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Metal adhesives

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Master Bond EP42HT-2ND-2 Two component epoxy
Categories: Polymer; Thermoset; Epoxy

Material Notes: Key Features:
  • Convenient mix ratio
  • Long working life
  • Good chemical resistance
  • Paste consistency
Product Description: Master Bond EP42HT-2ND-2 is a room temperature curable two component epoxy, adhesive, sealant, and coating. It has an easy to use 100 to 40 mix ratio by weight or 100 to 50 by volume. It withstands high temperatures along with excellent chemical resistance. It is notable for its high glass transition temperature. The system cures readily at ambient temperatures or more quickly at elevated temperatures. The optimum cure is 8-12 hours at 75°F followed by 2-4 hours at 175-250°F. EP42HT-2ND-2 has good dimensional stability and low shrinkage upon curing. This compound bonds well to a wide variety of substrates including metals, glass, ceramics, plastics, and many rubbers. The cured epoxy has outstanding chemical resistance to various acids, bases, solvents and hydrocarbons. EP42HT-2ND-2 is also a superb electrical and thermal insulator. The service temperature range is from -60°F to 450°F. The color of both Part A and Part B is amber. EP42HT-2ND-2 is an exceptionally versatile system with potential applicability in aerospace, electronic, and specialty OEM, among other high tech industries.

Product Advantages:

  • Non-critical 100:40 mix ratio by weight or 100:50 by volume
  • Outstanding physical strength properties
  • Excellent chemical resistance to acids, alkalis and many solvents
  • Superior thermal stability; serviceable up to 450°F
  • Good gap filler

Information provided by Master Bond.

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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Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 80 - 90
Tensile Strength 10000 - 11000 psi
Tensile Modulus 400000 - 450000 psi
Adhesive Bond Strength 1600 - 1800 psiTensile lap shear, Al to Al
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+14 ohm-cm
Dielectric Constant 4.4
@Frequency 60 Hz
 
Thermal PropertiesOriginal ValueComments
CTE, linear 35.0 - 40.0 µm/m-°C
Maximum Service Temperature, Air 450 °F
Minimum Service Temperature, Air -60.0 °F
Glass Transition Temp, Tg 150 - 155 °C
 
Processing PropertiesOriginal ValueComments
Cure Time 2.00 - 3.00 hour
@Temperature 93.3 °C
 8.00 - 12.0 hour
@Temperature 23.9 °C
Optimum cure, plus 2-4 hours at 175-250°F
 48.0 - 72.0 hour
@Temperature 23.9 °C
Working Life 45.0 - 60.0 minafter mixing, 100 gram batch
Shelf Life 6.00 - 12.0 Monthin original, unopened containers
 
Descriptive Properties
Mixing ratio100:40 by weightPart A to B
 100:50 by volumePart A to B
ViscositypastePart A
 pastePart B

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PMASTM5928 / 306817

Metal adhesives

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