Tips & Techniques

Clay Storage

Kato Polyclay should be stored in a cool, dry place without a lot of exposure to light. This clay begins to cure at approximately 90°F (32°C), and once it begins to cure, it will never return to its original state. It is a good idea to store colors and canes separate to keep them clean.

Polyclay should be stored in plastic containers or Ziploc bags to keep it fresh. It is compatible with most plastics, except for PVC plastics; these are plastics with a number “3” recycling number. If you are unsure whether or not your containers are compatible with Kato Polyclay, test it by placing a small piece of scrap clay in it for about a week and then check to see if it is still usable.




Kato Polyclay is intended for decorative use only. It should not be used for items that are intended to contain food. It is also recommended that pieces made from polymer clay not be placed in aquariums.

It is strongly suggested that you wash your hands with soap and water after using Kato Polyclay. This will keep you and your clay clean.

Kato Polyclay is certified AP Non toxic and conforms to ASTM D 4236. (Link to SDS)



NuBlade+ is an extremely sharp blade and should not be used by children. To prevent injury, grip blade by the handles with your thumb and forefinger during use.