Park Aerospace Nelcote® F-529 Phenolic Prepreg, 7781 E-Glass Reinforced

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Park Aerospace Nelcote® F-529 Phenolic Prepreg, 7781 E-Glass Reinforced
Categories:	Polymer; Thermoset; Phenolic
Material Notes:	Nelcote® F-529 is a non-halogenated phenolic resin designed specifically for use in aircraft and mass-transit interior laminate and sandwich panels. F-529 was formulated for applications requiring non-halogenated FST (flame, smoke, toxicity) performance. Key Features and Benefits: Self-Adhesive resin system for sandwich panel applications Non-Halogenated and antimony-free resin formulation Excellent FST performance Low OSU heat-release (< 20/20) Good Tack and Drape properties White color after cure for superior cosmetics Applications/Qualifications: Aircraft Interiors Mass-Transit Interiors Meets all requirements of: FAR 25.853 FAR 25.856 ATS 1000.001 OSU 1990 Information provided by Park Electrochemical Corp.
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Physical Properties	Original Value	Comments

Volatiles	<= 3.5 % @Temperature 135 °C	8 min

Mechanical Properties	Original Value	Comments
Tensile Strength, Yield	310 psi @Temperature 23.9 °C	Flatwise; Dry; MIL-STD 401
	340 psi @Temperature 23.9 °C	Flatwise; Dry; MIL-STD 401
	42000 psi @Temperature 71.1 °C	0° Direction, Dry; Autoclave, 50 psi, 90min; ASTM D638
	54000 psi @Temperature 23.9 °C	0° Direction, Dry; Oven Cure, 90min, 260°F; ASTM D638
	60000 psi @Temperature 23.9 °C	0° Direction, Dry; Autoclave, 50 psi, 90min; ASTM D638
Tensile Modulus	3200 ksi @Temperature 71.1 °C	0° Direction, Dry; Autoclave, 50 psi, 90min; ASTM D638
	3400 ksi @Temperature 23.9 °C	0° Direction, Dry; Oven Cure, 90min, 260°F; ASTM D638
	3600 ksi @Temperature 23.9 °C	0° Direction, Dry; Autoclave, 50 psi, 90min; ASTM D638
Compressive Strength	30.0 ksi @Temperature 71.1 °C	Dry; Autoclave, 50 psi, 90min; ASTM D695
	48.0 ksi @Temperature 23.9 °C	Dry; Oven Cure, 90min, 260°F; ASTM D695
	62.0 ksi @Temperature 23.9 °C	Dry; Autoclave, 50 psi, 90min; ASTM D695
Compressive Modulus	2700 ksi @Temperature 71.1 °C	Dry; Autoclave, 50 psi, 90min; ASTM D695
	3500 ksi @Temperature 23.9 °C	Dry; Oven Cure, 90min, 260°F; ASTM D695
	3600 ksi @Temperature 23.9 °C	Dry; Autoclave, 50 psi, 90min; ASTM D695
Shear Strength	5.30 ksi @Temperature 23.9 °C	Interlaminar; Dry; Autoclave, 50psi, 90min; ASTM D2344

Optical Properties	Original Value	Comments
Optical Density	2.0	Dm, Non-Flaming Mode; FAR 25.853, Part 25 Appendix F, Part V
	6.0	Dm, Flaming Mode; FAR 25.853, Part 25 Appendix F, Part V

Processing Properties	Original Value	Comments
Gel Time	7.00 min
Shelf Life	6.00 Month @Temperature 4.44 °C

Descriptive Properties
Burn Length (in)	2.5	Vertical Burn, 60 sec; FAR 25.853, Part 25 Appendix F, Part I (b) (4)
Climbing Drum Peel (in-lb/3in)	10	ASTM D1781; Dry, 75°F; Oven Cure, 90min, 260°F
	16	ASTM D1781; Dry, 75°F; Autoclave, 50psi, 90min
Drip	None	Vertical Burn, 60 sec; FAR 25.853, Part 25 Appendix F, Part I (b) (4)
Fabric Area Weight (g/m²)	300
Heat Release, Peak (KW/m²)	17	FAR 25.853 Part 25 Appendix F, Part IV
Heat Release, Total (KW-min/m²)	6	FAR 25.853 Part 25 Appendix F, Part IV
Long Beam Flexure (in-lb/in)	148	Dry, 75°F; Autoclave, 50psi 90min
Prepreg Resin Content (%)	41-47
Resin Flow (%)	25	260°F, 150psi
Self Extinguish Time (sec)	0	Vertical Burn, 60 sec; FAR 25.853, Part 25 Appendix F, Part I (b) (4)

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