PET stands for polyethylene terephthalate, a plastic resin and a form of polyester. Polyethylene terephthalate is a polymer that is formed by combining two monomers: modified ethylene glycol and purified terephthalic acid.
PET is the type of plastic labeled with the #1 code on or near the bottom of bottles and containers and is commonly used to package soft drinks, water, juice, peanut butter, salad dressings and oil, cosmetics and household cleaners.
PET is a popular package for food and non-food products. Manufacturers use PET plastic to package products because of its strength, thermo-stability and transparency. Customers choose PET because it is inexpensive, lightweight, resealable, shatter-resistant and recyclable.
Recycled polyethylene terephthalate (RPET) can be used to make many new products, including fiber for polyester carpet; fabric for T-shirts, long underwear, athletic shoes, luggage, upholstery andsweaters; fiberfill for sleeping bags and winter coats; industrial strapping, sheet and film; automotive parts, such as luggage racks, headliners, fuse boxes, bumpers, grilles and door panels; and new PET containers for both food and non-food products.
| || |
RPC ships these flakes in large sacks to plants throughout the world. Available in 5 different varieties:
HDPE stands for high-density polyethylene is a polyethylene thermoplastic made from petroleum labeled as #2 code, it is typically found in milk jugs, plastic bags and refillable plastic bottles. In addition to plastic lumber and recycled plastic furniture, recycled HDPE is used to manufacture lawn and garden products, buckets, crates, office products and automobile parts.
HDPE plastic has several properties that make it ideal as a packaging and manufacturing product. It’s stronger than standard polyethylene, acts as an effective barrier against moisture and remains solid at room temperature. It resists insects, rot and other chemicals. It is easily recyclable and can be used again and again. Recycled HDPE creates no harmful emissions during its production or during its use by the consumer. Also, HDPE leaks no toxic chemicals into the soil or water.
Polypropylene is a plastic polymer, of the chemical designation C3H6 labeled as # 5. It is used in many different settings, both in industry and in consumer goods. It can be used both as a structural plastic and as a fiber.
Polypropylene is often used for food containers, particularly those that need to be dishwasher safe. The melting point of polypropylene is very high compared to many other plastics, at 320°F (160°C), which means that the hot water used when washing dishes will not cause polypropylene dishware to warp. This contrasts with polyethylene another popular plastic for containers, which has a much lower melting point. Polypropylene is also very easy to add dyes to, and is often used as a fiber in carpeting which needs to be rugged and durable, such as the carpet one finds around swimming pools or paving miniature golf courses. Unlike nylon which is also often used as a fiber for rugged carpeting, polypropylene doesn't soak up water, making it ideal for uses where it will be constantly subject to moisture.