Silly Putty is a silicone plastic "clay", marketed as a toy for children by Binney & Smith Inc. It is known as Potty Putty in the UK. Another name is Tricky Putty. It was originally created as a scientific accident on the way to solving another problem: finding a rubber substitute for the United States during World War II.

Description

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Silly Putty is sold as a 0.47 oz (13 g) piece of plastic clay inside an egg-shaped plastic container. It is an example of an inorganic polymer, noted for its many unusual characteristics. When pressed on comics pages or other newspaper media, the loose ink transfers to the Silly Putty, which is then able to be stretched out, a source of amusement for many children. It bounces, revealing its rubber roots, it breaks when given a sharp blow, it can flow like a liquid when it is slowly stretched, and will "melt" into a puddle over a long enough period of time.

These unusual flow characteristics occur because Silly Putty is a viscoelastic liquid. Viscoelasticity is a type of non-Newtonian flow, and indicates that the material will act as a viscous liquid over a long time period, but will act as an elastic solid over a short time period. Silly Putty has sometimes been characterized as a dilatant fluid; however according to the science of rheology this is not strictly correct; it is more accurate to characterize it as a viscoelastic liquid. Silly Putty is primarily composed of the polymer known as polydimethylsiloxane (PDMS), which is known for its dramatic viscoelastic character.

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I JUST WANT TO EAT SILLY PUTTY + I HATE U (insider)
evalong96 (Eva Long) Sat, 12 Dec 2009 03:06:32 -0000
I JUST WANT TO EAT SILLY PUTTY + I HATE U (insider)
#igrewupon slinkies and silly putty
miszELLiE (thats MISS to you) Sat, 12 Dec 2009 02:57:03 -0000
#igrewupon slinkies and silly putty
Whats brain putty? Its what surgens uses to patch holes in skulls. Its like silly putty for your head!
gma93 (Gaby Marshall) Sat, 12 Dec 2009 01:44:56 -0000
Whats brain putty? Its what surgens uses to patch holes in skulls. Its like silly putty for your head!
Playing with silly putty...what an awesome Friday night
tommy_tom12 (Tom Auletta ) Sat, 12 Dec 2009 01:28:59 -0000
Playing with silly putty...what an awesome Friday night
Fighting with ali over silly putty.
karlatheacara (Karla ) Sat, 12 Dec 2009 01:13:24 -0000
Fighting with ali over silly putty.
after many years of research, i have come to the conclusion that cameron diaz's face is made of silly putty.
magfag (margarita ramirez) Sat, 12 Dec 2009 01:03:56 -0000
after many years of research, i have come to the conclusion that cameron diaz's face is made of silly putty.

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