The new FAA fuselage “burn-through” barrier requirement for all new aircraft manufactured after September 1, 2009, specifies that insulation surrounding the cargo bay must be resistant to “burn-through” in an intense thermal environment like that of a fuel-fed fire. This new requirement drove commercial aircraft producers and insulation manufacturers to actively develop a new lightweight thermal acoustic blanket (TAB) insulation systems constructed with APTIV® PEEK-based covering film to meet the FAA’s new performance requirements while giving the airlines a lighter weight solution versus traditional PVF covering films.
“APTIV film laminates meet FAA FAR 25.856(a) radiant panel testing which mandates the improved resistance to flame propagation for thermal and acoustic insulation blankets,” said John Walling, Global Aerospace Marketing Manager at Victrex. “In addition, APTIV films can be laminated to specialized burn-through barrier systems that meet FAA FAR 25.856(b) resulting in a complete system that will meet the new FAA requirements.”
The APTIV film is lightweight; an important factor is reducing aircraft weight and increasing fuel economy. “Given rising fuel costs, the entire aircraft industry is very focused on improving aircraft fuel efficiency,” explained Walling. “APTIV film can be produced at 6µm (micron) thickness offering significant weight savings versus the existing 12µm PVF insulation systems. In addition to being thinner, APTIV film has lower specific gravity (1.26) versus traditional PVF film solutions (1.38-1.72) which results in a film that is more than 50% lighter while still maintaining all the necessary mechanical and flame characteristics.”
APTIV film is produced from VICTREX® PEEK polymer and provides all of the properties of VICTREX PEEK in a flexible format.
Parts for photography provided courtesy of Lamart Corporation.
• Good inherent permeation barrier properties
• High temperature performance
• Low moisture absorption
• Excellent wear and abrasion properties
• Broad chemical resistance
• Low smoke and toxic gas emissions
• Halogen free in accordance with IEC 61249-2-21
• Design flexibility, broad range of thicknesses
• Electrical stability
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