Polystyrene vs. Styrofoam: Know the Difference

By Shumaila Saeed || Updated on December 25, 2023

Polystyrene is a synthetic aromatic polymer, while Styrofoam is a trademarked brand of extruded polystyrene foam.

Polystyrene vs. Styrofoam

Key Differences

Polystyrene is a plastic material made from styrene monomers, widely used in various forms. Styrofoam, on the other hand, is a specific type of polystyrene foam created by the Dow Chemical Company, primarily used for insulation and craft applications.

Dec 17, 2023

Polystyrene is used in multiple applications like packaging, disposable cutlery, and CDs. Styrofoam, with its lightweight and insulating properties, is extensively used in building insulation, flotation devices, and crafting.

Dec 17, 2023

Both Polystyrene and Styrofoam pose environmental concerns due to their non-biodegradable nature. However, Styrofoam, being bulkier, often faces more criticism for its environmental impact, especially in landfill spaces.

Dec 17, 2023

The production of polystyrene involves polymerization of styrene. Styrofoam is produced by extruding polystyrene in the presence of blowing agents, resulting in a light, airy material.

Dec 17, 2023

Polystyrene and Styrofoam have raised health concerns when used in food containers, as they can leach potentially harmful chemicals, especially when heated.

Dec 17, 2023

ADVERTISEMENT

Comparison Chart

Definition

A synthetic aromatic polymer.

A trademarked brand of extruded polystyrene foam.

Dec 17, 2023

Forms

Comes in solid or foam forms.

Primarily in foam form.

Dec 17, 2023

Usage

Used in a variety of products.

Often used for insulation and crafts.

Dec 17, 2023

Environmental Impact

Non-biodegradable, recycling challenges.

Bulkier, more visible in landfills.

Dec 17, 2023

Health Concerns

Potential chemical leach in food items.

Similar concerns, especially when heated.

Dec 17, 2023

ADVERTISEMENT

Polystyrene and Styrofoam Definitions

Polystyrene

Polystyrene is a lightweight plastic material.

Polystyrene cups are commonly used for hot drinks.

Dec 12, 2023

Styrofoam

Styrofoam is a trademarked form of extruded polystyrene foam.

The Styrofoam cooler kept our drinks cold during the beach trip.

Dec 12, 2023

Polystyrene

Polystyrene is used in both rigid and foam forms.

The rigid polystyrene sheet was used to create a durable sign.

Dec 12, 2023

Styrofoam

Styrofoam is known for its buoyancy and is used in flotation devices.

The life jacket was filled with Styrofoam to keep it afloat.

Dec 12, 2023

Polystyrene

Polystyrene is a versatile plastic used in various applications.

Disposable polystyrene plates are popular at picnics and outdoor events.

Dec 12, 2023

ADVERTISEMENT

Styrofoam

Styrofoam is lightweight and used for insulation.

Styrofoam insulation was installed to improve the home's energy efficiency.

Dec 12, 2023

Polystyrene

Polystyrene is a clear, hard, and brittle plastic.

The clear polystyrene box protected the delicate electronics during shipping.

Dec 12, 2023

Styrofoam

Styrofoam is resistant to moisture and decay.

Styrofoam is often used in outdoor signs due to its durability against the elements.

Dec 12, 2023

Polystyrene

Polystyrene is a polymer made from styrene monomers.

Polystyrene is often used in model building due to its easy-to-cut nature.

Dec 12, 2023

Styrofoam

Styrofoam is often used in crafting and modeling.

The artist carved intricate designs into the Styrofoam block.

Dec 12, 2023

Polystyrene

A rigid clear thermoplastic polymer of styrene that can be molded into objects or made into a foam that is used as thermal insulation.

Dec 10, 2023

Styrofoam

Expanded polystyrene foam, such as is used in cups and packaging.

Dec 10, 2023

Polystyrene

(organic chemistry) A vinylic polymer of styrene, CH₂CHphenyl.

Dec 10, 2023

Styrofoam

A light resilient foam of polystyrene

Dec 10, 2023

Polystyrene

(organic chemistry) An alkane chain of benzene molecules, RCH₂CHphenylR.

Dec 10, 2023

Polystyrene

A polymer of styrene; a rigid transparent thermoplastic;

Expanded polystyrene looks like a rigid white foam and is used as packing or insulation

Dec 10, 2023

Repeatedly Asked Queries

What is Styrofoam?

Styrofoam is a trademarked brand of extruded polystyrene foam.

Dec 17, 2023

Is Styrofoam safe for use in microwaves?

Generally, it is not recommended due to potential chemical leaching.

Dec 17, 2023

Can Polystyrene be used for food packaging?

Yes, it is commonly used, but there are health concerns, especially with hot foods.

Dec 17, 2023

What is Polystyrene?

Polystyrene is a synthetic aromatic polymer made from styrene monomers.

Dec 17, 2023

Is Styrofoam biodegradable?

No, Styrofoam is not biodegradable and can persist in the environment for a long time.

Dec 17, 2023

What are the environmental impacts of Styrofoam?

It contributes to landfill waste and marine pollution.

Dec 17, 2023

How is Styrofoam produced?

By extruding polystyrene with blowing agents to create foam.

Dec 17, 2023

Are Polystyrene and Styrofoam the same?

No, Styrofoam is a type of polystyrene foam, but not all polystyrene is Styrofoam.

Dec 17, 2023

Is Polystyrene recyclable?

Yes, but it can be challenging due to contamination and logistical issues.

Dec 17, 2023

Can Styrofoam be reused?

Yes, but its applications in reuse are limited.

Dec 17, 2023

What are the health risks of Polystyrene?

Potential risks include chemical leaching and inhalation of dust during cutting.

Dec 17, 2023

Is Polystyrene toxic?

It can release toxic substances, especially when burned.

Dec 17, 2023

What is the future of Polystyrene and Styrofoam use?

It's shifting towards more sustainable alternatives due to environmental concerns.

Dec 17, 2023

What are common uses of Polystyrene?

Packaging, disposable cutlery, CD cases, and insulation.

Dec 17, 2023

How does Styrofoam affect wildlife?

It can be ingested by animals, leading to health issues and death.

Dec 17, 2023

Can Polystyrene be used in construction?

Yes, especially in insulation and lightweight concrete production.

Dec 17, 2023

Is Styrofoam waterproof?

Yes, it is resistant to water, making it useful in moist environments.

Dec 17, 2023

Why is Styrofoam banned in some places?

Due to environmental and health concerns.

Dec 17, 2023

How is Polystyrene produced?

By polymerizing styrene monomers.

Dec 17, 2023

Are there alternatives to Polystyrene for packaging?

Yes, such as cardboard, bioplastics, and recycled materials.

Dec 17, 2023

Share this page

Link for your blog / website

HTML

Link to share via messenger

Teacher vs. Instructor

Polystyrene vs. Styrofoam

Metallic Minerals vs. Non Metallic Minerals

Polystyrene vs. Styrofoam

About Author

Written by

Shumaila Saeed, an expert content creator with 6 years of experience, specializes in distilling complex topics into easily digestible comparisons, shining a light on the nuances that both inform and educate readers with clarity and accuracy.

Trending Comparisons

Meshuga vs. Mashugana

Meshuga vs. Mashugana

June 24, 2025

Meshuga refers to someone being crazy in a lighthearted or humorous way, while Mashugana is a misinterpretation or less common variation of the word, both rooted in Yiddish.

Duplicate vs. Replicate

Duplicate vs. Replicate

May 24, 2026

Duplicate means to create an exact copy, focusing on identicalness, while replicate emphasizes reproducing the essence or function, often in a scientific context.

Border vs. Boundary

Border vs. Boundary

December 11, 2025

A border is a line that marks the edges between countries, while a boundary delineates limits within countries, properties, or concepts.

Company vs. Factory

Company vs. Factory

May 8, 2026

A company is a business entity engaged in commercial, industrial, or professional activities, while a factory focuses on manufacturing goods through mass production.

Nightingale vs. Mockingbird

Nightingale vs. Mockingbird

April 21, 2026

Nightingales are known for their rich, melodious night songs, specializing in their own tunes, while mockingbirds mimic sounds from their surroundings, showcasing a wide repertoire of imitated songs.

Closet vs. Dresser

Closet vs. Dresser

December 5, 2025

A closet is a tall, enclosed storage space usually built into a room's walls for hanging or storing clothes, while a dresser is a piece of furniture with drawers for keeping clothes and often has a flat top for items.

Royal Blue vs. Cobalt Blue

Royal Blue vs. Cobalt Blue

March 20, 2026

Royal Blue is a deep, vivid shade of blue with a hint of purple, symbolizing richness and sophistication, while Cobalt Blue is a slightly brighter blue with a hint of green, known for its striking vibrancy and clarity.

Infection vs. Disease

Infection vs. Disease

May 18, 2026

An infection is the invasion and multiplication of microorganisms in the body, while a disease is a condition disrupting normal body functions, often caused by infections, genetics, or environmental factors.

Respective vs. Perspective

Respective vs. Perspective

May 17, 2026

Respective refers to relating to each person or thing mentioned separately, whereas perspective is one's viewpoint or angle on a subject.

Humans vs. Aliens

Humans vs. Aliens

July 9, 2025

Humans are Earth's native species, known for their cultural diversity and biological adaptability, whereas aliens, as hypothetical beings, are often imagined with advanced technology and diverse forms in science fiction.

Static Websites vs. Dynamic Websites

Static Websites vs. Dynamic Websites

April 19, 2026

Static websites deliver fixed content from server files as-is to each user, while dynamic websites generate content in real-time based on user interactions or other factors.

Sentence vs. Utterance

Sentence vs. Utterance

June 27, 2025

A sentence is a grammatically complete series of words conveying a statement, question, exclamation, or command, while an utterance is any spoken word, phrase, or sound.

Smarter vs. More Smart

Smarter vs. More Smart

September 25, 2025

"Smarter" is the comparative form of "smart," commonly used in English; "more smart" is a less standard comparative form used for emphasis or stylistic reasons.

Treble vs. Bass

Treble vs. Bass

July 14, 2025

Treble refers to higher frequencies in sound, producing a sharp, clear tone, while Bass encompasses lower frequencies, giving a deep, resonant sound.

Strive vs. Thrive

Strive vs. Thrive

October 25, 2025

Strive involves making efforts towards a goal, while thrive denotes flourishing or prospering, often naturally.

Sneakers vs. Sports Shoes

Sneakers vs. Sports Shoes

May 7, 2026

Sneakers are casual, versatile footwear designed for everyday use, while sports shoes are specialized for specific athletic activities, focusing on performance and support.

Chimpanzee vs. Gorilla

Chimpanzee vs. Gorilla

June 22, 2025

Chimpanzees are smaller, more agile primates known for their complex social structures and use of tools, while gorillas are the largest primates, exhibiting remarkable strength and living in more stable family groups.

Palm Tree vs. Coconut Tree

Palm Tree vs. Coconut Tree

May 22, 2026

Palm trees are a diverse group of plants that include many species, while coconut trees are a specific type of palm tree known for producing coconuts. Coconut trees are characterized by their tall, slender trunks and large, feather-like leaves.

Sea Salt vs. Rock Salt

Sea Salt vs. Rock Salt

May 21, 2026

Sea salt is produced through the evaporation of seawater, offering a complex flavor profile, while rock salt is mined from salt deposits, known for its larger crystals and purity.

Saudi Arabia vs. UAE

Saudi Arabia vs. UAE

September 19, 2025

Saudi Arabia is largest country in the Middle East, known for its oil wealth and conservative Islamic culture, whereas UAE, federation of seven emirates, is renowned for its progressive cities like Dubai and Abu Dhabi, blending modernity with tradition.

NFC vs. AFC

May 12, 2026

NFC and AFC are conferences in the NFL, focusing on geographical division; NFC teams are historically from the older NFL, while AFC teams originated from the AFL.

Cliff vs. Bluff

Cliff vs. Bluff

November 1, 2025

A cliff is a steep, high rock face, often along coastlines or mountains, while a bluff is a broad, rounded cliff often overlooking a river, valley, or other flat areas, with a steep face and a relatively flat top.

Metro vs. Train

Metro vs. Train

October 11, 2025

Metro refers to an urban railway system for cities, typically underground; a train is a set of rail vehicles on railways, used for long or short distances.

SIT vs. UAT

August 27, 2025

SIT (System Integration Testing) focuses on verifying interactions between modules, while UAT (User Acceptance Testing) ensures the system meets user requirements and expectations.

Featured Comparisons

Helicopter vs. Chopper

Helicopter vs. Chopper

Hard Copy vs. Soft Copy

Hard Copy vs. Soft Copy

Fate vs. Destiny

Fate vs. Destiny

Cuddle vs. Snuggle

Cuddle vs. Snuggle

Coyote vs. Jackal

Coyote vs. Jackal