Is polymer clay toxic to breathe in?

Polymer clay is a popular and versatile crafting material used by artists and hobbyists to create a wide range of projects, from jewelry and sculptures to figurines and home decor items. When working with polymer clay, questions about its safety and potential health risks may arise. In this article, we’ll explore whether polymer clay is toxic to breathe in, the materials it contains, and tips for safe handling.

Composition of Polymer Clay

Polymer clay is composed of a mixture of polymerized vinyl chloride (PVC) particles, plasticizers, pigments, and other additives. The plasticizers help soften the clay, making it pliable and easy to work with, while pigments provide the vibrant colors. When polymer clay is baked at the recommended temperatures, the polymerization process occurs, resulting in a solid and durable material.

Inhalation of Polymer Clay Particles

While polymer clay is generally safe to handle, there are concerns about inhaling clay particles, especially when sanding or cutting the clay. Fine particles and dust released during these processes can become airborne and potentially be inhaled. Inhaling large amounts of airborne clay particles may lead to respiratory irritation, similar to inhaling dust from other materials.

Safety Precautions

To minimize the risk of inhaling polymer clay particles and ensure safe handling, consider the following precautions:

  • Work in a Well-Ventilated Area: Always work in a well-ventilated space, such as a room with open windows or a fan. Proper ventilation helps disperse any airborne particles and reduces the concentration of dust in the air.
  • Use a Respirator: When sanding, cutting, or performing activities that generate dust, wear a dust mask or a respirator designed to filter out fine particles. This precaution helps prevent the inhalation of clay particles.
  • Minimize Dust: To reduce the amount of dust generated, consider wet sanding or using sanding tools equipped with dust extraction systems. Wet sanding can help keep dust particles from becoming airborne.
  • Wash Hands: After handling polymer clay, thoroughly wash your hands to remove any residue or clay particles that may be present on your skin.
  • Clean Workspace: Regularly clean your workspace, tools, and equipment to prevent the accumulation of clay dust.


In conclusion, while polymer clay is generally safe to handle, precautions should be taken to minimize the risk of inhaling airborne clay particles. Working in a well-ventilated area, wearing a dust mask or respirator when necessary, and practicing proper cleaning and hygiene habits can help ensure your safety when working with polymer clay. By following these guidelines, you can enjoy the creative process while safeguarding your respiratory health and well-being.

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