what is play putty

"What's Play Putty? Unveiling the Fun!"

By Matthew LeeDecember 7, 2025

Have you ever heard of Play Putty? You're not alone if you haven't, but this unique, moldable substance has been captivating both kids and adults alike for decades. It's a fascinating blend of science and fun, and it's about time we delved into the world of Play Putty.

What is Play Putty?

Play Putty is a non-Newtonian fluid, a fancy term for a substance that doesn't follow the usual rules of physics. It's a viscoelastic fluid, which means it can act like both a solid and a liquid. When you apply a sudden force, like squeezing it, it behaves like a solid. But when you apply a slow, steady force, like letting it drip through your fingers, it flows like a liquid. Isn't science cool?

How is Play Putty Made?

Play Putty is typically made from a polymer called polyborosiloxane, which is created by mixing boric acid and silicone oil. When you add a small amount of water, the boric acid reacts with the silicone oil to form a cross-linked polymer network. This network gives Play Putty its unique properties.

Putty Slime Recipe - Little Bins for Little Hands

The OT - Have you ever made slime? How about therapy putty? Here's a recipe to try. Here are a bunch of play dough recipes that we love: https://www.theottoolbox.com/best-dough-recipes/ Including our famous crayon play dough: https://www.theottoolbox.com/crayon-play-dough-recipes/ | Facebook

Ingredients

Silicone oil
Boric acid
Water

Why is Play Putty So Fascinating?

Play Putty's ability to change states makes it incredibly engaging. It's like magic in your hands! You can stretch it, mold it, and even tear it apart, only to have it reform right before your eyes. It's a great way to learn about states of matter and non-Newtonian fluids in a fun, hands-on way.

Play Putty vs. Slime: What's the Difference?

Play Putty and slime are both moldable substances, but they have some key differences. Slime is typically made from glue and borax, while Play Putty uses silicone oil and boric acid. Slime is usually stretchy and stringy, while Play Putty is more solid and can be torn apart. Play Putty also doesn't stick to surfaces like slime can.

How to Make Therapy Putty (Theraputty) at Home

DIY Putty | Fidget Slime | Therapeutic Slime

easy diy silly putty in less than 5 minutes no borax

Fun Facts About Play Putty

Fact	Info
Play Putty was first created in the 1970s	by a scientist named Norman Cook
It's often used in science classrooms	to teach about non-Newtonian fluids
Play Putty can be found in various colors	and even glow-in-the-dark varieties

Play Putty is more than just a toy; it's a scientific phenomenon that's fun to play with. Whether you're a kid discovering the joy of science or an adult looking for a unique sensory experience, Play Putty is sure to captivate you. So go ahead, give it a squeeze, and let the magic of non-Newtonian fluids unfold in your hands.