Example applications Vacuum Casting Polyurethane: 8263 A rigid, superior strength white resin with excellent impact resistance. Can be coloured. Certified fire retardant UL94V-0. “Rigid. Industrial. Multi-purpose.” Ultimate tensile strength 68 N/mm² Heat deflection 80ºC Impact resistance 10 kJ/m² Elongation at break 15% Properties Air flow prototyping Interior trim Housing