Polymer clay is generally not waterproof and may be susceptible to damage when exposed to water for prolonged periods.
Water-related issues with polymer clay:
- Softening: Polymer clay can soften and become pliable when exposed to moisture, potentially losing its shape or details.
- Discoloration: Some polymer clay brands and colors may change in appearance when wet or when exposed to water-soluble pigments.
- Weakening: Polymer clay items may become more fragile when wet, making them more susceptible to breakage or deformation.
If you plan to use polymer clay in items that may come into contact with water, consider sealing the clay with a waterproof sealant to provide some level of protection.