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Metal adhesives

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Master Bond Supreme 46HT-2ND2 Two Component, Non-Drip, Toughened, Epoxy Adhesive
Categories: Polymer; Adhesive; Thermoset; Epoxy; Epoxy Adhesive; Epoxy, High Temperature

Material Notes: Key Features:
  • Outstanding thermal cycling properties
  • Superior temperature resistance
  • Impressive electrical insulator
  • Superb toughness
  • High strength properties
  • Very long working life
Product Description: Master Bond Supreme 46HT-2ND2 is a two component epoxy system featuring an appealing array of high performance properties including superior temperature resistance, very good shear and peel strengths and stellar thermal cycling properties. It is especially useful as a structural bonding agent. It has a highly useful temperature range of -100°F to +500°F. Supreme 46HT-2ND2 requires elevated temperature curing at a minimum of 250°F. Most notably, it has a paste consistency and is specially formulated to have minimal flow while being cured. The mix ratio is a forgiving 100 to 30 by weight and is relatively forgiving. Supreme 46HT-2ND2 bonds well to similar and dissimilar substrates including metals, ceramics, glass, composites and many plastics. It withstands exposure to a variety of chemicals including water, many acids, bases, solvents, fuels and oils. It is a first rate electrical insulator. As mentioned previously, it is well designed for bonding dissimilar substrates and withstands mechanical shocks and resists rigorous thermal cycling. The color of Part A is black and the color of Part B is brown. Supreme 46HT-2ND2 would be most commonly used in aerospace, electronic, specialty OEM applications where excellent adhesion, marvelous temperature resistance and prominent thermal cycling capabilities along with a non-drip viscosity are required.

Product Advantages:

  • Non-critical 100 to 30 mix ratio by weight
  • Easily applied; smooth paste consistency
  • Very long pot life at room temperature
  • Exceptional thermal shock and cycling capabilities
  • Sound electrical insulation properties
  • First class bonding strength to similar and dissimilar substrates with very good peel strength

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.

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Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 80 - 90
Tensile Strength >= 10000 psi
Tensile Modulus 350000 - 400000 psi
Adhesive Bond Strength 2800 - 3000 psiTensile Lap, Aluminum to Aluminum
Peel Strength >= 10.0 pli
 
Electrical PropertiesOriginal ValueComments
Dielectric Constant 4.5
@Frequency 60 Hz
 
Thermal PropertiesOriginal ValueComments
CTE, linear 50.0 - 55.0 µm/m-°C
Maximum Service Temperature, Air 500 °F
Minimum Service Temperature, Air -100 °F
 
Processing PropertiesOriginal ValueComments
Cure Time 3.00 - 4.00 hour
@Temperature 121 - 149 °C
followed by a post cure at 350-400°F for 1-2 hours
 3.00 - 4.00 hour
@Temperature 121 - 149 °C
Working Life >= 720 minAfter mixing, 100 gram batch
Shelf Life 12.0 Month
@Temperature <=23.9 °C
in original, unopened containers
 
Descriptive Properties
Mixing Ratio100:30 by weightPart A to B
ViscositypastePart A
 pastePart B
 pasteMixed

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PMASTM966 / 185559

Metal adhesives

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