. There are two main types:

1. Pressure-Sensitive Kraft Paper Tape (PSA) – Comes ready to use with a sticky adhesive, much like traditional plastic tape.
2. Water-Activated Kraft Paper Tape (Gummed Tape) – Requires water to activate the adhesive. When applied, it bonds securely with the cardboard surface, forming a strong, tamper-evident seal.

Both options are sustainable alternatives to plastic tape, offering recyclability and compostability.

Is Kraft Paper Tape Waterproof?

Here’s the key: while standard kraft paper tape is not completely waterproof, water-activated kraft paper tape (gummed tape) provides excellent resistance to moisture once applied. Let’s explore both types:

Pressure-Sensitive Kraft Paper Tape

• Water Resistance: Basic kraft paper tape with pressure-sensitive adhesive may resist light moisture but is not fully waterproof.
• Best For: Dry, indoor environments or parcels unlikely to encounter water exposure.

Water-Activated Kraft Paper Tape (Gummed)

• Water Resistance: After application, the adhesive dries and forms a strong, durable bond that resists moisture. It’s ideal for outdoor shipments or long-distance deliveries where cartons might be exposed to wet conditions.
• Best For: Heavy-duty packaging, e-commerce, exports, and industries where tamper-evidence and security are priorities.

Note: Before application, water-activated kraft paper tape must be kept dry until used, as premature exposure to water will activate the adhesive.

Why Moisture Resistance Matters

In the Australian climate, weather can be unpredictable. Whether you’re sending packages across the city or shipping interstate, your parcels may be exposed to rain or damp storage conditions.

Using kraft paper tape—especially the water-activated type—helps ensure:

• Your packaging stays sealed even if exposed to water.
• Tamper evidence, as opening the package would tear the tape.
• Reduced risk of damaged goods during delivery.

Benefits of Using Kraft Paper Tape

Even beyond its moisture-resistant properties, kraft paper tape offers several advantages over traditional plastic tape:

Environmentally Friendly

Kraft paper tape is biodegradable and recyclable with cardboard, helping your business reduce its environmental footprint.

Professional Finish

Kraft paper tape provides a clean, professional appearance, ideal for businesses wanting to improve their brand image through sustainable packaging.

Customisation Options

Many businesses customise their kraft paper tape with branding, logos, or messages, further enhancing brand recognition.

Tamper Evident

Particularly with water-activated versions, kraft paper tape provides added security by making it obvious if a package has been tampered with.

Should Your Business Switch to Kraft Paper Tape?

If your business operates in sectors like e-commerce, logistics, manufacturing, or wholesale, switching to kraft paper tape makes sense—especially if:

• You’re aiming to improve your sustainability credentials.
• You need strong, reliable seals on parcels.
• You want to meet growing customer expectations for eco-friendly packaging.

For parcels that need water resistance, opt for water-activated kraft paper tape for the best performance. It’s widely used by leading businesses that want secure, environmentally responsible packaging.

So, is kraft paper tape waterproof? While pressure-sensitive kraft paper tape isn’t designed for full water protection, water-activated kraft paper tape provides excellent resistance once applied. It’s the smarter choice for businesses sending packages that might face rain, humidity, or other challenging conditions.

By choosing kraft paper tape, your business supports both environmental responsibility and package security—all while offering a sleek, professional look for your parcels. Ready to switch? It’s a smart move for the planet and your brand.