September 23, 2013 in Desk Toys, Different Strokes For Different Folks, Eating Things, Heck Yeah Gluten Free You Know I’m Gonna Eat That!, I Don’t Like The Texture Of Sand In My Mouth, I Just Want To Rub My Fingers In It, It Feels Weird In My Hands! (Pants Too), Kids, Make Sure To Seal The Box When You’re Done Playing With It Though Because You Cat Will Totally Shit In That (And Your Kids Will Still Play With It After), Motor Skills, Sand, Silly Putty, Toys
This is a video demonstration of Kinetic Sand, a sand play toy made from 98% sand, and 2% Polydimethyl siloxane, a “silicon-based organic polymer…particularly known for its unusual rheological (or flow) properties.” It makes the sand act…weird. Also, at $45 for 5kg (~11 pounds) of Kinetic Sand, it sounds like either polydimethyl siloxane is really, really expensive, or somebody’s price gouging. Just saying, I’ll sell you a bag of cat litter mixed with paint thinner for $10. It might not act the same, but neither will your kids after they eat a handful.
15 pounds of play sand/98 = 100% of the kinetic sand compound equals .15306122449 for each percentage point so .15306122449*2 percentage points=.30612244898 pounds which is about 5 ounces of silicon-based organic polymer to be added to make 100% of the kinetic sand compound these are weight ounces and not liquid ounces.
Translation: 15 pound bag of sand and mix about five ounces by weight of the polymer
This is all guesstimations and not accurate quantities. experiment a little and post comments with your results.