Is polymer clay water proof?

Polymer clay is water-resistant to a certain extent, but it is not completely waterproof. While polymer clay is known for its durability and versatility, it has certain limitations when it comes to exposure to water and moisture.

Water-Resistant Properties

When properly cured and finished, polymer clay exhibits some water-resistant qualities:

  • It can withstand occasional contact with water without immediate damage.
  • Sealed or glazed polymer clay surfaces are less porous and better equipped to repel water.


Despite its water-resistant properties, there are factors to consider:

  • Prolonged exposure to water can soften and degrade polymer clay over time, leading to a loss of hardness and structural integrity.
  • Unsealed or unglazed polymer clay can absorb moisture, potentially causing warping, cracking, or color changes.
  • Submerging polymer clay in water or exposing it to harsh chemicals can damage the surface and compromise the finish.

Protective Measures

To enhance the water resistance of polymer clay:

  • Apply a clear sealant or varnish to protect the surface from moisture.
  • Use waterproof adhesives when joining polymer clay components.
  • Avoid wearing polymer clay jewelry or items while swimming, bathing, or engaging in activities that involve water exposure.

While polymer clay is versatile and durable, it is important to take precautions to prevent water-related damage and ensure the longevity of your creations.

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