Permabond 737 Cyanoacrylate, toughened

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Permabond 737 Cyanoacrylate, toughened
Categories:	Polymer; Adhesive; Thermoset; Acrylic/Cyanoacrylate Adhesive
Material Notes:	PERMABOND® 737 is a toughened cyanoacrylate with improved impact and peel strength for maximum flexibility. Its increased temperature resistance and dark color make 737 suitable for a wide range of applications. It bonds rapidly to a variety of surfaces including aluminum, steel (both zinc-plated and uncoated), plastics and rubbers. Features & Benefits: Good gap fill (up to 0.5mm / 0.02”) Toughened and flexible Ease of use – no mixing or heat cure Black - so suitable for dark surfaces 100% reactive, no solvents Information provided by Permabond.
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Physical Properties	Original Value	Comments

Specific Gravity	1.10 g/cc	Uncured
Viscosity	2000 - 4000 cP @Temperature 25.0 °C	Uncured
Storage Temperature	2.00 - 7.00 °C

Mechanical Properties	Original Value	Comments
Hardness, Shore D	85	ISO 868
Tensile Strength	25.0 MPa	ISO 6922
Adhesive Bond Strength	>= 5.00 MPa	PC, Substrate Failure, Shear; ISO 4587
	>= 6.00 MPa	ABS, Substrate Failure, Shear; ISO 4587
	>= 6.00 MPa	PVC, Substrate Failure, Shear; ISO 4587
	13.0 - 15.0 MPa	Aluminum, Shear; ISO 4587
	19.0 - 23.0 MPa	Steel, Shear; ISO 4587
Impact	5.0 - 10	kJ/m² Adhesive Impact Strength; ASTM D950
Peel Strength	1.60 - 2.40 kN/m	ASTM D903

Electrical Properties	Original Value	Comments
Dielectric Constant	2.5 @Frequency 10000 Hz
Dielectric Strength	25.0 kV/mm

Thermal Properties	Original Value	Comments
CTE, linear	90.0 µm/m-°C
Thermal Conductivity	0.200 W/m-K
Maximum Service Temperature, Air	240 °F
Minimum Service Temperature, Air	-80.0 °F

Processing Properties	Original Value	Comments
Cure Time	5.00 - 10.0 sec	Phenolic, handling time
	10.0 - 15.0 sec	Buna N Rubber, handling time
	15.0 - 20.0 sec	Steel, handling time
	24.0 hour	full strength
	30.0 - 35.0 sec	Aluminum, handling time

Descriptive Properties
Appearance	Black	Uncured
Maximum Gap Fill (mm)	0.5
Strength Retention	10% at 150°C	Relative to 0°C
	100% at 0°C	Relative to 0°C
	50% at 100°C	Relative to 0°C
	75% at -50°C	Relative to 0°C
	90% at 50°C	Relative to 0°C

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PPERMA35 / 56143

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