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Tag Archives: materials

Repap Paper Made From Stones

ogami_repap

Felling trees for the sake of turning them into paper is not only an increasingly unnecessary practice in a digital age, but it’s also one that’s always been sort of a dick move for the planet. So our interest was piqued when we read about Repap. It’s a kind of paper that’s made from stones. Yeah. Stones.

Repap is made up of 80% calcium carbonate (CaCO) and a small percentage, 20%, from non-toxic resins (high intensity polyethylene). The calcium carbonate present in Repap comes from the limestone recovered from caves and used in the construction industry. The Calcium carbonate is reduced to a fine powder and the polyethylene acts as a binder, creating Repap, a resistant and durable, as well as a waterproof paper. A paper that is also soft, smooth, bright white, resistant like a film but without the use of substances derived from petroleum.

To be perfectly honest, that sounds like a great product and if you want to get your hands on some yourself, you can. The link below takes you to a website that sells notebooks called Ogami, that are made from the stuff. Prices start as low as $13.

[ Product Page ] VIA [ Werd ]

Worried About Being Snooped On? Here’s The Tinfoil Hat For Your Home

By David Ponce

You know, the thing about wireless network passwords is that they’re pretty darn secure. Provided you pick something other than “password” or anything equally inane, you’re not going to get hacked. But for some people, that’s just not enough. So some researchers at the Institut Polytechnique of Grenoble have developed a wallpaper that is able to block WiFi signals. It was developed in conjunction with the Centre Technique du Papier (The Technical Paper Center) and features a special pattern of geometric shapes traced in a conductive ink which contains silver particles. This design is effective at blocking some frequencies of electromagnetic radiation, namely that of typical WiFi signals. And if you don’t like the look of the designs, you can either paint it or cover it with your favourite flowered wallpaper or whatever it is you fancy. The rights to this products have been acquired by the Finnish company Ahlstrom and they wish to commercialize it by 2013 for roughly the same price as a regular wallpaper.

[ News Article (In French) ] VIA [ DVice ]

Sugru: The Material That Goes From Silly Putty To Flexible Silicone Overnight

By David Ponce

That title is maybe an oversimplification, or not. Either way, Sugru sounds like a great product. It comes in a sealed bag and when first exposed to air, is the consistency of playdough or silly putty. As time goes by and it cures at room temperature into a tough flexible silicone using the moisture in the air. Working time = 30 mins. Cure time = 24hrs (3-5mm deep). It’s designed to “stick to as many other materials as possible. It forms a strong bond to aluminium, steel, ceramics, glass and other materials including plastics like perspex.”

[It's] resistant from -60°C to + 180°C. It gets hot and cold but it won’t get softer or harder or melt.It is is silicone, so it’s completely waterproof and durable outdoors. It’s easy to clean with soap and water, oh and It’s fine with sea water too! When sugru cures, it’s flexible rather than rigid. Which means that you can repair things that need to be able to move like textiles, cables, or shoes. And once it’s cured, sugru is pretty much like other silicones – durable in the harsh soapy conditions of your washing machine and dishwasher.

So what do you DO with it? Well, watch the video above.

[ Product Page ] VIA [ BoingBoing Gadgets ]