Different Types of Packing Tape and When to Use Them
Choosing packing tape is not simply a matter of grabbing the widest or strongest-looking roll. Tape performance depends on the carton surface, package weight, storage and shipping conditions, application method, production volume, and how long the seal needs to remain secure.
For corrugated packaging, the most common choices include pressure-sensitive carton sealing tape, water-activated tape, and reinforced or filament tapes. Each solves a different packaging problem.
If you already know your carton and operating conditions, our Packaging Tape Selector provides a more detailed path to choosing the right tape.
1. Pressure-Sensitive Carton Sealing Tape
Pressure-sensitive tape bonds to the carton when application pressure brings the adhesive into contact with the corrugated surface. It does not require water, heat, or another activation step, making it one of the most common options for manual and automated carton sealing.
Two major adhesive types used for carton sealing are hot melt and acrylic.
Hot Melt Carton Sealing Tape
Hot melt tape typically uses a synthetic-rubber-based pressure-sensitive adhesive designed to provide fast initial grab and strong holding power on corrugated cartons. Hot melt formulations are commonly used in high-speed carton sealing and general shipping applications. 3M also identifies strong quick-stick performance and compatibility with recycled corrugate as common characteristics of its hot-melt packaging tapes.
Hot melt can be a good option when:
- Fast initial adhesion is important.
- Cartons move quickly through packing or sealing operations.
- The tape is being applied manually or through compatible case-sealing equipment.
- The corrugated surface and operating temperature fall within the tape manufacturer's specifications.
Do not choose hot melt based only on carton weight. Adhesive formulation, backing strength, recycled content, surface condition, temperature, and closure method all affect performance.
Acrylic Carton Sealing Tape
Acrylic tape uses a pressure-sensitive acrylic adhesive. Depending on the formulation, acrylic carton sealing tapes may provide broad temperature performance, aging resistance, clarity, and resistance to yellowing. Specific performance varies by product.
Acrylic tape may be worth considering when:
- Packages will experience a wider range of storage temperatures.
- Longer-term seal appearance or aging performance matters.
- Clear tape is being used on printed or white cartons.
- The application calls for the performance characteristics of a specific acrylic formulation.
2. Water-Activated Tape
Water-activated tape, often called WAT or gummed tape, uses an adhesive that becomes tacky when moistened. It is commonly applied with a dispenser that wets the adhesive as the tape is dispensed.
When applied to corrugated cartons, water-activated tape forms a bond with the paper surface. This can create a visibly tamper-evident closure because removing the tape may damage the carton fibers or tape.
Water-activated tape can be useful for:
- E-commerce and parcel shipping.
- Cartons where a tamper-evident closure is desirable.
- Operations using compatible manual or electronic WAT dispensers.
- Applications where paper-based carton sealing is preferred.
Water-activated tapes are available in both non-reinforced and reinforced constructions. Reinforced grades incorporate reinforcing fibers for applications requiring additional strength.
Explore reinforced water-activated tape for heavier or more demanding carton-sealing applications.
3. Filament and Strapping Tape
Filament and strapping tapes are high-strength pressure-sensitive tapes reinforced with filaments or other high-strength materials. Unlike ordinary carton sealing tape, they are commonly used when the tape needs to reinforce, bundle, unitize, or resist higher tensile loads.
Typical applications include:
- Bundling products or components.
- Reinforcing cartons.
- Securing appliance parts or other components during shipment.
- Unitizing products where tape is appropriate for the load.
- Closing or reinforcing demanding packages.
Not every filament tape has the same reinforcement pattern or tensile strength. Tape width, backing, adhesive, filament construction, and application requirements should all be considered.
Browse industrial strapping and filament tape for available constructions.
Hot Melt vs. Acrylic vs. Water-Activated Tape
| Factor | Hot Melt | Acrylic | Water-Activated |
|---|---|---|---|
| Activation | Pressure-sensitive | Pressure-sensitive | Activated with water |
| Common strength | Fast initial grab and carton sealing | Broad environmental and aging performance depending on formulation | Strong bond to corrugated paper surface |
| Application | Hand dispenser or case sealer | Hand dispenser or case sealer | Water-activated tape dispenser |
| Tamper evidence | Depends on tape and closure | Depends on tape and closure | Can provide a visibly tamper-evident fiber bond |
| Best choice depends on | Carton, temperature, application speed, adhesive requirements | Carton, temperature, aging and environmental requirements | Carton construction, closure requirements, dispenser, package weight |
How to Choose the Right Packing Tape
Start with the carton and the conditions surrounding it. The same tape will not perform equally well on every corrugated surface or in every shipping environment.
Consider:
- Carton weight: Heavier or overfilled cartons may require higher-strength tape or a different closure system.
- Corrugated surface: Recycled content, printing, coatings, dust, and surface condition can affect adhesion.
- Temperature: Application and storage temperatures should fall within the tape manufacturer's recommended range.
- Shipping environment: Consider handling, vibration, storage duration, humidity, and temperature changes.
- Application method: Hand dispensers, case sealers, and water-activated tape dispensers require compatible tape.
- Production volume: Higher-volume operations may benefit from tape and equipment selected together as a system.
- Security requirements: Water-activated or specialty security tapes may be useful where visible evidence of package opening is important.
For a guided comparison based on these factors, use the Packaging Tape Selector.
The Bottom Line
Hot melt, acrylic, water-activated, and filament tapes are designed for different packaging applications. Hot melt and acrylic tapes provide pressure-sensitive carton sealing with different adhesive characteristics. Water-activated tape bonds to the corrugated paper surface after activation with water. Filament and strapping tapes provide reinforcement for bundling and higher-strength applications.
The right tape depends on the carton, package weight, shipping environment, application equipment, and the performance required from the closure.
Need Help Choosing Packaging Tape?
Use our Packaging Tape Selector to compare tape types and applications, or Contact Packaging HERO if you need help matching tape to your cartons, equipment, and shipping environment.
Frequently Asked Questions
What type of tape is best for sealing shipping boxes?
There is no single best tape for every shipping carton. Hot melt, acrylic, and water-activated tapes can all be appropriate depending on carton weight, corrugated surface, temperature, shipping environment, application equipment, and closure requirements.
What is the difference between hot melt and acrylic packing tape?
Both are pressure-sensitive carton sealing tapes, but they use different adhesive systems. Hot melt tape is often selected for fast initial grab and general carton sealing, while acrylic formulations may be selected for characteristics such as temperature performance, aging resistance, clarity, or resistance to yellowing. Performance varies by product.
What is water-activated tape used for?
Water-activated tape is used to seal corrugated cartons. Once moistened, its adhesive bonds to the paper surface of the carton. It is commonly used in e-commerce, parcel shipping, and applications where a visibly tamper-evident carton closure is desirable.
Is filament tape the same as packing tape?
Filament tape is a type of high-strength packaging tape reinforced with filaments. It is commonly used for bundling, reinforcing, and demanding packaging applications rather than as a direct replacement for ordinary carton sealing tape in every shipment.
Does recycled corrugated require a different packing tape?
It can. Corrugated surface characteristics, including recycled content, can affect tape adhesion. Select a tape whose manufacturer specifications support the carton surface and environmental conditions of the application rather than choosing by adhesive type alone.