Sugru Mouldable Glue
Last updated: 4 October 2026
Sugru mouldable glue is a putty you shape by hand that cures into flexible silicone rubber, sticking to whatever you pressed it onto. People use it to fix frayed charging cables, fill gaps, make hooks and add grips. It is now made by tesa, and on 4 October 2026 a pack of three 3.5g sachets in black, white and grey cost £10.98 on Amazon UK.
Buy Sugru on Amazon UK, £10.98
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How Sugru mouldable glue works
Each sachet holds a single use of soft putty. Once you open it, you have about 30 minutes to knead it, press it into place and shape it. After that it starts to firm up.
It cures at room temperature into silicone rubber. According to tesa, the first 3mm takes about 24 hours, and thicker pieces can take up to 48 hours. Once cured it stays slightly flexible, so it can take knocks without cracking.
Because it starts soft, you can mould it into a shape rather than just glue two parts together. That is why it gets used for cable strain relief, bumpers on furniture and custom hooks.
What it sticks to
tesa says Sugru bonds to glass, ceramic, wood, metal and most plastics. The Amazon listing adds plaster and fabrics. It does not stick well to oily plastics such as polyethylene, polypropylene and Teflon, so it will not hold on a non-stick pan or many food tubs.
Cured Sugru is waterproof and handles temperatures from minus 40°C to 180°C. tesa rates its UV resistance as equal to five years of outdoor weather, so it can go on garden tools and outdoor fittings.
Key facts
- Price: £10.98 on Amazon UK on 4 October 2026, sold by Metler UK and dispatched by Amazon
- In the pack: three 3.5g single-use sachets, one each in black, white and grey
- Working time: about 30 minutes after opening
- Curing time: about 24 hours for the first 3mm
- Temperature range: minus 40°C to 180°C once cured
- Holds: up to 2kg, according to the Amazon listing
- Electrical use: insulating, for low-voltage repairs up to 24 volts only
- Shelf life: 22 months unopened at room temperature
- Rating: 4.4 out of 5 from 9,080 ratings on Amazon UK
Who it suits
- Anyone with a fraying phone cable: a collar of Sugru supports the end of the cable, where most chargers split.
- New homeowners: it fixes the small things that come with a house, like gaps, loose trim and wobbly handles.
- Makers and tinkerers: it sets into any shape you can model by hand.
Setting up a first home? Our new home gift guide has more presents for people who have just moved in.
The limits
Each sachet is single use, so you need to plan the repair before you open it. Leftover putty sets within about half an hour and is wasted.
It is not for food contact, so keep it away from the inside of cups, plates and lunch boxes. It is also only for low-voltage electronics up to 24 volts, never for mains wiring.
Unopened packs keep for 22 months from manufacture. tesa says chilling them in the fridge or freezer extends that, which helps if you buy a bigger pack.
Where to buy it in the UK
Amazon UK sold the black, white and grey three-pack for £10.98, sold by Metler UK and dispatched by Amazon. The Sugru pages on tesa's website cover how to use it and show repairs people have made.
A repair keeps a cable or a handle out of the bin for longer. Our carbon conscious gift guide collects more presents chosen for their environmental credentials.
FAQs
How much does Sugru cost?
A pack of three 3.5g sachets in black, white and grey was £10.98 on Amazon UK on 4 October 2026.
How long does Sugru take to set?
You have about 30 minutes to shape it after opening. It then takes about 24 hours to cure the first 3mm, and up to 48 hours for thicker pieces.
Is Sugru waterproof?
Yes. Once cured it is waterproof and works outdoors, and tesa says it resists UV for the equivalent of five years.
Can you use Sugru on electrical cables?
Yes, for low-voltage cables such as phone chargers. tesa says it is only suitable for repairs up to 24 volts, so never use it on mains wiring.
Does Sugru go off?
Unopened packs last 22 months from manufacture at room temperature. Keeping them in the fridge or freezer extends that.
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