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Metal adhesives

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Master Bond EP41S-5ND Black Two component epoxy system
Categories: Polymer; Thermoset; Epoxy; Epoxy Adhesive

Material Notes: Key Features:
  • Convenient handling
  • Paste consistency
  • Withstands methylene chloride and other aggressive chemicals
  • Superior electrical insulation properties
Master Bond EP41S-5ND Black is a two part epoxy system for bonding, sealing and coating with a forgiving 100 to 25 mix ratio by weight. EP41S-5ND Black will cure at room temperature or more rapidly at elevated temperatures. The optimum curing schedule is overnight at 75°F followed by 3-4 hours at 150-200°F. It has exemplary resistance to a wide array of chemicals, especially acids, bases, alcohols, fuels and solvents. Most noteworthy is its resistance to methylene chloride, phenol (10%), nitric acid (30%) as well as ethanol and acetone. Upon mixing, EP41S-5ND Black is a paste consistency with minimal flow properties. It contains no solvents or diluents and is 100% reactive. It has low shrinkage upon curing. This epoxy combines formidable physical strength properties and electrical insulation values. It bonds well to a wide variety of substrates including metals, composites, glass, ceramics, as well as many rubbers and plastics. EP41S-5ND Black is serviceable over a wide temperature range of -80°F to +450°F. The color of Part A is black, and Part B is amber. This epoxy system can be used in aerospace, electronic, chemical processing, specialty OEM and in other applications where robust chemical resistance is required.

Product Advantages:

  • User friendly handling and convenient curing
  • Good adhesion to many types of substrates
  • Well suited for coating tanks and vessels
  • Exceptional chemical resistance, especially to solvents
  • Noteworthy high temperature resistance

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 85 - 95
Tensile Strength 10000 - 12000 psi
Adhesive Bond Strength 900 - 1100 psiTensile Lap Shear; Al/Al
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+14 ohm-cm
Dielectric Constant 3.8
@Frequency 60 Hz
Dielectric Strength 440 V/mil
@Thickness 3.17 mm
 
Thermal PropertiesOriginal ValueComments
CTE, linear 35.0 - 40.0 µm/m-°C
Maximum Service Temperature, Air 232 °C
Minimum Service Temperature, Air -62.0 °C
Glass Transition Temp, Tg 140 - 145 °C
 
Processing PropertiesOriginal ValueComments
Cure Time 2.00 - 3.00 hour
@Temperature 65.6 - 93.3 °C
Option 2
 3.00 - 4.00 hour
@Temperature 65.6 - 93.3 °C
Optimum cure schedule: overnight at 75°F, plus 3-4 hours at 150-200°F
 72.0 - 120 hour
@Temperature 23.9 °C
Option 1
Working Life 25.0 - 35.0 min
@Temperature 23.9 °C
After mixing, 100 gram batch
Shelf Life 12.0 Month
 
Descriptive Properties
Mixing ratio100:25 by weight
ViscositypastePart A
 pastePart B

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PMASTM612 / 249008

Metal adhesives

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