Thermocol or Expanded Polystyrene is a rigid, lightweight and cellular plastic material made up of monomers of the aromatic hydrocarbon, styrene. It is produced by expanding polystyrene beads with a blowing agent like pentane along with steam, thereby creating a foam with 95-98% air content. Thermocol is an excellent thermal insulator, water-resistant, shock-resistant and chemically stable.
Thermocol is widely used as a packaging material for electronics, appliances and fragile goods along with food packaging in the form of containers, cups and plates for takeaway food. It is also used in the construction industry for making insulation boards and as a lightweight filler in concrete and decorative structures. Furthermore, thermocol finds use in event decorations for making festival props and backdrops. Thermocol is non-biodegradable and can persist in landfills for years.
Legal Status in India
Thermocol or Expanded Polystyrene is not completely banned in India. However, certain forms of thermocol, particularly single-use, disposable and low-utility items, have been banned under national and state-level regulations. Thermocol is allowed in a number of applications, such as industrial packaging, fish containers, construction and insulation.
On 12th August 2021, the Ministry of Environment, Forest and Climate Change of the Government of India notified the Plastic Waste Management Amendment Rules, 2021. Under the rules, the Government of India imposed a nationwide ban on the manufacture, import, stocking, distribution, sale and use of 19 types of identified single-use plastic items, which have low utility and high littering potential.
The nationwide ban on specific single-use plastic items came into effect on 1st July 2022. Thermocol items covered under the ban are plates, cups, glasses, cutlery items like forks, spoons, knives and trays, along with thermocol for decoration. Allowed alternatives to banned thermocol items include clay cups, bamboo/wooden cutlery and paper-based items.
Violation of the ban on specific thermocol items and other identified single-use plastic can lead to fines up to Rs. 1 lakh or a jail term of up to 5 years under Environment Protection Act, 1986.
The ban is enforced through national and state control rooms, enforcement teams and border checkpoints.
State-level Ban
Himachal Pradesh has banned disposable thermocol plates, cups, glasses and spoons under the HP Non-Biodegradable Garbage(Control) Act, 1995. The ban is in place since the year 2018.
In the year 2019, the Maharashtra Government banned specific thermocol products, including single-use items and decorations. In the year 2025, the Government of Gujarat imposed a complete ban on thermocol during the Ambaji Bhadarvi Poonam Fair.
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