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Metal adhesives

Master Bond EP62-1BF Two component, lower viscosity epoxy system
Categories: Polymer; Thermoset; Epoxy; Epoxy Adhesive

Material Notes: Key Features:
  • Long open time at room temperature
  • Cures well at moderate temperatures
  • Can be used for potting small components
  • Superb physical strength profile
Master Bond EP62-1BF is a two component epoxy system that has a very long working life at room temperature and requires curing at moderately elevated temperatures. It has a very forgiving 100 to 5 mix ratio by weight. The mixed compound has a very low viscosity and good flow. The working life of 100 grams is 12-24 hours at room temperature. There are a number of cure schedule options; 6-8 hours at 140-158°F [60-70°C], 60-70 minutes at 176- 212°F [80-100°C] or 20-30 minutes at 257°F [125°C]. To obtain optimum properties, post curing at 212-302°F [100- 150°C] for 3-5 hours is recommended. Upon curing with the optimum schedule EP62-1BF displays robust temperature resistance with a glass transition temperature ranging from 125-135°C. It is highly resistant to many aggressive chemicals including acids, bases, solvents and other chemicals, even at elevated temperatures. EP62-1BF is a dependable electrically insulating material. The service temperature range is -60°F to +400°F The color of Part A is clear and Part B is dark brown in color. It is well suited for many rigorous applications inaerospace, electronic and specialty OEM, among other industries, especially where the ability to withstand hostile chemicals is required.

Product Advantages:

  • Forgiving 100 to 5 mix ratio by weight
  • Very long working life
  • Protects against many aggressive chemicals, even at elevated temperatures
  • Versatile curing schedules
  • Good flow properties
  • Low shrinkage upon curing

Information provided by Masterbond.

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.

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Physical PropertiesMetricEnglishComments
Viscosity 100 - 1000 cP100 - 1000 cPPart B
 2000 - 5000 cP2000 - 5000 cPmixed
 2500 - 5000 cP2500 - 5000 cPPart A
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D 80 - 9080 - 90
Tensile Strength 55.2 - 62.1 MPa8000 - 9000 psi
Elongation at Break 3.0 - 5.0 %3.0 - 5.0 %
Tensile Modulus 3.45 - 3.79 GPa500 - 550 ksi
Adhesive Bond Strength 13.8 - 15.2 MPa2000 - 2200 psilap shear, Al/Al
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity >= 1.00e+14 ohm-cm>= 1.00e+14 ohm-cm
Dielectric Constant 4.2
@Frequency 60 Hz
4.2
@Frequency 60 Hz
 
Thermal PropertiesMetricEnglishComments
Maximum Service Temperature, Air 204 °C400 °F
Minimum Service Temperature, Air -51.1 °C-60.0 °F
Glass Transition Temp, Tg 125 - 135 °C257 - 275 °F
 
Processing PropertiesMetricEnglishComments
Cure Time 180 - 300 min3.00 - 5.00 hourOptimum post cure, 212-302°F
 20.0 - 30.0 min
@Temperature 125 °C
0.333 - 0.500 hour
@Temperature 257 °F
 60.0 - 70.2 min
@Temperature 80.0 - 100 °C
1.00 - 1.17 hour
@Temperature 176 - 212 °F
 360 - 480 min
@Temperature 60.0 - 70.0 °C
6.00 - 8.00 hour
@Temperature 140 - 158 °F
Working Life 720 - 1440 min720 - 1440 minAfter mixing, 100 g batch
Shelf Life 12.0 Month12.0 MonthIn original unopened containers
 
Descriptive Properties
Mixing Ratio100:5Parts A to B, by weight

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PMASTM718 / 233775

Metal adhesives

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