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Plastics Explained

PartyPlastics are able to provide an extensive range of high quality disposable, recyclable and unbreakable glasses, all of which are an excellent replacement for real glass.

Plastic Explained

Acrylic Plastic

Resin identification Code: 7

Acrylic is a heavy, reusable rigid plastic. Products made from this product are usually moulded in the Far East for the household market.

Crystal Polystyrene

Resin identification Code: 6

Plastic glasses made with the same material as CD cases. Disposable glasses will break if dropped onto a hard surface or stood on. Reusable products are fairly tough but will crack if too much pressure is exerted on it. They are made with a thicker, hard walled crystal polystyrene plastic which is dishwasher safe in excess of 100 washes and heat resistant to 100 Celcius.


Melamine is a thermosetting plastic. It is strong, lightweight and hard, but can be scratched or broken or cracked. It resists acids and alkalies, and most food stains but can be stained. It also stands fairly warm temperatures, but absorbs heat and softens if it gets too hot so cannot be used in microwave ovens. It's used for dinnerware, mixing bowls, laminated counter tops, and other items. Melmac is a common trade name.

Avoid exposure to hot objects, and prolonged exposure to boiling water. Stains may be removed with commercial cleaners made for melamine. Never use scouring powder or any other abrasive.

Polyethylene Terephthalate - PET / RPET

Resin identification Code: 1

A popular package for food and non-food products. Most commonly used to soft drinks, juice, water and oven ready trays. Manufacturers use PET plastic to package products because of its strength, thermo-stability and transparency. It is also lightweight, resalable, shatter-resistant and recyclable.

Recycled PET (RPET) is environmentally friendly and is easier to recycle than normal plastics because it can be recycled alongside most plastic recycling. It is wear resistant and tolerant to higher temperatures preventing it from cracking under pressure.

Polycarbonate (Virtually Unbreakable)

Resin identification Code: 7

Polycarbonate plastic glasses are quite simply the toughest, safest plastic glasses on the market. They have an amazingly glass-like feel. They feel substantial in the hand and keep drinks colder longer because of its superior insulating properties. Polycarbonate glasses can be washed up to 500 times in a glass-washer (using a recognised glass detergent such as Finish) without showing signs of degradation. They are heat resistant up to 145 degrees C. Food and Drug Approved.

High Density Polyethylene - HDPE

Resin identification Code: 2

Flexible, translucent, waxy and weatherproof. Good low temperature toughness to -60' and good chemical resistance.

Polylactic Acid - PLA

PLA is sometimes known as Bio Plastic, is a transparent plastic produced from cane sugar or glucose. It resembles conventional petrochemical mass plastics like PE or PP in its characteristics. Biodegradable bioplastics such as PLA are commonly used in the production of disposable items, such as packaging and catering items (crockery, cutlery, pots, bowls, straws). They are also often used for bags, trays, containers for fruit, vegetables, eggs and meat, bottles for soft drinks and dairy products, and blister foils for fruit and vegetables.

PLA is biodegradable in commercial composters and a more environmentally friendly product than many oil based plastics used in plastic glasses.


Resin identification Code: 4

Plastic glasses made from polypropylene are disposable, flexible and slightly opaque. Manufactured and packed for maximum hygiene these glasses are a popular choice for large events and festivals. They are cheap and are designed to be used once and then discarded.

Polyvinyl Chloride - PVC

A major plastics material used in building, transport, packaging, electrical and healthcare applications. It is very, can be rigid or flexible and any colour. Used as a lining in some of our paper cups to make them more water proof.

Styrene Acrylonitrile - SAN

Resin identification Code: 7

A tough plastic that can take a lot of heavy use but it will break under heavy pressure. These plastic glasses are generally recommended for household or restaurant use. It is glass and dishwasher safe. This plastic can stand temperatures of up to 100 C.

There are now commercial companies that will pay you take away these plastics away.

If you have any more questions, or need help in selecting the right type of plastic glass for your event or venue, please contact us.

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