• A kneaded eraser is a soft eraser that can be formed into any shape for exact/precise erasing. Kneaded erasers are good for highlighting techniques and work best on surfaces with graphite, charcoal, and pastel.


  • Kneaded erasers can be made from natural rubber or synthetic rubber. Natural rubber for kneaded erasers utilize the latex sap of a rubber tree. The most common synthetic rubber for erasers comes from styrene and butadiene, which are derived from petroleum.1


  • Use of petroleum based chemicals contributes to the fossil fuel industry. The chemical process of creating synthetic rubber involves harmful chemicals, and high amounts of energy to chemically and physically manipulate materials into forming rubber.

Human Health

  • Kneaded erasers are considered safe under normal use. Consumption and other misuse will require medical attention. 2    

Safe Use and Exposure

  • Most kneaded erasers are proven by the Institute Toxicology Advisory Board to have no interference with human health when used appropriately. Safety recommendations on other “unproven” erasers are simply to wash hands and to not consume.

Proper disposal

  • Kneaded erasers become worn out once they have been oversaturated with lead and other debris. Kneaded erasures can be discarded in the trash. Usable pieces can be donated to givetake.

Safe Alternatives

  • While there is not any known harm associated with appropriate usage of kneaded erasers, General’s Kneaded Erasers 3 are PVC and Latex free, and Faber-Castell offers a soft eraser that is also PVC and Latex free. 4


  1. “Eraser”, How Products are Made,
  2. Prismacolor Erasers MSDS,
  3. General Pencil Company, Inc. Kneaded Eraser MSDS,
  4. “Faber-Castell Dust-Free Art Eraser”,,