What environmental conditions will Sugru work in?
Sugru is amazingly robust. It can withstand temperatures between -50°C (-58°F) and 180°C (356°F), making it freezerproof, heatproof and dishwasherproof. It's also weatherproof, waterproof, UV-resistant and electrically insulating (up to 24v and under 1 amp). It's easy to clean with soap and water and equally happy in your washing machine and dishwasher. Sugru can also endure the ocean’s salt water. Just don't use it in direct contact with an open flame. That’s not a good idea.
What materials does Sugru bond to?
Sugru sticks permanently to lots of stuff like ceramics, glass, metal, wood, rubber, and most plastics and fabrics.
If you have any further questions, check out the TDS to find out more about Sugru’s adhesion strength.
What materials does Sugru not bond to?
Like most adhesives, Sugru struggles to bond to plastics with certain oily finishes (such as polypropylene and polyethylene) and some powder-coated metals.
If you want to use Sugru as an impression/moulding material, the best release agent we've found is soapy water. It doesn't leave any residue on the Sugru, and is very clean and easy to use. Our users also like to use cling film (Saran Wrap) or something greasy, e.g. petroleum jelly (Vaseline).
Is there something I can do to increase the shelf life?
Yes! Store your unopened single-use packs in the fridge (or freezer) to multiply the number of months left to use them by up to 3 times (you’ll find the use-by date printed at the back of each single-use pack).
Will cured Sugru degrade over time?
Under normal ambient conditions, Sugru does not degrade and will last and last. However, it will degrade if exposed to temperatures higher than 180°C. So we don’t recommend using Sugru in the oven, for example.
Is Sugru resistant to solvents and petrochemicals?
Sugru, like most silicones, is not highly resistant to oils and petrochemicals, as they tend to allow ingress into the material causing it to swell and become soft and less durable, with the potential for particles or residue to release into the fuel.
Sugru may also swell in some solvents and oils, as well as some strong acids and bases. This kind of swelling may affect some of Sugru’s properties such as its strength and adhesion.
Are you able to make transparent Sugru?
We agree, this would be a cool addition to our range, but as the majority of materials that make Sugru special are non-transparent, the end result is non-transparent too. If you need a clear material, craft resin might be something worth considering.
Is Sugru eco-friendly?
A small amount of Sugru can fix and help to prolong the life of many large, complex and disposable items, thereby contributing to the reduction in waste and supporting sustainability. In itself, as a material, Sugru isn’t particularly innovative from an environmental perspective.
- Sugru is a silicone, and the same environmental guides that apply to general household silicones apply to Sugru.
- Sugru is not petrochemical based, but it's not biodegradable.
- Sugru is manufactured using a low-energy, low-heat, mixing process. This may not be the case for its raw ingredients.
- We encourage using the minimum amount of Sugru possible for each job. You can also line up jobs so you can use any remaining product - a little Sugru goes a long way.
- As a company, we do our utmost to operate in the most sustainable way possible. From our raw materials, waste reduction, recycling and energy consumption, we are acutely aware of our impact on the environment and make every effort minimise it.
- We work hard to encourage a culture of repair and maintenance, and inspire a pragmatic approach to problem solving. We believe a simple change of perspective and behaviour will create a more sustainable future.