Walk into any stationery shop or browse a packaging supplier and you'll find more tape options than you probably expected. Brown tape, clear tape, paper tape, reinforced tape, fragile tape. It's not obvious from the outside which one is right for which job, and buying the wrong type costs you more than the tape itself when boxes fail in transit.
This guide breaks down the main types of packaging tape available in the UK, what each one is used for, and how to work out which is right for what you're sending.
Does the type of packaging tape actually matter?
Yes, more than most people think. The tape holding a cardboard box together is the only thing standing between the contents and whatever the box goes through in sorting, stacking and transit. A box sealed with the wrong tape, or taped incorrectly even with the right tape, will fail under normal postal and courier handling. That means damaged goods, refunds, complaints, and the cost of reshipping.
The good news is that once you know what you're sealing and how heavy it is, picking the right tape is straightforward.
Brown parcel tape
Brown parcel tape is the most widely used packaging tape in the UK. It's a polypropylene film tape with an acrylic adhesive, available in widths of 48mm and 75mm and in rolls of varying lengths. The adhesive bonds quickly to corrugated cardboard surfaces and holds well across a wide temperature range, which matters for parcels moving through cold courier warehouses and warm delivery vans.
The 48mm width is suitable for most standard e-commerce boxes. The 75mm width gives more coverage per strip and is better suited to heavier boxes, where a wider bond line across the flaps reduces the risk of the seal failing under the weight of the contents.
Brown tape is the practical default for the majority of parcel senders. It's cost-effective, available in bulk, and does the job reliably on standard corrugated boxes. The main limitation is that it is not transparent, which means any printing on the box beneath the tape is obscured. For most shipping applications this doesn't matter at all, but it's worth knowing if you're taping over branding or address areas.
Clear packaging tape
Clear tape is made from the same polypropylene film as brown tape but without the pigment. It performs identically in terms of adhesion and holding strength at equivalent thicknesses. The difference is purely visual: clear tape does not change the appearance of the box surface beneath it.
This makes clear tape the better choice when appearance matters. Branded boxes where you don't want to obscure the print, white boxes, kraft boxes with visible design, or any packaging where the finished look is part of the product experience. Clear tape also makes it easier to see whether a seal has been tampered with, which is relevant for higher-value shipments.
Clear tape is slightly more expensive per roll than brown at equivalent specifications, but the difference is small. For most businesses sending any volume of parcels, it comes down to whether the box appearance matters to your customers. If it does, use clear. If not, brown is fine.
Brown parcel tape vs clear tape: which should you use?
The functional performance is the same. The decision is about aesthetics. Plain brown boxes going to customers who care about what's inside rather than the packaging itself: brown tape. Branded or printed boxes where the finish matters: clear tape. Kraft paper packaging with a visible design: clear tape. Plain white mailer boxes: either works, though clear keeps the box looking cleaner.
If you're running a business and want a consistent look across all your outgoing parcels, picking one and sticking to it is more important than which one you pick.
Paper kraft tape
Kraft tape is made from paper rather than polypropylene film. It comes in two forms: self-adhesive with a peel backing, and water-activated, which requires a damp sponge or dispenser to activate the adhesive before application.
The main reason to use kraft tape is sustainability. It's fully recyclable alongside cardboard and paper, which means a box sealed with kraft tape can go straight in the kerbside recycling bin without needing to strip the tape off first. Polypropylene tape should be removed before cardboard recycling in theory, though in practice most UK recycling facilities handle it during processing. Kraft tape removes this ambiguity entirely.
Water-activated kraft tape has a significant practical advantage beyond the eco credentials: the adhesive creates a fibre bond with the surface of the corrugated board when wetted, meaning it is genuinely difficult to remove cleanly without visibly damaging the box. This makes it a strong choice for high-value shipments or anything where tamper evidence matters.
The tradeoff is speed. Water-activated tape requires a dispenser and a damp surface to work with, which adds a step to the packing process. For businesses with high packing volumes, this slows things down compared to a peel-and-stick roll. Self-adhesive kraft tape avoids this but does not have the same fibre-bonding properties as the water-activated version.
If you're a business that wants recyclable packaging end to end, kraft tape is the obvious choice alongside kraft paper void fill and corrugated boxes. It looks clean, performs well, and removes the plastic from your packaging entirely.
Fragile tape and warning tape
Fragile tape is a standard polypropylene tape printed with "FRAGILE" in repeated text. It serves two purposes: sealing the box and signalling to handlers that the contents need careful treatment.
Whether fragile tape actually results in more careful handling in a courier or postal environment is debatable. Automated sorting systems don't read labels, and in busy warehouses fragile warnings are not always acted on. That said, it does make a difference at the margins, particularly for last-mile delivery where a human is handling the parcel. It also makes it clearly visible to the recipient that you took care in packing, which matters for customer perception.
Fragile tape is worth using for genuinely breakable items shipped in cardboard boxes. It is not a substitute for proper internal packaging: void fill, bubble wrap, and a correctly sized box matter far more than the tape on the outside. Use it as a complement to good packing, not a replacement for it.
Specialist and reinforced tape
Beyond the standard options there are a few specialist tape types worth knowing about.
Reinforced filament tape
A tape embedded with fibreglass filaments running along its length. The filaments make it very difficult to tear by hand and give it significantly higher tensile strength than standard polypropylene tape. Used for heavy-duty applications: securing pallets, reinforcing heavy boxes, bundling items together for transit, and sealing boxes containing items heavy enough that standard tape would be at risk of failing. Not needed for standard e-commerce parcel weights, but useful for anyone shipping heavy goods.
Double-sided tape
Not a sealing tape but worth mentioning in context. Double-sided tape is used in packaging for securing tissue paper, attaching thank-you cards or inserts inside a box, and closing folded tissue or paper wrap neatly. It's a finishing detail rather than a structural one.
Coloured tape
Available in a range of colours and used primarily for warehouse organisation, identifying box contents by category, or adding a branding element to packaging. Functionally the same as standard polypropylene tape.
What tape to use for boxes: a practical summary
To make this straightforward, here is a quick guide by scenario:
- Standard brown or white cardboard box, non-fragile contents: brown tape at 48mm for lighter boxes, 75mm for heavier ones
- Branded, printed or premium-look box: clear tape at 48mm or 75mm depending on weight
- Eco or plastic-free packaging: self-adhesive or water-activated kraft paper tape
- Fragile or breakable contents: fragile tape to seal, with appropriate internal cushioning
- Heavy boxes or pallet securing: reinforced filament tape
- Finishing inserts or tissue paper inside a box: double-sided tape
How to tape a box properly
The best tape in the world won't help if the box is sealed badly. A few things that make a real difference:
Use the H-tape method on both the base and the top of the box. This means one strip of tape running across the centre join of the flaps, and one strip down each side seam where the flaps meet the box wall. The H pattern distributes stress across all four seams rather than relying on a single strip across the centre, which is the most common failure point.
Make sure the tape extends at least 50mm onto the box wall on each side of the flap join. Tape that only covers the flap itself, without bonding to the box wall below, peels away under the weight of the contents when the box is lifted.
Apply tape to a clean, dry surface. Dust, moisture, and grease all reduce adhesion. If you're sealing boxes in a cold or damp environment, using a tape rated for low-temperature adhesion is worth considering for high volumes.
Don't stretch the tape when applying it. Stretched tape contracts slightly as it settles and can pull the flaps apart over time, particularly on heavier boxes.
What width tape do you need?
For most standard e-commerce parcels, 48mm is perfectly adequate. It covers the flap join comfortably and bonds well to corrugated board. For heavier boxes, anything over about 10kg, or boxes with a long top flap join, 75mm tape gives you a wider bond and more resistance to the seal opening under load. If you're unsure, 75mm tape works on lighter boxes too and gives you a margin of confidence without any downside beyond a slightly higher cost per roll.
You can browse our full range of packaging tape on our packaging tape page, including brown, clear and kraft options in both 48mm and 75mm widths. If you need tape alongside boxes, mailing bags or labels, the full range is available across our packaging collections.
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