I could be wrong, but No resin is needed to make Polystyrene hard.
Polystyrene is a thermoplastic substance, which is in solid (glassy) state at room temperature, but flows if heated above its glass transition temperature (for molding or extrusion), and becoming solid again when cooling off.
source: http://en.wikipedia.org/wiki/Polystyrene
it blocks out sound.
Water softeners typically use ion exchange resin made from polystyrene to remove mineral ions like calcium and magnesium from hard water. These resins are negatively charged and attract positively charged mineral ions, allowing them to be removed from the water.
To make paper hard and waterproof, you can coat it with a layer of resin or laminate it with a plastic film. This will help protect the paper from water damage and make it more durable.
Rigid polystyrene plastic is a closed cell of light weight, rigid & foam plastic that is derived from petroleum and natural gas by products. It is hard plastic in one word. This is used to make plastic containers and insulators. On the other hand, expanded polystyrene is derived by expanding the regular foam molecules by 50 times their volume using a blowing agent (pentane gas). This is used to make packaging materials. Source: http://www.polystyrene.uk.com/
Polystyrene can be used in various industries like Polystyrene Packaging, Construction, Display, Exhibition, Signs, and all areas of the foam industry. Various different items can be produced from polystyrene. For a complete range and details about products please visit: http://www.polystyrene.uk.com/
To make resin opaque, you can add opaque pigments or powders to the resin before it cures. Mix the pigment thoroughly into the resin until you achieve the desired level of opacity.
The most recent and safest additive that has been used to make polystyrene biodegradable is sugar, first used by chemists in India.
The law of polystyrene affects consumers because of the chemmicals inside the material and the polystyrene is burned underground and the chmicals gets into the environment which can make consumers sick
Polystyrene. the opaque white cups that you can make fingernails impressions in, are foamed polystyrene. Clear sups that you get on an airplane are general-purpose polystyrene.
To make resin cure faster, you can try using a heat source like a heat gun or lamp, adding a catalyst or accelerator to the resin, or placing the resin in a warm environment.
Make it from polystyrene.
you pooby an 10 year old