Do you sell these kits without the adhesive lining?

At the moment we do not offer heat shrink tubing kits without adhesive lining.

Can a hair dryer be used to heat the tubes?

Thank you for your question. We recommend using a heat gun as a heat source.

what would be the correct size for 6242Y grade 2.5mm twin and earth cable? the cable measure 10mm x 5mm

If you are electrical engineer by trade your ansawer to your question should be why. Why are you using this shrink wrap on any type of twin & earth. If its been cut or broken then unless you have good knowledge of ac cabling and I presume you're competently qualified in this I would not suggest using it in any ac environment. By way of your disciption, if there is some kind of brake or join in two wires (cables) you would normally solder the joints and shrink wrap the joint to seal and secure. If in case of ac use only a joiner like waggo ect which is rated appropriately, if in doughty with any ac diy activity seek qualified abilities, you may only regret it soon or later if you don't. A bodge can kill😕🤔

Is this suitable for use in an aquarium?

It’s plastic so pretty inert. It depends on what you want to do with it.

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🔥 Seal your cables like a boss—no leaks, no fuss, just flawless connections!

PLUG PLAY - Precut 1.75-inch lengths make installation a breeze—just slide on, heat, and secure in seconds.
SIZE MATTERS - 275 pieces across 7 popular diameters cover all your wiring needs—from delicate cables to heavy-duty repairs.
BUILT TO LAST - Dual-wall construction offers abrasion resistance on the outside and strain relief plus waterproofing inside.
SEAL IT TIGHT - Adhesive lining melts on heat, creating a waterproof, long-lasting bond that guards against moisture and corrosion.
SHRINK LIKE A PRO - 3:1 ratio ensures tubing shrinks to a third, delivering a snug, professional-grade fit every time.

The Wirefy Heat Shrink Tubing Kit features a superior 3:1 shrink ratio and adhesive-lined dual-wall tubing for waterproof, abrasion-resistant cable protection. With 275 precut pieces in 7 sizes, it’s engineered for marine, automotive, and industrial use, delivering professional-grade insulation and strain relief in seconds.

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₲338270

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Manufacturer	Wirefy
Part Number	Wirefy-DWT-275
Product Dimensions	19.51 x 13 x 3.51 cm; 20 g
Item model number	Wirefy-DWT-275
Size	Length: 1.75"
Colour	Black, Red, White, Clear, Blue
Style	Black, Red, White, Clear, Blue
Material	Polyolefin
Voltage	600 Volts (AC)
Installation method	Self-Adhesive
Item Package Quantity	275
Measurement System	English
Certification	UL
Usage	Marine and automotive wiring, outdoor and home repairs, RC hobbies, charging cable repairs
Batteries included?	No
Batteries Required?	No
Item Weight	20 g

Wirefy Heat Shrink Tubing Kit - Heatshrink Sleeving Kit - 3:1 Ratio Adhesive Lined - Marine Grade Shrink Wrap - Wire Cable Repair Sleeve - Automotive Industrial Tubing - 275 PCS

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