Last-A-Foam 4.5 Lb 3/4X24X96

LAST-A-FOAM® FR-3704.5 is a rigid, closed-cell, flame-retardant polyurethane foam sheet from the FR-3700 Performance Core range. This 4.5 lb/ft³ grade is supplied in a large sheet format measuring 19 × 610 × 2,438 mm.

The fine cellular structure provides a high strength-to-weight material that can be shaped and machined using common woodworking or standard high-speed steel cutting tools. The closed-cell construction offers resistance to water absorption, while the material is also described by the manufacturer as resistant to most chemicals and solvents.

• Manufacturer part number: FR-3704.5
• Material: rigid, closed-cell, flame-retardant polyurethane foam
• Sheet dimensions: 19 × 610 × 2,438 mm
• Nominal density designation: 4.5 lb/ft³
• Suitable for fabrication where a lightweight, machinable foam core material is required

Please verify material suitability, drawing requirements and applicable airworthiness requirements for the intended installation or fabrication process.

Manufacturer documentation: LAST-A-FOAM® FR-3700 Product Data Sheet and FR-3700 Technical Data Sheet (metric).