2 Lb. Polyisocyanurate Foam SheetsOur 2 lb. cubic foot Polyisocyanurate Foam Sheets are best suited for moldless pattern making and for sandwich core applications where insulation is a factor. The properties of this foam are similar to those of our 2 lb. Mix and Pour Foam (#24 25), so it can be easily cut and shaped with a sharp knife or sandpaper. Sheets are rigid and available in a variety of thicknesses. Closed cell structure resists oil, gasoline, and water absorption. Glue sheets