Our Pipe Sealant Tape is Practically and Legally Watertight

Date: 05/09/25

Here at Sleeve It, we’re proud to say that our 369 pipe sealant tape is watertight. But what does ‘watertight’ actually mean in practice? Look it up in the dictionary, and you’ll find that watertight has two different meanings, one literal (it means what it says) and one figurative (using one thing to describe another). 369 pipe sealant tape more than matches both of these definitions. 

Watertight (adjective) – impermeable to water, tightly sealed so that no water can get in or out.

369 pipe sealant tape creates a completely impermeable seal for water pipe installation and repair, sealing joints and junctions, fixing leaks and restoring the pipework to its full functional capacity once more. 

Pipe sealant tape is just as effective at keeping water out too, protecting wires and cables from moisture ingress that could cause damage and lead to short circuits, power failures and even electrical fires.

It achieves this by combining specially cured rubber with a thin layer of silicone gel to create a self-fusing tape that requires no adhesive and leaves no residue when removed. Pipe sealant tape sticks to itself when stretched, forming an instant repair and creating a permanent bond in less than 24 hours.

With a tensile strength of 700psi, 300% elongation ability, tear strength of 60ppi and ShoreA hardness, with 369 pipe sealant tape, you can be sure of a lasting and watertight seal in a wide range of situations and circumstances.

But that’s not the only way that 369 pipe sealant tape can be considered watertight…

Watertight (adjective) – without weakness or flaws, carefully prepared or constructed to be faultless and unchallengeable, allowing no doubts 

369 pipe sealant tape is not only literally watertight, it is also figuratively watertight too, creating seals and repairs without weak spots or flaws, which you can trust completely without a doubt. 

This is essential when dealing with water, as even the smallest leak can cause extensive damage to the surrounding infrastructure. It is even more important when the pipes in question contain other, more damaging, liquids, such as strong acids and alkalis, or toxic or corrosive waste products. 

You need to be sure your repair is faultless, and with 369 pipe sealant tape, you will be.

369 pipe sealant tape is legally watertight too, complying with a wide range of applicable standards and regulations, including:

• A-A-59163 

• CPSIA – Consumer Product Safety Improvement Act

• PROP 65: Safe Drinking Water and Toxic Enforcement Act 

• NEMA Class H Insulator

• RoHS Restriction of Hazardous Substances Directive 2022/95/EC

• REACH: Registration, Evaluation, Authorisation and Restriction of Chemicals

• CPSC ASTM F963-08 Flammability Testing 

This means that your pipework installation not only gives you the complete peace of mind of a watertight seal, but also provides watertight cover with both the regulatory bodies and your insurance company. By using 369 pipe sealant tape for your installation or repair work, you can clearly demonstrate that the job has been completed to the highest possible standards, using the most appropriate materials, and in the safest possible way.

To find out more about the watertight properties of 369 pipe sealant tape, get in touch with Sleeve It today by completing our online contact form or emailing enquiries@sleeveit.co.uk. You can order pipe sealant tape in in 11 metre rolls in either 0.5mm or 0.8mm thickness, in 25.4mm, 38.1mm or 50.8mm widths, with a choice of either red or black. Order online by 3pm for next working day UK delivery or ask about dependable deliveries worldwide.

369 pipe sealant tape – the very definition of watertight for all kinds of pipework and electrical installations and repairs.

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