A range of additives are used to enhance the natural properties of the different types of plastics - to soften them, colour them, make them more processable or longer lasting. Today not only are there are many, many different types of plastic , but products can be made rigid or flexible, opaque, transparent, or coloured; insulating or conducting; fire-resistant etc., through the use of additives.
For more information on the full list of additives click on one of the links below to go to Plastipedia, the world's largest plastics encyclopedia published by the BPF
List of additives: