Is polymer clay jewelry waterproof?

Creating jewelry from polymer clay has gained popularity due to its versatility and creative possibilities. However, concerns about the water resistance of polymer clay jewelry often arise, especially when considering everyday wear. In this article, we’ll delve into the topic of whether polymer clay jewelry is waterproof and explore its ability to withstand exposure to water.

1. Inherent Properties

Polymer clay itself is not inherently waterproof:

While polymer clay is a durable material that becomes solid and hard after proper curing, it is not entirely impervious to water. Unsealed polymer clay can absorb moisture and become softer over time if exposed to prolonged or frequent contact with water. This could potentially lead to changes in the texture and appearance of the jewelry.

2. Factors Affecting Water Resistance

Several factors influence the water resistance of polymer clay jewelry:

  • Sealant: Applying a sealant or varnish can enhance the water resistance of polymer clay jewelry. A quality sealant forms a protective barrier that can help prevent moisture from penetrating the clay.
  • Quality of Curing: Properly cured polymer clay is more resistant to water. Undercured clay may be more susceptible to softening or distortion in damp conditions.
  • Surface Treatment: Some surface treatments, like sanding and buffing, can close the pores of the clay and improve its water resistance.

3. Sealing Polymer Clay Jewelry

If you want to make your polymer clay jewelry more water-resistant, consider these steps:

  • Choose the Right Sealant: Select a sealant that is compatible with polymer clay and suitable for jewelry. Some sealants are specifically designed to provide a waterproof barrier.
  • Apply Thin Coats: Apply thin, even coats of sealant to your jewelry pieces. Multiple thin coats are often more effective than one thick coat.
  • Avoid Immersion: While a sealant can improve water resistance, it’s still advisable to avoid immersing polymer clay jewelry in water or exposing it to excessive moisture. Quick splashes or accidental exposure should not pose a problem if the jewelry is properly sealed.
  • Test and Experiment: Before applying a sealant to your entire piece, conduct a test on a small area to ensure compatibility and desired results.


Polymer clay jewelry can be made water-resistant through proper sealing techniques. While polymer clay itself is not inherently waterproof, applying a suitable sealant can significantly enhance its ability to withstand exposure to water and moisture. By choosing the right sealant, applying it correctly, and taking care to avoid prolonged immersion, you can create polymer clay jewelry that remains beautiful and durable even in everyday situations.

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