Does polymer clay dry in sun?

Polymer clay is a popular and versatile medium used by artists and crafters to create a wide variety of intricate and beautiful pieces. When working with polymer clay, one may wonder whether the sun can be used as a method to dry or cure the clay. In this article, we’ll explore the effects of sunlight on polymer clay and whether it can effectively dry or cure the material.

The Curing Process of Polymer Clay

Polymer clay doesn’t “dry” like traditional air-drying clay. Instead, it undergoes a curing process that involves a chemical reaction triggered by heat. The heat causes the plastic particles in the clay to fuse together, transforming the soft and malleable material into a durable and solid state. This process is typically achieved by baking the polymer clay at specific temperatures recommended by the manufacturer.

Sunlight and Polymer Clay

While sunlight provides heat and UV radiation, which are essential elements for the curing process, it’s generally not recommended to rely solely on sunlight to cure polymer clay. There are several reasons for this:

  • Inconsistent Heat: The heat from the sun may not be consistent or evenly distributed, leading to uneven curing or potentially incomplete curing of the clay.
  • Variable UV Exposure: The strength of UV radiation from the sun can vary depending on factors such as cloud cover and geographical location. Inconsistent UV exposure may affect the curing process.
  • Longer Curing Time: Curing polymer clay in the sun may require significantly longer exposure times compared to baking in an oven, which could lead to increased risk of the clay becoming discolored, burnt, or distorted.
  • Unpredictable Results: Relying solely on sunlight may lead to unpredictable results, potentially compromising the quality of your polymer clay creations.

To achieve optimal and consistent results when curing polymer clay, it’s best to use a conventional oven or a dedicated polymer clay toaster oven. Follow these steps for successful curing:

  1. Preheat the oven to the temperature recommended by the manufacturer of the polymer clay.
  2. Place your polymer clay creations on a baking surface, such as a ceramic tile or a baking sheet lined with parchment paper.
  3. Bake the clay for the duration specified by the manufacturer, usually around 15-45 minutes, depending on the thickness of the clay and the brand.
  4. Allow the clay to cool completely before handling or finishing your project.


In conclusion, while sunlight provides some of the necessary elements for curing polymer clay, relying solely on sunlight to cure or dry the clay is not recommended. The curing process of polymer clay is best achieved through controlled baking in an oven or toaster oven at the recommended temperatures and durations. By following proper curing techniques, you can ensure that your polymer clay creations are fully cured, durable, and of the highest quality.

Rate article
Add a comment