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KYDEX® 5555

Low heat release aviation sheet

KYDEX® 5555 is specifically formulated to meet the safety needs of the aviation industry.

KYDEX® 5555 is a proprietary, high performance acrylic/PVC thermoplastic sheet that meets all fire retardancy requirements set forth in Federal Aviation Regulations 25.853 paragraphs (a) and (d) (old (c)) including low heat release (65/65) in the OSU rate of heat release test. KYDEX® 5555 exceeds the heat release to a level of 55/55. Its excellent properties make it the ideal material to form two-and-three-dimensional aircraft components.

  • Seat parts
  • Bulkhead laminates
  • Life vest shrouds
  • Passenger service units
  • Monitor shrouds
  • Armrests
  • Window shades
  • Moulding strips
  • Tray tables
  • Kick panels
  • Available in over 200 standard colors, a variety of surface textures, and eight thickness options ranging from 0.71 mm and up.
  • Highly resistant to a wide range of concentrated chemicals, making it easy to clean with strong cleaners such as Soft Scrub®, Fantastik®, and citrus-based products like Citri Kleen®. Avoid ammoniated cleaners, as they may leave a residue.
  • Meets the stringent requirements of FAR 25.853 paragraph (d) (replacing paragraph c) across all thicknesses and colors.

SEKISUI KYDEX®, LLC is committed to ensuring that its products can be manufactured, transported, stored, used, disposed and recycled with an appropriate regard for safety, health and environmental protection. We support the safe handling of our products. Please contact our Technical Service department at 800.682.8758 for resources or visit our website: http://www.kydex.com. For Material Safety Data Sheets, please call 800.325.3133.

Property Test Method Typical Value1
PHYSICAL
Specific Gravity ASTM D-792 1.52
Water Absorption, 24 hr ASTM D-570 0.09%
Rockwell Hardness, R-scale ASTM D-785 111
MECHANICAL
Tensile Strength ASTM D-638 43 MPa 6,180 psi
Tensile Modulus ASTM D-638 3,523 MPa 511,000 psi
Poisson’s Ratio ASTM D-638 0.37
Flexural Strength ASTM D-790 81.2 MPa 11,780 psi
Flexural Modulus ASTM D-790 3,866 MPa 556,000 psi
Compressive Strength ASTM D-695 66 MPa 9,550 psi
Compressive Modulus ASTM D-695 3,868 MPa 561,000 psi
Shear Strength ASTM D-732 50 MPa 7,220 psi
Bearing Strength, 4% Defelection ASTM D-953 37 MPa 5,390 psi
Bearing Strength, max ASTM D-953 207 MPa 30,000 psi
THERMAL
Heat Deflection Temperature (HDT) @ 264 psi (1.8 MPa) annealed ASTM D-648 75.9ºC 168.6ºF
Coeffecient of Thermal Expansion ASTM E-831 66.3 µm/m/°C 36.8 µin/in/°F
FLAMMABILITY2
Vertical Burn, 60-second FAR 25.853(a)(i) Pass
Vertical Burn, 12-second FAR 25.853(a)(ii) Pass
OSU Heat Release FAR 25.853 (d) Part IV Total: <55 kw/m2 Total: <55 kw/m2
NBS Smoke Density FAR 25.853(d) Part V Ds max <150
1 Values based upon 3.18mm (0.125”) sheet unless otherwise specified. 2 All thicknesses 0.71mm (0.028”) and above Not intended for specification purposes.