PET has this common feels and feature: Clear, strong, and lightweight plastic widely used for food and beverage packaging such as softdrinks, juices, and drinking water.

HDPE has this common feels and feature: Nontransparent and stronger than PET plastic, widely used for containers of edible and non-edible products, cleaning products, synthetic oils and lubricants, and pipes.

LDPE has this common feels and feature: Semi-transparent or nontransparent, light, and flexible plastic used for wrapping of food and other items, or as shopping bags. Includes foams and bubble wrap.

PP has this common feels and feature: Semi-transparent or solid color, light, thin and a bit hard plastic. Creates a crunchy sound when crushing. Widely used for wrapping of food (solid or semi-liquid). Mostly used as microwavable food containers and caps for PET bottles and beverage boxes

Clear, hard, light, and rather brittle. Polystyrene can be in hard solid or soft foam form. Usually used as food and beverage container with built-in insulation, and general-purpose Styrofoam.

Usually has a silver or gray later of thin plastic in a form of film or foil, widely used as sachets and ‘doypacks’ for food and non-food packaging.