What is BS 2571 –Flexible PVC compounds for moulding and extrusion about? 
Compounds made of homopolymers of vinyl chloride with added plasticizers are known as flexible PVC compounds.
BS 2571 is a European Standard that discusses flexible PVC compounds.
BS 2571 provides specifications for general-purpose flexible PVC compounds used for moulding and extrusion.
BS 2571 specifies the composition and property requirements for 12 types of general-purpose flexible PVC compounds M1 to M6 used for injection moulding, and E1 to E6 used for moulding and extrusion applications.
Who is BS 2571 - Flexible PVC compounds for moulding and extrusion for?  
BS 2571 on flexible PVC compounds for moulding and extrusion form is relevant to: 
- Manufacturers of thermoplastic materials and polymers
- Manufacturers of flexible PVC compound
- Product designers
- Specifiers
- Quality control and testing personnel 
- Industries including but not limited to automotive, footwear, electrical etc
- Regulatory authorities
- Local and national bodies
Why should you use BS 2571 - Flexible PVC compounds for moulding and extrusion? 
Flexible PVC compounds have become a more popular choice in modern times due to their cost-effectiveness, especially in the injection mouldings and extrusion processing sectors, as they provide excellent resistance to shock and traction.
BS 2571 provides requirements based on the classification of the products. Compounds are classified into 12 types, M1 to M6 and E1 to E6, for moulding and extrusion applications respectively.
BS 2571 provides guidelines for the prevention of colour fastness and colour bleeding. It also walks you through the physical properties of extrusion and moulding compounds.
Grading according to colour fastness has been introduced in BS 2571, while explaining the relationship between weathering and the different grades of colour fastness.
If you are a manufacturer of flexible PVC compounds used for moulding and extrusion, compliance with BS 2571 guidelines can ensure that your products meet the performance requirements of the end-product application.
