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Metal adhesives

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Master Bond EP30D-7 Two Component Urethane-modified Epoxy System
Categories: Polymer; Adhesive; Thermoset; Epoxy; Epoxy Adhesive

Material Notes: Key Features:
  • Superior toughness
  • Ambient temperature curing
  • Superb resistance to thermal cycling
  • For bonding, sealing, coating and encapsulation
  • Urethane-modified epoxy
  • Exceptional abrasion resistance
Product Description: Master Bond EP30D-7 is a versatile two component flexibilized, urethane-modified epoxy featuring superior strength, toughness and abrasion resistance for high performance bonding, sealing, coating and potting applications. It combines the advantageous performance characteristics of epoxy resins such as strength, chemical resistance and adhesive qualities, with those of polyurethanes including toughness, abrasion resistance and flexibility. EP30D-7 is formulated to cure at room temperature or more rapidly at elevated temperatures, with a forgiving 100 to 20 mix ratio by weight. It is 100% reactive and does not contain any solvents or diluents. The EP30D-7 system cures with minimal linear shrinkage to form durable, high strength, toughened bonds. It has superior resistance to thermal cycling as well as thermal and mechanical shocks. EP30D-7 has good resistance to chemicals such as water, fuels and oils. It is serviceable over the wide temperature range of -100°F to +250°F. Its adhesion to metals, glass, ceramics, composites, a variety of plastics and many rubbers is excellent. The cured elastomer is an electrical insulator. The color of Part A is black and Part B amber-clear. EP30D-7 is widely used in the aerospace, electronic, electrical, electro-optic and specialty OEM industries.

Product Advantages:

  • Easy processing: compound flows easily and smoothly, minimal shrinkage upon curing
  • Versatile cure schedules: ambient temperature or faster elevated temperature cures as required
  • Good bond strength to a wide variety of substrates
  • Superb resistance to thermal cycling and shocks
  • Excellent electrical insulation properties
  • Outstanding abrasion 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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Physical PropertiesOriginal ValueComments
Viscosity 300 - 600 cPPart B
 40000 - 55000 cPPart A
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore A 90 - 95
Tensile Strength >= 4500 psi
Adhesive Bond Strength >= 1500 psiTensile lap, Aluminum to Aluminum
 
Electrical PropertiesOriginal ValueComments
Dielectric Constant 3.8
Dielectric Strength >= 400 V/mil
@Thickness 3.17 mm
 
Thermal PropertiesOriginal ValueComments
Maximum Service Temperature, Air 250 °F
Minimum Service Temperature, Air -100 °F
 
Processing PropertiesOriginal ValueComments
Cure Time 2.00 - 3.00 hour
@Temperature 93.3 °C
 48.0 - 72.0 hour
@Temperature 23.9 °C
Working Life 20.0 - 30.0 minAfter mixing, 100 g batch
Shelf Life 12.0 Month
@Temperature <=23.9 °C
in original, unopened containers
 
Descriptive Properties
Mixing Ratio100:20 by weightParts A to B

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PMASTM857 / 185450

Metal adhesives

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