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Q: How do you expand polystyrene beads?
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What is Polystyrene beads made from?

Yes, polystyrene beads are safe to use. One can learn more about polystyrene beads at popular on the web sources such as Tempo Foam, eHow, and Wise Geek.


What are dangers of polystyrene beads?

Polystyrene is today difficult to be recycled.


Are polystyrene beads dangerous?

Not unless they catch fire or get out of their container.


Where can you buy polystyrene beads in centurion south Africa?

Are you still seeking PS beads? If so how much, of what size and what is the application?


How is polystyrene processed?

Polystyrene (styrofoam) is extracted from oil. Thousands of small units of styrene, called monomers, link together to form large molecules of polystyrene by a process called polymerisation. Expanded polystyrene starts as small spherical beads with a typical diameter of 0.5-1.5mm. They contain an expanding agent; a pure hydrocarbon, which does not contain any halogens and does not damage the earth's protective ozone layer. When the beads are heated with steam, the agent starts to boil, the polymer softens and the beads expand to about forty times their initial size. After a maturing period to equilibrate temperature and pressure, the pre-foamed beads, which now have a closed cellular foam structure, are placed in a mould and again reheated with steam. The mould can be designed to meet any requirements of the customer. The pre-foamed beads expand further, completely fill the mould cavity and fuse together. When moulded, nearly all the volume of the EPS foam (in fact 98%) is air. This is what makes EPS so lightweight and buoyant. ---Shawn


Would polystyrene beads in a bed pillow be a health hazard?

For health hazards of polystyrene, type polystyrene in the ask box, go all the way down to the last definition. Click on the underlined words Health Hazards, and you have a full paragraph on polystyrene.


How do water beads grow?

well the beads start little. then when you put them in water the beads will upsorb the water and make the bead expand. thats how you make the water beads grow !


How do you separate polystyrene beads from small ball bearings?

easy the ball bearings are heavier so give it a shake and they will fall to the bottom and the polystyrene will go to the top or you could also use a magnet


What is in styrofoam cups?

Styrofoam cups are made of expanded polystyrene beads. The unexpanded beads (about the size of sand grains) are put in a mold then exposed to steam which expands them to grain of rice size and sticks the beads together into the finished product.


What is the reaction of polystyrene and acetone?

The mixture of Polystyrene and Acetone results in the creation of a sticky residue as the Polystyrene beads dissolve into the Acetone. You can use Nail polish remover with Acetone. However, the chemical reaction occurs at a much more rapid pace with pure Acetone.


What natural resource is Styrofoam made of?

Styrofoam is a plastic/petroleum product and starts off as a plastic pellet. Pellets are heated and expand to 40/50 times their original size, they are then cut into whatever product is required. The heated beads achieve a volume which is 98% air


What metal is dusted on a glass surface to make an Etch-a-sketch?

It is aluminum powder. The powder is mixed with polystyrene beads, which help distribute the powder. It's possible that the beads also create a little electrostatic charge, which makes the powder stick to the glass better.