Yes — silicone is inherently squishy. But "squishy" in the material science sense (compressible, elastic) is different from "squishy" in the toy sense (slow-rise compression). Here's what makes silicone work as a squishy material, and why it's the best choice for squeeze toys.
Is Silicone Squishy?
Yes. Silicone rubber is an elastomer — a material that can be compressed and will return to its original shape. When you press silicone, the polymer chains compress and store energy, then release that energy to rebound.
Most squishy toys use 15A-30A Shore hardness silicone, which is soft enough to compress easily but firm enough to maintain structure.
For more on how silicone compares to other materials, see What Are Squishy Toys Made Of?
What Makes Silicone Squishy?
Polymer chains — Long chains of alternating silicon and oxygen atoms (Si-O-Si-O). These chains are flexible and can slide past each other when compressed.
Cross-linking — Polymer chains connected by cross-links store energy when compressed and pull the material back to its original shape.
Low intermolecular forces — Silicone molecules don't stick strongly to each other, allowing the chains to move freely.
Silicone vs. Other Squishy Materials
| Material | Compressibility | Rebound Speed | Durability | Surface Feel |
|---|---|---|---|---|
| Silicone | High | Slow (3-5s) | Years | Smooth, tacky |
| Foam | Very high | Slow initially (5-10s) | Weeks-months | Matte, spongy |
| TPR | Moderate | Medium (2-4s) | Months-years | Smooth, firm |
| Gel | Low | Fast (1-2s) | Moderate | Cool, slippery |
| ## Why Silicone Is the Best Squishy Material | ||||
| It doesn't degrade — Chemically stable. Feels the same on day 1 and day 1000. |
It's safe — Food-grade silicone is non-toxic, BPA-free, phthalate-free.
It's odorless — Unlike foam squishies.
It's washable — Soap and water. Doesn't absorb water or harbor bacteria.
The tactile quality is consistent — Foam loses slow-rise quality as it degrades. Silicone never does.
Read more about why silicone squishies are sticky and how to fix it.
How to Tell If a Squishy Is Silicone
Smell test — Silicone is completely odorless. Any scent indicates foam.
Surface feel — Smooth and slightly tacky (or dry/matte if powder-coated).
Weight — Silicone feels substantial. Foam feels very light.
Rebound time — Silicone: 3-5 seconds. Foam: 5-10 seconds initially. Gel: 1-2 seconds.
Frequently Asked Questions
Is silicone squishy?
Yes. Silicone is an elastomer with high compressibility and slow rebound. Most squishy toys use 15A-30A Shore hardness silicone, which rebounds in 3-5 seconds and maintains this quality indefinitely.
What makes silicone squishy?
Its polymer structure: flexible Si-O chains connected by cross-links. When compressed, the chains slide and cross-links store energy. When released, the cross-links pull the material back to shape.
Is silicone better than foam for squishies?
Yes. Silicone lasts years, is odorless, safe, washable, and maintains consistent slow-rise quality. Foam degrades within weeks.
Why is silicone tacky?
High surface energy creates molecular attraction between the surface and your skin. Powder-coated silicone eliminates tackiness. See Why Is My Squishy Sticky?
Can you wash silicone squishies?
Yes. Silicone is waterproof. Wash with soap and water, rinse, and let air dry.
How long do silicone squishies last?
Essentially permanent with normal use. The material doesn't degrade from UV light, oxygen, or compression.
Where to Find Silicone Squishies
Browse the Silicone Squishy Collection to find durable, safe options.