- Polymer Name:Thermoset Polyester
- Chemical Family:Polyesters, Bisphenols
FILCO® 9663 is an unsaturated polyester resin that comes in powdered form, presenting as a light yellow, free-flowing powder. Notably, it boasts a very high molecular weight and demonstrates rapid solubility in styrene. It exhibits robust binding strength, especially in 'hot melt' operating conditions, and showcases excellent compatibility with unsaturated polyester matrices.