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What is high density polystyrene used for?

High Impact Polystyrene uses Thanks to its strength and durability, the thermoplastic is ideal for marketing purposes and is often used for Point of Sale displays, handling trays, and promotional signage. It can also be used for thermoformed machine housing and parts, model making and plastic toys.

Is there a difference between polystyrene and Styrofoam?

Styrofoam is a form of polystyrene. The key difference between polystyrene and Styrofoam is that the polystyrene is a form of synthetic aromatic hydrocarbon polymer whereas the Styrofoam is a commercial brand of polystyrene.

Why is polystyrene foam banned in New York?

When polystyrene foam ends up as litter in the environment, it can persist for a long time and may also become microplastic pollution. For these reasons, certain expanded polystyrene foam products will be banned in New York to protect the environment, our communities, and to support sustainable materials management.

What are the disadvantages of high impact polystyrene?


  • Brittle, poor chemical resistance especially to organics.
  • Susceptible to UV degradation.
  • Flammable.

Is high impact polystyrene toxic?

High impact polystyrene called HIPS is a tough version of the plastic, being visually attractive and hygienic. Being completely non-porous, high impact polystyrene protects food from germs and bacteria, keeping contaminants outside. HIPs is completely non-toxic and odourless making it ideal for the food industry.

Is extruded polystyrene foam waterproof?

Polyiso and extruded polystyrene foam boards have the strongest waterproof properties. Foam boards that are treated with a foil vapor barrier are the best in terms of preventing moisture from reaching surfaces. EPS is susceptible to crumbling and absorbs more moisture.

What is the strongest Styrofoam?

Duramate™ Plus is a Styrofoam™ Brand extruded polystyrene (XPS) foam insulation, designed for residential home construction. It is DuPont’s strongest XPS foam insulated sheathing, with proprietary extra-tough plastic on both sides.

Is polystyrene hard or soft?

A few other facts about polystyrene are that the solid form of it is hard plastic that has little to none flexibility. Typically solid polystyrene also can be used to make molds with very fine detail in them. Another thing is that polystyrene can be transparent or have multiple different colors on it.

Why is polystyrene so bad?

Styrene (a component of polystyrene) is a harmful chemical that can leech into food and drink. Even worse, styrene is classified as a carcinogen to humans according to the National Research Council. Back in 1986, a study by the EPA detected Styrene in 100% of human tissue and breast milk samples.

Is polystyrene toxic to humans?

Polystyrene foam contains likely cancer-causing chemicals that can leach into the food and drinks they hold, making them dangerous to consumers. Heating up polystyrene foam containers can cause the styrene to leach into the food or drinks. This toxin has no place in our bodies, schools, restaurants or homes.

What is high density EPS foam?

High Density (HD) Envirosheet is a high density economical foam board insulation made from Expanded Polystyrene (EPS) offering a high R-value per dollar.

What is the density of EPS foam?

EPS Foam in Manufactured in Many Different Densities, and some EPS manufacturers produce their foam in 1 pound, 1.25, 1.5, 2 and 3 pound densities. If you place one cubic foot of EPS foam on a scale and it weighs 1 pound, then it is considered to be one pound density.

What are EPS foam sheets?

You are here: Home > EPS FOAM SHEETS. Expanded Polystyrene (EPS) Sheets – have hundreds of uses including cold chain custody packaging needs. EPS is used in wall insulation, roofing, subfloors, medical product transport and perishable food transport.

What is high density insulation?

High Density or Compact insulation has a smaller thickness which allows the needed air gap between insulation and roof sheeting that most codes require. This compact thickness is needed to install R-38 to fit 2 x 12 framing typically found in vaulted or cathedral ceilings.