Master Bond EP62-1AO Two component epoxy resin system

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Master Bond EP62-1AO Two component epoxy resin system
Categories:	Polymer; Thermoset; Epoxy; Epoxy, Thermally Conductive
Material Notes:	Key Features: Long open time at room temperature Cures rapidly at moderate temperatures Superb physical strength profile Thermally conductive, electrically insulating Master Bond EP62-1AO is a two component, flowable epoxy system with an exceptionally long open time at ambient temperature. It has a forgiving 100 to 10 mix ratio by weight. The pot life of 100 grams is 12-14 hours. Typical cure schedule options are 4-6 hours at 140-160°F, 20-40 minutes at 175-200°F or 10-20 minutes at 250-300°F. To obtain optimum properties, post curing at 200-300°F for 2-4 hours is recommended. EP62-1AO gels at room temperature in about 24 hours and it will not reliquify when the elevated temperature is added to complete the cure. EP62-1AO bonds well to a wide variety of substrates including metals, glass, ceramics, composites and many plastics and rubbers. When compared to other thermally conductive epoxies, it is noteworthy that EP62-1AO has a better chemical resistance profile to acids, bases, and solvents. The service temperature range is -60°F to +450°F. The color of Part A is off white and Part B is dark brown. EP62-1AO is used for aerospace, electronic, optical, specialty OEM and related applications, particularly when high temperature resistance, thermal conductivity along with electrical insulation are required. Product Advantages: Forgiving 100 to 10 mix ratio by weight Long working life Versatile curing schedules Very good chemical resistance Wide service temperature range Low coefficient of thermal expansion Information provided by Master Bond Inc.
Vendors:	Master Bond is a leading manufacturer of adhesives, sealants, coatings and potting compounds. Master Bond’s vast product line consists of over 3,000 epoxy, polyurethane, silicone, cyanoacrylate and latex adhesives that vary in viscosity, cure speed, strength, chemical resistance, electrical properties, etc. Our custom adhesives offer design flexibility and provide excellent bonding performance. Visit www.masterbond.com. Click here to view all available suppliers for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Metric	English	Comments

Viscosity	100 - 1000 cP	100 - 1000 cP	Part B

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	80 - 90	80 - 90
Tensile Strength	34.5 - 41.4 MPa	5000 - 6000 psi
Elongation at Break	1.0 - 3.0 %	1.0 - 3.0 %
Tensile Modulus	4.14 - 4.48 GPa	600 - 650 ksi
Adhesive Bond Strength	5.52 - 6.89 MPa	800 - 1000 psi	Tensile Lap Shear; Al/Al

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 1.00e+14 ohm-cm	>= 1.00e+14 ohm-cm
Dielectric Constant	7.8 @Frequency 60 Hz	7.8 @Frequency 60 Hz

Thermal Properties	Metric	English	Comments
CTE, linear	18.0 - 21.0 µm/m-°C	10.0 - 11.7 µin/in-°F
Thermal Conductivity	1.30 - 1.44 W/m-K	9.00 - 10.0 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air	232 °C	450 °F
Minimum Service Temperature, Air	-51.0 °C	-59.8 °F
Glass Transition Temp, Tg	120 - 125 °C	248 - 257 °F

Processing Properties	Metric	English	Comments
Cure Time	10.0 - 20.0 min @Temperature 121 - 149 °C	0.167 - 0.333 hour @Temperature 250 - 300 °F	Option 2
	20.0 - 40.0 min @Temperature 79.4 - 93.3 °C	0.333 - 0.667 hour @Temperature 175 - 200 °F	Option 1
	120 - 240 min @Temperature 93.3 - 149 °C	2.00 - 4.00 hour @Temperature 200 - 300 °F	Optimum post cure
	240 - 360 min @Temperature 60.0 - 71.1 °C	4.00 - 6.00 hour @Temperature 140 - 160 °F	Option 3
Working Life	720 - 840 min @Temperature 23.9 °C	720 - 840 min @Temperature 75.0 °F	After mixing, 100 gram batch
Shelf Life	6.00 Month	6.00 Month

Descriptive Properties
Mixing ratio	100:10 by weight
Viscosity	thixotropic paste		Part A
	thixotropic paste		Mixed

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PMASTM615 / 249011

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