3B Chopped Strands are glass fibres filaments chopped into a specified length and coated with a chemical sizing, which ensures the compatibility with the resin to reinforce. They are generally used to reinforce thermosplastic and thermoset resins using compounding, injection-moulding or compression processes. 3B Chopped Strands are engineered to offer excellent flow ability properties, very low level of fines fibres and then to improve processing productivity. Thermoplastic Chopped Strands 3B Thermoplastic Chopped Strands are reinforcements designed for use in thermoplastic polymer systems. They are designed to improve tensile and flexural resistance, to bring dimensional stability especially at high temperatures and to allow a much better control of the moulded part shrinkage.