Permabond TA440 Toughened Acrylic Adhesive

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Permabond TA440 Toughened Acrylic Adhesive
Categories:	Polymer; Adhesive; Thermoset; Acrylic/Cyanoacrylate Adhesive
Material Notes:	PERMABOND TA440 is a two component structural acrylic adhesive suitable for bonding metals, glass, wood, ferrites, ceramics and some rigid plastics. This adhesive may be used in a variety of structural bonding applications due to its versatile performance capabilities. Permabond TA440 provides high strength while maintaining excellent flexibility, resulting in tough, durable bonds with outstanding impact and peel resistance. Handling strength is achieved in a few minutes at room temperature. Mix Ratio 1:1 Features & Benefits: Adhesion to a wide variety of substrates Fast cure at room temperature No mix application High shear and peel strength Good impact strength Good chemical resistance Information provided by Permabond.
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Physical Properties	Original Value	Comments

Density	1.10 g/cc	TA440A
	1.10 g/cc	TA440B
Viscosity	8000 - 12000 cP @Temperature 25.0 °C	TA440A
	8000 - 12000 cP @Temperature 25.0 °C	TA440B
Storage Temperature	5.00 - 25.0 °C

Mechanical Properties	Original Value	Comments
Tensile Strength	25.0 MPa	DIN 53288
Adhesive Bond Strength	15.0 - 25.0 MPa	Mild steel, Shear
Impact	25	kJ/m² Adhesive Impact Strength; ASTM D950
Peel Strength	1.80 - 2.60 kN/m	ISO 4578

Electrical Properties	Original Value	Comments
Volume Resistivity	2.00e+13 ohm-cm	ASTM D257
Dielectric Constant	4.6 @Frequency 1e+7 Hz	ASTM D150
Dielectric Strength	30.0 - 50.0 kV/mm	ASTM D149

Thermal Properties	Original Value	Comments
CTE, linear	80.0 µm/m-°C	ASTM D696
Thermal Conductivity	0.100 W/m-K	ASTM C177
Maximum Service Temperature, Air	250 °F
Minimum Service Temperature, Air	-65.0 °F

Processing Properties	Original Value	Comments
Cure Time	0.500 - 1.00 hour	working strength
	24.0 hour	full cure
	<= 30.0 sec	Handling time
Shelf Life	12.0 Month

Descriptive Properties
Appearance	Amber for TA440A
	Green for TA440B
Maximum Gap Fill (mm)	0.5
Strength Retention	100% at 0°C	Relative to 0°C
	15% at 175°C	Relative to 0°C
	22% at 150°C	Relative to 0°C
	75% at 100°C	Relative to 0°C
	96% at 50°C	Relative to 0°C

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PPERMA68 / 56176

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