September 23, 2013 in  Desk ToysDifferent Strokes For Different FolksEating ThingsHeck Yeah Gluten Free You Know I’m Gonna Eat That!I Don’t Like The Texture Of Sand In My MouthI Just Want To Rub My Fingers In ItIt Feels Weird In My Hands! (Pants Too)KidsMake 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 SkillsSandSilly PuttyToys


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.


Extra Large 20 Liter Portable Sand Tray with Lid & 10 Lbs White Sandtastik Sand

Remedy with Olivamine Dimethicone Skin Protectant Barrier Cream 4 oz Tube (Pack of 2)