top of page
  • Naomi Stephens | Permaculture Designer

Choetsu - A new coating that turns paper into plastic-like material that will degrade over time

Updated: Mar 6

Key Takeaways:

  • Professor Zenji Hiroi, a professor at Tokyo University, has created a coating that will give paper the same properties as plastic.

  • He created Choetsu, a coating of materials that makes paper waterproof by forming a solid rubber-like film.

  • The coating comprises methyltrimethoxysilane, some isopropyl alcohol, and tetra isopropyl titanate.

  • Plastic is a very unsustainable product to have in our environment. If we put our minds to it, plastic can be avoided, and we can use other biodegradable products for everyday use, such as plastic bags that make up a large quantity of environmental pollution.

"Choetsu is a combination of materials which, when applied to paper, spontaneously generate a strong and waterproof film when it makes contact with moisture in the air."
"All of the chemicals involved in the coating break down over time into harmless things such as carbon, water and sandlike silicon."

Read the full article here:


Keep up with the latest sustainable living news by subscribing to our newsletter. We'll send you an email each month featuring some of today's most intriguing topics, like climate change, food security, and sustainability!



Get free resources, useful, well researched new ideas. Subscribe.

Subscribe for free Permaculture resources periodically. 

Subscribe for more relevant information on small space gardening and Urban permaculture. Be the first to see exclusive and new content. Be updated on the latest on what's going on in the urban gardening world.

See More

bottom of page