|This article needs additional citations for verification. (March 2016) (Learn how and when to remove this template message)|
Sugru is malleable when removed from its airtight, moisture-proof packaging, retains its plasticity for thirty minutes, and is self-curing at room temperature in approximately 24 hours. The material adheres to aluminium, steel, copper, ceramics, glass, fabric, brass, leather, plywood, and other materials, including ABS plastics.
When cured, Sugru has a 'soft touch' or slightly flexible, grippable texture similar to features commonly found in soft overmolds. It is waterproof and dishwasher-safe, and the material is thermally insulating, with a service temperature range between −50 and 180 °C (223 and 453 K). Sugru is not resistant to isopropyl alcohol. While early versions of the product had a short shelf-life, as of 2014, it was being advertised as staying fresh for 13 months from the date it was made. According to the product packaging, if kept in a refrigerator, the shelf-life is tripled.
The idea for Sugru was developed by Jane Ní Dhulchaointigh from Kilkenny, Ireland. Ní Dhulchaointigh studied product design as a post-graduate research student at the Royal College of Art where she conceived the idea for the substance in 2003 while using mixtures of standard silicone sealants and sawdust in her work.
After receiving business grants, Ní Dhulchaointigh worked with retired scientists from Dow Corning and a silicone expert over a seven-year period at the materials department at Queen Mary, University of London to develop a silicone elastomer that was moldable, self-adhesive and self-curing. Her goal was to enable people "to easily and affordably repair, improve or customize things they already own".
In May 2015, the company launched a campaign to raise £1 million (US$1645468.57) on the crowdfunding site CrowdCube. The company reached its £1 million funding target in just four days and continued on to raise well over £3 million.
The formulation of Sugru contains 30% silicone (polysiloxane) 20–50% talc, and the remaining additives including: methyltris (methylethylketoxime) silane, γ-aminopropyltriethoxysilane, and dioctyltin dilaurate. The company claims its formulation can be varied to offer different levels of consistency, plasticity, softness, resiliency, surface adhesion, modulus and abrasion resistance, setting time, density, and ability to float.
The company claims that Sugru is classified under EU Health & Safety regulations[clarification needed] as "not dangerous". However, one report exists that it can cause an allergic reaction in uncured form.
- "Sugru Q&A". Retrieved 14 December 2014.
- "FORMEROL F.10 / sugru Preliminary technical data sheet" (PDF). Sugru.com, October 2009.
- Jason Fitzpatrick. "Sugru Moldable Silicone Is Perfect for DIY Ideas and Repairs". Lifehacker.com. Retrieved 2016-07-29.
- Sorrel, Charlie (1 December 2009). "Sugru, An Amazing Silicon Modeling Clay for Makers and Hackers". Wired.
- "Is sugru resistant to oil / petrol / solvents?". Web.archive.org. Retrieved 2016-07-29.
- "About Sugru". Sugru.com.
- "Sugru: Our story". Sugru.com.
- "Kilkenny woman invents best thing since blu-Tack and Sellotape". Kilkenny People. 25 January 2010. Retrieved 6 February 2010.
- "Wired meets the woman behind Sugru". Wired, Charlie Burton, 6 May 2010.
- Una Mullally (17 January 2010). "Irish woman invents Sugru, 'the most useful item since Sellotape'". Sunday Tribune. Retrieved 6 February 2010.
- "FormFormForm gets ready to launch the next big consumer adhesive brand". Responsesource.com, 11 August 2009.
- "Sugru: A gripping tale of struggle and success". CNN, Nick Glass and Tom Levitt, 26 October 2012. 25 October 2012.
- "Sticky putty Sugru crowdfunds in bid to rival Sellotape and Blu-Tack worldwide". The Telegraph, Rebecca Burn-Callander, 25 May 2015. 25 May 2015.
- "Sugru overfunds within its first week". CrowdCube, Becca Lewis, 5 June 2015. 5 June 2015.
- "Sugru raising £1,000,000 investment on Crowdcube. Capital At Risk.". CrowdCube.
- "FORMEROLsugru_MSDS_Oct09.pdf" (PDF). Sugru. December 2013. p. 1. Retrieved 9 December 2013.
- "About". sugru.com. Retrieved 22 September 2015.
- "Moderately severe systemic allergic reaction". GetSatisfaction. 27 June 2010. Archived from the original on 1 August 2010. Retrieved 22 September 2015.