Stabilisers are added to PVC to allow its processing and to improve its resistance especially in outdoor applications, weathering and heat ageing and have an important influence on the physical properties of PVC finished articles. Factors such as process technology involved, technical requirements of PVC end product, regulatory requirements and cost, influence the choice of the stabiliser used.
Stabilisers are categorized as follows:
- Calcium based stabilisers used in food contact & medical applications, plus all lead replacement systems
- Liquid stabilisers used in a wide range of flexible PVC, calendered sheets, flooring
- Tin stabilisers used primarily in rigid applications including food contact use
- Lead stabilisers mainly used in pipes and profiles
For information: