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Homemade Silly Putty

CmdrTaco posted about 11 years ago | from the raising-copyright-questions dept.

It's funny.  Laugh. 225

kinema writes "Have you ever wanted a ball of Silly Putty as big as your head? Now you can make it at home. The University of Minnesota's Chemistry Department has instructions on how to make it on their website." Isn't silly putty a copyright circumvention tool? This should be regulated before it gets out of hand.

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Dont Joke (2, Interesting)

nurb432 (527695) | about 11 years ago | (#6957050)

It IS copyrighted.. so that page COULD be shut down by ( i think ) hasbro..

Gotta love the society we live in now..

Re:Dont Joke (2, Funny)

pheared (446683) | about 11 years ago | (#6957067)

No no. It's a copyright circumvention tool.

Try using Silly Putty some time, and press it ontop of a newspaper.

Re:Dont Joke (5, Insightful)

MartinG (52587) | about 11 years ago | (#6957083)

"silly putty" can't be copyrighted, because it is not a work.

It is probably a trademark, which could be enough to stop them using the words "silly putty", but not to stop them posting the instructions. To do that, they would need to have patented the technique of making it. Either way, copyright doesn't come into it.

Re:Dont Joke (1)

JWW (79176) | about 11 years ago | (#6957191)

Totally correct, and if silly putty (which has been around for ages) is patented, its patent has expired.

The only action that could be taken (outside of the name thing) would be if the recipie for silly putty was a trade secret. But as a trade secret, if some one discovers what the recipie is you can share it. You have to have a patent to get protection.

The recipe (4, Informative)

bezuwork's friend (589226) | about 11 years ago | (#6957386)

The recipe, well, at least the ingredients, are here [vern.com] .

Re:Dont Joke (0)

Anonymous Coward | about 11 years ago | (#6957092)

As a chemical compound it would more likely be patented. But after 17 years you're allowed to manufacture and sell your "generic" version.

Re:Dont Joke (2, Interesting)

Anonymous Coward | about 11 years ago | (#6957099)

Actually it's a security circumvention device [dansdata.com] , used to bypass fingerprint scanners

Re:Dont Joke (5, Informative)

gilroy (155262) | about 11 years ago | (#6957137)

From the missed-the-joke department:
Isn't silly putty a copyright circumvention tool?
It IS copyrighted.. so that page COULD be shut down by ( i think ) hasbro..

The original poster was not saying that making Silly Putty might be a copyright violation. He was saying that the use of Silly Putty -- to wit, to copy (say) your Sunday comics and then stretch them -- was employing a "circumvention device".

Its too early in the morning.. (1)

nurb432 (527695) | about 11 years ago | (#6957410)

Yup.. i missed it.. need more sleep.

Re:Dont Joke (2, Funny)

MuParadigm (687680) | about 11 years ago | (#6957319)


Elmer's Glue and Borax.

Slow news day, huh?

Re:Dont Joke (1)

zaphodbblx (705015) | about 11 years ago | (#6957525)

Actualy they might be forced to mention the name "silly putty" with a tm or R mark after it, but unless they can prove the recipe was stolen that would't have a leg to stand on. Any how any protection they would have on the recipe should have expired by now and I have seen "generic" puttys on the market. some are really bad(stick to anything except comics and stain fabric) and some like "smart mass" rock!

The missing bit (5, Informative)

Mr. Darl McBride (704524) | about 11 years ago | (#6957053)

The Silly Putty(R) recipe refers to the slime recipe for the actual production procedures. It's not linked in the Slashdot writeup or on the umn.edu Silly Putty page, so I've linked it here [umn.edu] .

Another slime recipe can be found here [caldera.com] as well.

Re:The missing bit (0)

Anonymous Coward | about 11 years ago | (#6957079)

Not to insult you or anything, but your trolls aren't even funny any more. Come up with some new material sometime.

Re:The missing bit (0, Troll)

Mr. Darl McBride (704524) | about 11 years ago | (#6957096)

Just because I'm posting as Darl doesn't mean I'm trolling. The article left off a critical page, without which the recipe would be tough to use.

You, on the other hand, post anonymously because you're afraid of the moderators' response to your trolling. If you're even a little bit sure of yourself, post logged-in so they can show you what the think.

Re:The missing bit (0)

Anonymous Coward | about 11 years ago | (#6957115)

since when did a troll have to be funny to be effective? he made you reply, didn't he? i love darl! darl has power over all anonymous cowards, you and me both! you're just not manly enough to admit it!

Re:The missing bit (0)

Anonymous Coward | about 11 years ago | (#6957131)

Huh? No troll there, knucklehead.

Re:The missing bit (0)

Anonymous Coward | about 11 years ago | (#6957135)

Nice troll. Post with your name and face the mods, coward!

Re:The missing bit (0)

Anonymous Coward | about 11 years ago | (#6957151)

Darl included the link Taco forgot so we can actually use the information. The link is safe; I'm not sure what AC is trying to do. Probably another humorless jerk who hates SlashDarl because he confuses SlashDarl with the real thing.

Re:The missing bit (0)

Anonymous Coward | about 11 years ago | (#6957162)

Not to insult you or anything, but your trolls aren't even funny any more.

Troll? It's sad to see brain death in one so young. How you go on talking, I can't be sure. The only troll is you stopping a good user from giving good information. Thank god the moderators weren't fooled.

Re:The missing bit (0)

Anonymous Coward | about 11 years ago | (#6957118)

Your 'borate ion' sure does look like a swastika...

Re:The missing bit (-1)

exspecto (513607) | about 11 years ago | (#6957260)

It's the truth. And the SCO source code link looks suspiciously like a dump I took this morning.

Re:The missing bit (1)

Directrix1 (157787) | about 11 years ago | (#6957293)

Did you notice that the borate ion shown on the slime page (the reproducible slime, not the slime of society page) is a swastika?

Re:The missing bit (1)

$0-(jlo)-0$ (707171) | about 11 years ago | (#6957563)

Does a borate ion normally take the shape of a swastika??? http://www.chem.umn.edu/outreach/Slime.html

Actual method (5, Informative)

ldm (676254) | about 11 years ago | (#6957056)

The instructions by themselves are not particularly instructive: "the procedure can be followed from the slime procedure above."
This is mentioned here [umn.edu] . There's a bunch of other cool stuff [umn.edu] in the same section, too.

Should we be calling it "Silly Putty"? (5, Funny)

Dancin_Santa (265275) | about 11 years ago | (#6957062)

It's amazing how a chemical compound created while trying to devise better ways to kill enemies works out to have recreational purposes.

And they say America spends too much on military research.

The history behind it. (3, Informative)

los furtive (232491) | about 11 years ago | (#6957331)

I was a bit dubious to your military claims since the linked article only makes reference to an attempt to make a synthetic rubber. However, a bit of research on sillyputty.com [sillyputty.com] shows not only that you are correct, but also lists the ingredients (boric acid and silicone oil) required to manufacture it. Read on for an excerpt:

1940 In the midst of World War II, the Japanese contine to invade rubber producing countries in the Far East, cutting off supply to the United States. This begins to hamper war production efforts, especially for truck tires and boots. As a result, the government's War Production Board asks American industry to attempt to develop a synthetic rubber compound.

1943 James Wright, a Scottish engineer working for General Electric's New Haven, Conn., laboratory, combines boric acid and silicone oil in a test tube. The compound becomes "polymerized." Wright removes the goeey substance from the test tube and in his exuberance tosses some on the floor. Bouncing putty is born.

That's something new? (1)

jamehec (703164) | about 11 years ago | (#6957455)

Okay, so the AK-47 and the M1921AC are not chemical compounds - but they were created to kill enemies AND they have recreational purposes. :sets selector to "Rock 'N' Roll" mode:

Re:Should we be calling it "Silly Putty"? (4, Funny)

Guppy06 (410832) | about 11 years ago | (#6957460)

And it didn't even involve the phrase "Hey y'all, watch this!"

They've had this for years on the inter-web (3, Funny)

Anonymous Coward | about 11 years ago | (#6957063)

Any terrorist handbook worth its salt has had recipes for putties for years. OH! SILLY putty! I was thinking EXPLOSIVE putty! My bad.

... why...? (0)

TWX (665546) | about 11 years ago | (#6957064)

I mean, when they created silly putty 'back in the day' they couldn't find a use for it, so it became a way to annoy one's parents. Do they think that we'll find a way now, so they felt it prudent to release this upon us?

This is very dangerous. (0, Funny)

Krapangor (533950) | about 11 years ago | (#6957066)

You can make very dangerous grenades by using silly putty.
Personally I wouldn't publish such information. With the Patriot act you are with one feet in prison when putting this on the web.
And it's always a little questionable to provide people with information to make dangerous stuff like weapons etc.

Re:This is very dangerous. (0)

Anonymous Coward | about 11 years ago | (#6957290)

If you're in Mensa, who stole your grammar?

Re:This is very dangerous. (1)

radish (98371) | about 11 years ago | (#6957307)

More importantly, someone appears to have stolen both his brain cells. The swines!

Gak? (5, Insightful)

The Z Master (234139) | about 11 years ago | (#6957073)

This actually looks a lot like the recipe for Gak. The only difference is that Gak uses Borax, which, for all I know could be the same as sodium borate. Are Gak and silly putty perhaps the same except for the glue to sodium borate ratio?

Re:Gak? (3, Informative)

jacobdp (698004) | about 11 years ago | (#6957111)

Same dif. 20 Mule Team Borax + water = sodium borate solution.

yes (3, Informative)

fireduck (197000) | about 11 years ago | (#6957145)

sodium borate is borax. seems rather odd to have a recipe that includes elmer's glue combining with an esoteric chemical when there's a much commoner name that could be used...

I hope this is a bulk recipe (5, Funny)

Anonymous Coward | about 11 years ago | (#6957076)

Have you ever wanted a ball of Silly Putty as big as your head?

I'm hydrocephalic, you insensitive clod! I'd prefer a smaller head, thank you.

We've been served! "Backards?" It's on Silly Putty (0, Insightful)

Mr. Darl McBride (704524) | about 11 years ago | (#6957077)

Isn't silly putty a copyright circumvention tool? This should be regulated before it gets out of hand.

Funny. :-)

I don't know about that holding up, but Silly Putty is a registered trademark, and umn.edu should be reflecting that. They should be calling this "a Silly Putty(R)-like substance" before "Binney & Smith Source" goes after them for $3 billion USD.

Microsoft know alot about putty (1, Funny)

SystematicPsycho (456042) | about 11 years ago | (#6957093)

Ever wanted to know how microsoft patch their software? Gum and putty, they got tonnes of the stuff. Good'ol Bill has the worlds largest bubble bum collection, as for the putty, Ballmer keeps a lump in his back pocket
--

Re:Microsoft know alot about putty (1)

bryanthompson (627923) | about 11 years ago | (#6957256)

heh, sounds like my dorm room. Our handle door stopper thing fell off two weeks ago for reasons i won't go into here, so we used putty and chewed gum to stick it back on the wall.

2 weeks later... still holdin :-)

Now you can... (4, Funny)

mgcsinc (681597) | about 11 years ago | (#6957095)

"Now you can make it at home"

Okay, sure, I'll just pull the sodium borate out of my cabinet under the sink.

Re:Now you can... (1, Informative)

Anonymous Coward | about 11 years ago | (#6957112)

Hear of "borax"?

Re:Now you can... (1)

Rick Richardson (87058) | about 11 years ago | (#6957119)

"100-mule train Borax". You may be too young to remember the commercials.

Re:Now you can... (0, Redundant)

arodland (127775) | about 11 years ago | (#6957128)

That would be exactly where you would find it, most likely.

Re:Now you can... (5, Informative)

bhtooefr (649901) | about 11 years ago | (#6957164)

Mod parent down as ignorant - you'll find it as 20 Mule Team Borax, and it'll be by your washer or under your sink. If you don't have any, go to the detergerent aisle in the grocery store.

Re:Now you can... (3, Funny)

Xpilot (117961) | about 11 years ago | (#6957224)

Okay, sure, I'll just pull the sodium borate out of my cabinet under the sink.

What, you're saying you don't have any in stock? What kind of geek are you? :p

Go UMN! (0, Interesting)

dieman (4814) | about 11 years ago | (#6957124)

Woot!

Go UMN! (0)

Anonymous Coward | about 11 years ago | (#6957140)

Ugly Monkey Nads! w00t!!!11!

Re:Go UMN! (-1)

RevAaron (125240) | about 11 years ago | (#6957167)

/me is a U of M - Duluth student. Wooo, go UMN, etc etc.

Silly Putty is easy to make (4, Insightful)

edwdig (47888) | about 11 years ago | (#6957125)

Back in my freshman year Chemistry Lab 4 years ago one of the experiments was to make silly putty. I remember it was one of the simplier labs to do, but the end result didn't come out very good. It dries out very quickly, and isn't as "flexible" as the stuff you buy in a store. It broke very easily. I don't remember if the teacher gave an explaination of why the putty we made wasn't as good as the store bought stuff, but I do remember getting the impression that you weren't going to get anything high quality in a small one off run.

Re:Silly Putty is easy to make (0)

Anonymous Coward | about 11 years ago | (#6957320)

You must have gotten the fun chemistry class, in mine all we ever got to do was titration, everything else was just mathematical. For example we spent 3 weeks learning about galvanic and voltaic cells and not once did we get to zap or electroplate anything.

Re:Silly Putty is easy to make (0)

Anonymous Coward | about 11 years ago | (#6957508)

Hey, I think you might have been in my class. You weren't the cute (and slightly fluffy) redhead with mono, were you?

From domestic materials? (5, Funny)

heironymouscoward (683461) | about 11 years ago | (#6957132)

My cousin gave me a recipe for making this from domestic materials... Salt has lots of sodium, and most brands of the toilet cleaner contain borate. Let me see... if I just mix a little of that with some garden fertiliser, then shake the whol >BOOOM<!!

history of silly putty or SLiMe (-1, Troll)

Anonymous Coward | about 11 years ago | (#6957133)

actually a alien spacecraft crashed in wrights back yard. when the engine blow a warp-time ripple traversed the globe and everybody forgot their memory of the past two months.
apart from this negative impact on human society their was a positive side to it: it's SLiMe!
SLiMe was used on the alien spacecraft as a kind of lubricant for their warp drive and a kinetic energy storage "liquid". when the warp-drive blew all the SLiMe splattered over wrights back yard. this is the true history of SLiMe!

it's extraterrestial!

Re:history of silly putty or SLiMe (0)

Anonymous Coward | about 11 years ago | (#6957143)

So was the titanic.

Ob. DMCA joke (2, Funny)

KillboyPHD (82897) | about 11 years ago | (#6957139)

This recipe is a clear violation of the DMCA, in that the end device is capable of copying copyrighted materials (newspapers) and defeating their protection mechanisms (if they've been printed backwards).

Buy in Bulk (4, Informative)

jchawk (127686) | about 11 years ago | (#6957141)

For those of you who are lazy here are a couple of links to buy silly putty in bulk.

From Crayola [crayola.com]

Or if you would like to buy 100 pounds of the stuff you can apparently order it directly from Dow Corning. Here's a page with step by step instructions on what to ask for and who to call.

100 Pounds or More [vern.com]

Re:Buy in Bulk (1)

nucal (561664) | about 11 years ago | (#6957515)

Who would win in a race between Silly Putty Superman [crayola.com] and Silly Putty Flash [crayola.com] ?

Silly Putty Hulk [crayola.com] no care - want Silly Putty Wonder Woman [crayola.com] .

Slashdotted already - here's the text. (-1, Troll)

Anonymous Coward | about 11 years ago | (#6957142)

Silly putty

Background:
The history of silly putty is quite amusing. In 1943 James Wright, an engineer, was attempting to create a synthetic rubber. He was unable to achieve the properties he was looking for and put his creation (later to be called silly putty) on the shelf as a failure. A few years later, a salesman for the Dow Corning Corporation was using the putty to entertain some customers. One of his customers became intrigued with the putty and saw that it had potential as a new toy. In 1957, after being endorsed on the "Howdy Doody Show", silly putty became a toy fad. Recently new uses such as a grip strengthener and as an art medium have been developed. Silly putt even went into space on the Apollo 8 mission.

The polymers in silly putty have covalent bonds within the molecules, but hydrogen bonds between the molecules. The hydrogen bonds are easily broken. When small amounts of stress are slowly applied to the putty, only a few bonds are broken and the putty "flows". When larger amounts of stress are applied quickly, there are many hydrogen bonds that break, causing the putty to break or tear.

Materials:

* Large flask of 55% Elmer's glue solution in water
* Large flask of 16% sodium borate
* Small styrofoam or Dixie cups
* Wooden stir sticks
* Food coloring
* Cmdr Taco's gaycum
* Zip lock bags

Procedure:
The Elmer's glue solution and the sodium borate are mixed in a 4:1 ratio. Eat the gaycum. The procedure can be followed from the slime procedure above.

-1 Troll (0)

Anonymous Coward | about 11 years ago | (#6957243)

Of course references to cmdrtacos semen were not included in the original article.

Re: ... here's the *creative* text. (0)

Anonymous Coward | about 11 years ago | (#6957280)

* Wooden stir sticks
* Food coloring
* Cmdr Taco's gaycum


Now if you're going to be creative and add your own ingredients like 'gaycum', you probably should have realised that you won't need the food colouring anymore..

Ive known about this for several years (3, Informative)

DigitalReligion (684511) | about 11 years ago | (#6957156)

Glue borax and water.

Its not really the same consistancy of silly putty from the times Ive made it.

Re:Ive known about this for several years (0)

Anonymous Coward | about 11 years ago | (#6957179)

Lawyers guns and money.

Can't get me out of this.

Re:Ive known about this for several years (0)

Anonymous Coward | about 11 years ago | (#6957193)

Blood crank and sperm.

It's not really the same Friday night if your mom isn't around.

Re:Ive known about this for several years (0)

Anonymous Coward | about 11 years ago | (#6957214)

Neil Alex and Geddy.

When Neil dies from cancer it won't really be the same if they replace him.

Re:Ive known about this for several years (0)

Anonymous Coward | about 11 years ago | (#6957240)

New hope Empire and Return.

It's not really the same watching the special editions.

Goop, Glop, Gak, Flubber, and Oobleck too (5, Informative)

trveler (214816) | about 11 years ago | (#6957158)

Check out this link [cmsd.bc.ca] for these recipes.

sodium borate (1, Funny)

paradesign (561561) | about 11 years ago | (#6957159)

no wonder i was never allowed to eat the stuff.

where would one go to buy this stuff anyways?

Re:sodium borate (0)

Anonymous Coward | about 11 years ago | (#6957348)

Albertsons. Look for Borax, retard.

OMG... (0)

The Z Master (234139) | about 11 years ago | (#6957168)

They're Nazi's! Just take a look at the bottom-center of this [umn.edu] diagram.

</joke>

Re:OMG... (1)

capnjack41 (560306) | about 11 years ago | (#6957297)

When you're playing with borate ions, you're playing with Hitler!!

Sodium Borate == Borax (1)

trveler (214816) | about 11 years ago | (#6957173)

Check it out. [galleries.com]

Refine your own oil (0)

Anonymous Coward | about 11 years ago | (#6957175)

It's easy. Just heat the oil to 600c and feed it into the distillation column in your backyard. Cheaper than buying your own natural gas.

recipie is wrong (5, Informative)

kencurry (471519) | about 11 years ago | (#6957178)

from www.sillyputty.com

"Silly Putty is a dilatant compound, a silicone based polymer..." This statement makes sense also because the inventor was (is) a Dow chemist/engineer. Dow has always been a leader in silicone chemistry.

The recipie from U of M is a borate cross-linked PVA (from the Elmer's), better known as slime. This is NOT a silicone polymer.

Before I flame UofM Chemistry dept., I will give them a change to correct this gaff.

Re:recipie is wrong (1)

Meowing (241289) | about 11 years ago | (#6957264)

Yep, it was indeed an early attempt to produce a practical silicone rubber (obviously, Dow Corning learned a few things since).

There are instructions for ordering DC 3179 dilatant compound in large amounts (100 lbs or more) on these pages [vern.com] .

My dreams realized (2, Funny)

Faust7 (314817) | about 11 years ago | (#6957181)

Have you ever wanted a ball of Silly Putty as big as your head?

Why, yes! Yes I have!

Now you can make it at home.

"We went to the bars and then a house party last night. What'd you do?"
"I stayed at home and made Silly Putty! I'm going to kill myself!"

this is Gak, not Silly Putty (1)

Anonymous Coward | about 11 years ago | (#6957184)

Anybody know how to really make silly putty? Gak is boring.

Hmmm sodium borate (0, Redundant)

Gudeldar (705128) | about 11 years ago | (#6957199)

Right make it at home Let me just go to the cabinent I have thats full of highly toxic chemicals I also enjoy how that there aren't any exact measurements Large Flask may be some sort of scientific standard of measurement but I sure as hell have no idea what 55% of a "large flask" is

Re:Hmmm sodium borate (1)

DigitalReligion (684511) | about 11 years ago | (#6957234)

Its all relative.

as long as its got the right proportions it doesnt matter what a Large Flask is.

btw, you can buy Sodium borate at your local grocery store.

Borax: A hydrated sodium borate, Na2B4O710H2O, an ore of boron, that is used as a cleaning compound

Re:Hmmm sodium borate (1)

KnightStalker (1929) | about 11 years ago | (#6957518)

The directions clearly state to mix the glue solution and the sodium borate in a 4:1 ratio.

THAT'S A LOTTA SILLY PUTTY (0)

Anonymous Coward | about 11 years ago | (#6957216)

weeoooweeoooweeoooweeeooo

Homemade Silly Putty = (0)

Anonymous Coward | about 11 years ago | (#6957217)

the result of nasal spelunking: boogers!

Explanation please? (1)

leomekenkamp (566309) | about 11 years ago | (#6957242)

Could someone please for all of us silly slashdotters who do not know what Silly Putty is (or maybe know it under another name) give some explanation? From what I found on google it seems to be some sort of flubber" [imdb.com] , but then, sort of, ... different.

This being slashdot, could anyone also put up some links about all models of starwars ships that have been created with this stuff?

Re:Explanation please? (0)

Anonymous Coward | about 11 years ago | (#6957378)

http://www.sillyputty.com/history_101/history101.h tm

That's NOT Silly Putty (4, Informative)

Bob Cat - NYMPHS (313647) | about 11 years ago | (#6957246)

Dow 3179 Dilatent Compound is. It is silicone-based, like the Horta.

You can order 50lb blocks from Crayola or 100lbs from Dow. See http://vern.com/putty/ for more info.

Slashdot editors can't even check facts on Silly Putty stories. Sad.

Re:That's NOT Silly Putty (1)

SpaceLifeForm (228190) | about 11 years ago | (#6957285)

Of course not. They're too busy washing their Pet Rocks.

WRONG!!! Its missing Silicon! is fake recipe! (5, Informative)

Anonymous Coward | about 11 years ago | (#6957301)

WRONG!!! Its missing Silicon! It is a fake recipe!

Real silly putty does not dry out or leave much of a residue and is of course feshy-colorred.

Real silly putty has alwasy been :

65% dimethyl siloxane, hydroxy-terminated polymers with boric acid
-- 17% silica, quartz crystalline
-- 9% thixotrol ST
-- 4% polydimethylsiloxane
-- 1% decamethyl cyclopentasiloxane
-- ~1% glycerine
-- ~1% titanium dioxide

and of course you can manufacture it now, out of patent, but you have to be careful how you market it.

Or you can buy it from DOW in bulk for under 10 dollars per pound.

I am the first post that mentioned this and its 12:18 PM E.S.T. , so I can't imagine how something that I knew most of my adult life was not mentioned or corrected by ANYONE else. More amusing is that no one moderates on slashdot anymore even though technically all email accounts are mostly anonymous.

But for those that care. There is the CORRECT resipe , and its totally different than the poisonous one for mere slime the article mentioned.

Re:WRONG!!! Its missing Silicon! is fake recipe! (0)

djdrew6k (526089) | about 11 years ago | (#6957338)

hey, I would have replied with a similar response (albeit without the smarty-pants recipe :)), but alas, I was asleep. But you are NOT alone. I made that other recipe in chemistry class years ago, and so I was left thinking "wait, this was definitely NOT silly putty I remember making..."

Re:WRONG!!! Here is correct Silicon full recipe (5, Informative)

Anonymous Coward | about 11 years ago | (#6957422)

As a followup to my own post, here is the correct Silicon full recipe

Preparing "Silly Putty", a silicone polymer (a methyl silicone, polydimethylsiloxane), via the hydrolysis of dichlorodimethylsilane with simple lab tools.

This silicone, which contains residual hydroxyl groups, will be cross-linked using boric acid (B(OH)3). This trifunctional acid forms -Si-O-Blinkages resulting in a peculiar type of gum. The commercial "bouncing putty" found in novelty stores is a silicon polymer with softening agents, fillers and coloring agents added. The actual full list of Silly Putty ingredients with colorants and softening agents is :

-- 65% dimethyl siloxane, hydroxy-terminated polymers with boric acid
-- 17% silica, quartz crystalline
-- 9% thixotrol ST
-- 4% polydimethylsiloxane
-- 1% decamethyl cyclopentasiloxane
-- ~1% glycerine
-- ~1% titanium dioxide

This putty recipe is similar and equally pleasing:

Day 1: This reaction must be carried out in a fume hood.

Wear gloves to measure 20 mL of Si(CH3)2Cl (MW = 129.06, density = 1.064 g/mL) in a dry graduated cylinder. Rapidly transfer to a dry 250 mL Erlenmeyer flask equipped with a rubber stopper. Si(CH3)2Cl2 reacts rapidly with moisture to produce HCl gas so make the transfer swiftly. To this add 40 mL of diethylether and hydrolyze by adding 40 mL of H2O dropwise. HCl gas is evolved in this hydrolysis step.

The addition must be made slowly at the beginning of the reaction or too vigorous an evolution of the HCl will occur. The ether component will be warmed up to its boiling temperature if H2O is added too quickly. It is a good idea to have an ice-bath ready to cool down the reaction flask if the hydrolysis becomes too exothermic. The first 10 mL addition of water is very vigorous but less so afterwards. After this initial quantity, you may increase the rate of addition. The product has a very strong odor; be sure to do this in a fumehood!

Separate the ether layer at the completion of the hydrolysis step by pouring the mixture into your 250 mL separatory funnel. Wash the ether layer 3 times with 100 mL (for each wash) of 1 M Na2CO3.

This step is done to neutralize any residual acid remaining in the wet ether solution. Vigorous evolution of CO2 gas is observed at this stage as the neutralization proceeds. Add 10 mL more of diethylether to the flask after the first wash. Finally, perform on additional wash with 100 mL of water. Dry the ether solution over anhydrous magnesium sulfate in a stoppered Erlenmeyer flask, which you let rest for step two.

Day 2:

Decant the ether solution, filtering off any magnesium sulfate, into a pre-weighed 50 mL Erlenmeyer flask and evaporate off the ether using a water bath - not a hot plate. Note the yield of the dimethylsilicone oil (you should have approximately 9.5 g of material).

Add about 5% (by weight) boric acid (about 0.48 g for a yield of 9.5 g of oil), stirring continuously during the addition and for a few minutes after. This will cause the oil to become very viscous.

Heat the mixture to about 170-180 C in an oil bath and leave at this temperature for 2-3 hours. Allow to cool and remove the product from the flask by scraping it out with a spatula. If the gum is somewhat brittle, continued kneading will produce the desired gum-like characteristic. Once the gum has been removed, clean your Erlenmeyer flask with methanol.

Perform and report on the following tests:

(1) When rolled into a ball, does your product give a lively bounce on a hard surface?

(2) Does pulling sharply cause the gum to cleave?

(3) Does pulling slowly result in a stretching reminiscent of chewing gum?

(4) Does your product flow into a flat plate when placed on a flat surface?

(5) Is print transferred to the gum when test (4) is conducted on a flat newspaper?

General References

1. J. E. Mark, H. R. Allcock, R. West, Inorganic Polymers, Prentice Hall, Chapter 3, 1992.

2. D. F. Shriver, P. W. Atkins, C. H. Langford, Inorganic Chemistry, pp. 438-446, 2nd Edn, 1994.

3. F. O. Stark, J. R. Falender, A. P. Wright, "Silicones" in Comprehensive Organometallic

Chemistry, G. Wilkinson, F. G. A. Sone, E. W. Ebel Eds., Pergamon Press, Vol 2, Chapter 9.3, p.305, 1982.

Jeebus, isn't that schitt messy enough? (1)

jamehec (703164) | about 11 years ago | (#6957318)

I had some when I was a kid. It was messy, it stuck to everything, and the messes resulted in me getting a lot of spankings. Not only that, but it stank worse than my whisky farts do today.

No, I do NOT want a wad of silly putty that big. No. Damn. Way.

AKA Happy FUN Ball! (0)

Anonymous Coward | about 11 years ago | (#6957329)

Happy FUN BALL!
-only $14.95-

Warning: Pregnant women, the elderly and children under 10 should avoid prolonged exposure to Happy Fun Ball.
Caution: Happy Fun Ball may suddenly accelerate to dangerous speeds.
Happy Fun Ball Contains a liquid core, which, if exposed due to rupture, should not be touched, inhaled, or looked at.
Do not use Happy Fun Ball on concrete.

Discontinue use of Happy Fun Ball if any of the following occurs:
Itching
Vertigo
Dizziness
Tingling in extremities
Loss of balance or coordination
Slurred speech
Temporary blindness
Profuse sweating
Heart palpitations

If Happy Fun Ball begins to smoke, get away immediately. Seek shelter and cover head.
Happy Fun Ball may stick to certain types of skin.

When not in use, Happy Fun Ball should be returned to its special container and kept under refrigeration...

Failure to do so relieves the makers of Happy Fun Ball, Wacky Products Incorporated, and its parent company Global Chemical Unlimited, of any and all liability.

Ingredients of Happy Fun Ball include an unknown glowing substance which fell to Earth, presumably from outer space.

Happy Fun Ball has been shipped to our troops in Saudi Arabia and is also being dropped by our warplanes on Iraq.

Do not taunt Happy Fun Ball.

Happy Fun Ball comes with a lifetime guarantee.

Happy Fun Ball

ACCEPT NO SUBSTITUTES!

Just Buy in Bulk (4, Interesting)

Jagasian (129329) | about 11 years ago | (#6957359)

You can buy 5 lbs of silly putty for $60 [crayola.com] . Many people have done this before, and you can do some very interesting stuff with it. Like make a potato gun that shoots baseball sized balls of putty at brick walls. There are videos of this, and the putty ball shatters like a piece of glass because of its "silly" properties.

Its fun to do other experiments like bake it, freeze it, etc...

SillyBall (0, Redundant)

panic911 (224370) | about 11 years ago | (#6957376)

That's awesome, someone should come up with a new sport called sillyball or something. Have the rules based off of basektball rules, just a little sillier ;).

He died! (1)

Scottm87 (689558) | about 11 years ago | (#6957433)

INVENTORS -- On Nov. 15 Earl Warrick, 91, who was credited as one of the inventors of Silly Putty, died at his home in Loma Linda, CA. He was a Dow Corning research scientist for 33 years.

Silly Putty, a movie (4, Informative)

bezuwork's friend (589226) | about 11 years ago | (#6957441)

Any discussion about Silly Putty isn't complete without this link [sunbelt-software.com] . It is the movie where some guys drop a rather large ball of Silly Putty off of an office building for fun.

I think this was on /. before, but couldn't find the past story.

Not Silly Putty (4, Interesting)

Jagasian (129329) | about 11 years ago | (#6957451)

The Elmber's Glue recipes don't make actual silly putty. They make some cheap nasty knock-off that creates a silly putty-like compound that is slimey, leaves a greasy mess on anything it touches. Not only that, but this putty goes bad over time, unlike the real silly putty, which never dries out or gets moldy.

There is a recipe for making the real silly putty compound, but it is far more difficult and requires ingrediants and tools not found in a grocery store.

hey, (0)

Anonymous Coward | about 11 years ago | (#6957474)

what's Putty? I want a Silly Pussy!
home made, that's cool. won't have to interrupt my UT2003 sessions.

The smell of Silly Putty (0)

Anonymous Coward | about 11 years ago | (#6957524)

Has changed.. It doesn't smell like the stuff we had when I was a kid.

What gives?

Something I'd like to know (2, Interesting)

Tycho (11893) | about 11 years ago | (#6957541)

So what would happen if you dropped a head sized or larger amount of silly putty from three stories up? Would it bounce or would it splash? Or would it pancake? Has anyone actually tried this?

Not silly putty (1)

NeoSkandranon (515696) | about 11 years ago | (#6957569)

This is not Silly Putty, or anything like it. I'm sick and tired of people saying that the glue and borax formula makes it, when in fact it produces a slimy concoction most similar to the Gak that Nickelodeon markets. The result of the recipe posted will make a slimy, sticky, greasy blob of crap that will dry out in a few days
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