APCM DA 4518 Epoxy Pregpreg System

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APCM DA 4518 Epoxy Pregpreg System
Categories:	Polymer; Thermoset; Epoxy
Material Notes:	Description: DA 4518 is an epoxy prepreg designed for a temperature range of -67°F (-55°C) to 350°F (177°C), with a cure of 250°F (121°C) for one hour and or a cure of 350º F (177ºC) for 1 hour. This material needs to be post cure or cured to 350ºF to get the 350º properties Mechanical Properties: The data supplied are averages obtained on 12 plies of DA 4518 on 7781 glass cured one hour at 250°F (121°C) with a heat up rate of 5° per minute from room temperature. Information provided by Adhesive Prepegs for Composite Manufacturers, LLC
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Physical Properties	Original Value	Comments

Volatiles	<= 1.0 %

Mechanical Properties	Original Value	Comments
Tensile Strength	69000 psi @Temperature 82.2 °C	ASTM D638
	72000 psi @Temperature 23.9 °C	ASTM D638
Tensile Modulus	4.30e+6 psi @Temperature 23.9 °C	ASTM D638
	4.50e+6 psi @Temperature 82.2 °C	ASTM D638
Flexural Strength	42000 psi @Temperature 177 °C	ASTM D790
	110000 psi @Temperature 82.2 °C	ASTM D790
	114000 psi @Temperature 23.9 °C	ASTM D790
	42000 psi @Temperature 177 °C, Time 86400 sec	ASTM D790
Flexural Modulus	4.60e+6 psi @Temperature 23.9 °C	ASTM D790
	4.60e+6 psi @Temperature 82.2 °C	ASTM D790

Processing Properties	Original Value	Comments
Cure Time	1.00 hour @Temperature 121 °C
Gel Time	10.0 min @Temperature 121 °C
Shelf Life	1.00 Month @Temperature 23.9 °C
	6.00 Month @Temperature 4.44 °C
	12.0 Month @Temperature -17.8 °C

Descriptive Properties
Form	Modified epoxy impregnated fabric
Resin Content	45-50%
Separator	Release paper and poly film

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PAPCM006 / 187019

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