packing tape
Packing Tape — Clear, Brown & Heavy-Duty Box Sealing Tape for Shipping & Moving
Packing tape — also called box sealing tape, shipping tape, or carton sealing tape — is the adhesive tape used to seal corrugated boxes for shipping, moving, and storage. The right packing tape creates a secure, tamper-evident seal that holds the box closed through the mechanical stress of conveyor belts, stacking, and transit handling; protects the box seam from moisture that would weaken the corrugated structure; and maintains its bond across the temperature range encountered in shipping vehicles, warehouses, and storage facilities. A box sealed with inadequate tape — too thin, too narrow, or with insufficient adhesive — is a liability: it may open in transit, exposing the contents to damage, loss, and the cost of a customer service claim.
Our packing tape collection covers the full range of box sealing applications: standard clear tape for everyday shipping, brown kraft tape for a natural appearance, heavy-duty reinforced tape for heavy boxes, water-activated gummed tape for tamper-evident sealing, and printed security tape for high-value shipment protection. Available in standard 2" (48mm) width and wide 3" (72mm) width, in roll lengths from 55 yards (standard) to 110 yards (value) and 330 yards (industrial).
Packing Tape Types in This Collection
- Clear Packing Tape (2" × 55 yards): The standard box sealing tape for e-commerce and office shipping. A clear polypropylene or BOPP (biaxially oriented polypropylene) film with acrylic adhesive. The clear film allows box labels and markings to remain visible through the tape. Tensile strength: 20–30 lbs per inch width. The most widely used packing tape format for standard corrugated box sealing.
- Brown Kraft Packing Tape (2" × 55 yards): Same construction as clear tape but with a brown-tinted film that matches the natural color of corrugated boxes. The brown tape creates a cleaner, more uniform appearance on kraft corrugated boxes by blending with the box color rather than creating a visible clear stripe across the box seam.
- Heavy-Duty Packing Tape (2" × 55 yards, 3.1–3.5 mil): Thicker tape (3.1–3.5 mil vs. 1.9–2.2 mil for standard tape) with higher tensile strength (35–45 lbs per inch) for sealing heavy boxes (30–70 lbs), boxes with rough or recycled corrugated surfaces, and shipments that will be handled roughly. The professional standard for warehouse and fulfillment center box sealing.
- Water-Activated Gummed Tape (WAT / Kraft Tape): A kraft paper tape with a water-activated starch adhesive that bonds to the corrugated box surface at the fiber level — creating a seal that is significantly stronger than pressure-sensitive tape and cannot be removed without visibly damaging the box. The standard for tamper-evident sealing of high-value shipments, archival box sealing, and any application where the integrity of the seal must be verifiable. Requires a water-activated tape dispenser for efficient application.
- Reinforced Filament Tape: Packing tape with fiberglass filament strands embedded in the film for extreme tensile strength (100–200 lbs per inch). Used for bundling heavy items, reinforcing box seams on very heavy boxes, and securing palletized loads. Not a standard box sealing tape — used for specific heavy-duty reinforcement applications.
- Printed Security Tape: Tape printed with a repeating security message ("VOID", "OPENED", "SECURITY SEAL") that leaves a permanent residue pattern on the box surface when the tape is removed, providing visible evidence of tampering. Used for high-value shipments, pharmaceutical packaging, and any application where tamper evidence is required.
- Wide Packing Tape (3" / 72mm): Wider tape for sealing large boxes, covering wide box seams, and applications where a single strip of standard 2" tape does not provide adequate coverage. The 3" width is particularly effective for sealing the bottom seam of heavy boxes where the wider coverage distributes the load across a larger adhesive area.
Packing Tape Specifications
- Thickness (Mil): Standard packing tape: 1.9–2.2 mil. Heavy-duty: 3.1–3.5 mil. Thicker tape is more resistant to tearing during application and provides greater puncture resistance in transit.
- Tensile Strength: Standard tape: 20–30 lbs/inch. Heavy-duty: 35–45 lbs/inch. Tensile strength determines how much force the tape can withstand before tearing — critical for heavy boxes where the tape must support the box weight during handling.
- Adhesion: Measured in oz/inch of peel force. Standard acrylic adhesive: 40–60 oz/inch. High-tack adhesive: 70–90 oz/inch. Higher adhesion is required for recycled corrugated (rougher surface), cold-temperature applications, and boxes that will be stored for extended periods before shipping.
- Roll Length: Standard: 55 yards (50m). Value: 110 yards (100m). Industrial: 330 yards (300m). Longer rolls reduce roll changes in high-volume operations.
Proper Box Sealing Technique
The H-tape method is the professional standard for box sealing: apply one strip of tape along the center seam of the box top (or bottom), then apply one strip perpendicular to the seam on each side, forming an H pattern. This method seals the center seam and reinforces the corners where the seam meets the box edges — the points of greatest stress during handling. For heavy boxes (over 30 lbs), apply two parallel strips along the center seam for additional strength. Always seal both the top and bottom seams — an unsealed bottom seam is the most common cause of box failure during transit.
Frequently Asked Questions About Packing Tape
Q: How much packing tape do I need to seal a box?
A: A standard box requires approximately 3–4 feet (90–120cm) of tape for the H-tape method (one strip across the seam plus two perpendicular strips). A 55-yard roll seals approximately 40–60 standard boxes. For high-volume shipping operations, 110-yard or 330-yard rolls reduce roll changes and lower per-yard cost by 20–40%.
Q: What is the difference between clear and brown packing tape?
A: Clear and brown packing tape have identical construction and performance — the only difference is the film color. Clear tape allows box markings and labels to remain visible through the tape. Brown tape blends with the natural color of kraft corrugated boxes for a cleaner appearance. Choose based on aesthetic preference — both provide equivalent sealing performance.
Q: Is water-activated tape stronger than regular packing tape?
A: Yes. Water-activated gummed tape (WAT) bonds to the corrugated box surface at the fiber level, creating a seal that is 2–3× stronger than pressure-sensitive tape and cannot be removed without visibly damaging the box. WAT is the standard for high-value shipments, archival storage, and tamper-evident sealing. The tradeoff is that WAT requires a water-activated tape dispenser and takes 15–30 seconds to set — slower than pressure-sensitive tape for high-volume operations.
Q: Can packing tape be used in cold temperatures?
A: Standard acrylic adhesive packing tape maintains adequate adhesion at temperatures down to approximately 32°F (0°C). For cold-chain shipping, refrigerated storage, and winter outdoor applications, use cold-temperature packing tape with a rubber-based or high-tack acrylic adhesive rated for temperatures down to -20°F (-29°C). Applying tape to cold surfaces reduces initial adhesion — warm the box surface to room temperature before taping when possible.
