Kydex® 1900 Mid Temperature Aircraft Grade

Kydex® 1900 Mid Temperature Aircraft Grade – Kydex 1900 is a proprietary acrylic/PVC thermoplastic sheet with improved heat distortion temperature for higher in-service temperatures. It meets Federal Aviation Regulation (FAR) 25.853(a) for vertical burn and is available in a wide range of textures, colors, thicknesses, and sheet sizes. Maximum recommended service temperature is approx. 168 – 178°F (75.5-81°C) depending on thermoforming technique and application.

Kydex 1900 sheet is designed primarily for use in small aircraft interiors but also is appropriate for other applications where higher in-service temperatures may occur. Aircraft interior components examples include: air ducts, window reveals, instrument panels, toilet shrouds, armrests, etc.

Kydex 1900 is available in gauges from .040″ (1.02mm) in a wide range of distinctive textures and many popular colors.
Kydex 1900 meets the requirements of the Federal Aviation Administration paragraphs a1ii and a1i in all gauges for vertical burn.

Heat Distortion Temperature (HDT), which is one measure of the material’s maximum service temperature is 168°F (75.5°C) unannealed at 264 psi (1.8MPa) and a high 178°F (81°C) after annealing. In-use temperatures should not exceed this range of temperature. The affect of temperature on a material is highly dependent on part size, internal stresses, and loadings.

Excellent forming properties result in uniform wall thicknesses and crisp detail, plus easy machining and fabricating using conventional methods, further expanding finished part possibilities.

Specific Gravity ASTM D-792 1.35
Tensile Strength, psi (MPa) ASTM D-638 6,100 (41)
Elongation at Break, % 100
Flexural Strength, psi (MPa) ASTM D-790 10,000 (69)
Modulus / Elasticity, psi (Mpa) 365,000 (2517)
Rockwell Hardness, R ASTM D-785 108
Notched Izod Impact Resistance, 73°F (23°C),ft-lbs/in (J/m) ASTM D-256 7-9
Heat Deflection Temperature, HDT, @264psi (1.8 MPa), annealed,°F (°C) ASTM D-648 173° (81°C)
Heat Deflection Temperature, HDT, @264psi (1.8 MPa), unannealed,°F (°C) 168° (75.5°C)
Flammability Resistance2 FAR 25.853a
(Replaces par b)
Thermoforming Temp, °F (°C) 325° – 390°F (163-200°C)
Mold Shrinkage 0.4 – 0.6
1All values based on 0.125″ (3.12mm) sheet unless otherwise specified.
2In all gauges 0.028″ (.71mm) and above. Not intended for specification purposes.
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