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Last-A-Foam FR-6718

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Part# 01-01699
MFR Model# FR-6718

Overview

FR-6700 Aerospace Grade is a CFC-free, rigid, closed-cell, flame-retardant polyurethane foam available in densities ranging from 10 to 25 pounds per cubic foot. It exhibits a high strength-to-weight ratio because of its cellular structure and cross-linked resin. Its closed-cell structure also makes this rigid polyurethane foam series highly resistant to water absorption, so it will not swell, crack or split on exposure to water. The HDU material is stable, inert and resistant to most chemicals and solvents. These characteristics make it an excellent replacement for wood. This series is non-abrasive and can be machined with standard high-speed steel (HSS) cutting tools. It can also be cut cleanly with water jets and traditional wood-carving tools. To save production time, General Plastics can pre-score FR-6700 boards for liquid resin infusion processes.

FR-6700 is specifically designed to satisfy the physical property, flammability performance and processing requirements of multiple aerospace and military specifications. These include Boeing BMS 8-133, McDonnell-Douglas DMS-1937, and Federal Aviation Regulation FAR 25.853 (a).

Features

  • Rigid and closed-cell
  • Flame-retardant
  • High strength-to-weight ratio resulting from cross-linked resin
  • Inert and resistant to most chemicals and solvents
  • Easily shaped with common woodworking tools
  • Temperature resistance from 250 to 275 deg
  • Available in low and high density
  • Max use temperature of 260 deg F (127 deg C)

Applications

  • Honeycomb edge closeout for aircraft interior sandwich core panels used in overhead storage bins, passenger cabin dividers, galleys, and lavatories
  • Models and design prototypes
  • Composite core, especially where flame retardation is important
  • Vacuum form dies and mold patterns
  • Marine walls, cabinets, and bulkheads
  • Transoms and stringers

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Please note, Aircraft Spruce Canada's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Canada assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.