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Metal adhesives

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Master Bond EP51FL-1ND-2 Two component, fast curing epoxy
Categories: Polymer; Thermoset; Epoxy

Material Notes: Key Features:
  • Convenient handling
  • Resists thermal cycling and shock
  • Reliable electrical insulator
  • Paste consistency
Product Description: Master Bond EP51FL-1ND-2 is a two component, highly flexible epoxy resin system for high performance bonding, sealing and coating featuring a very rapid set up time and cure. Most flexibilized epoxy formulations are slower curing, but EP51FL-1ND-2 cures much more quickly. It typically has a set up time of 30-40 minutes and full cure within 24 hours at room temperature. Another alternative cure schedule is 2-3 hours at room temperature followed by an hour at 150-200°F. It has a one to three mix ratio by weight or by volume. Some of the outstanding properties of this system are exceptionally high peel strength and elongation. Its excellent flexibility allows it to be used in applications involving thermal cycling, harsh thermal and mechanical shocks and other situations where superior toughness is desirable. EP51FL-1ND-2 bonds well to many different substrates including metals, plastics and many types of rubber. In fact, it may adhere well to untreated rubber materials such as neoprene, nitrile, SBR and occasionally EPDM rubber compounds; materials that normally require time consuming surface preparation. It has very good chemical resistance to oils, fuels and water. EP51FL-1ND-2 is a first class electrical insulator. Its service temperature range is -100°F to +250°F with superior low temperature serviceability. EP51FL-1ND-2 is widely used in the aerospace, electronic, electrical, repair and maintenance and specialty OEM industries where good flexibility and fast cure are desirable property traits.

Product Advantages:

  • Non-critical 1:3 mix ratio by weight or volume
  • Paste consistency
  • Fast curing
  • High peel strength and elongation
  • Resists thermal cycling and mechanical shock
  • Superior adhesion to a wide variety of substrates

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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Physical PropertiesOriginal ValueComments
Viscosity 10000 - 14000 cPPart A
 130000 - 160000 cPPart B
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore A 50 - 60
Hardness, Shore D 10 - 20
Tensile Strength >= 1000 psi
Elongation at Break >= 200 %
Adhesive Bond Strength >= 600 psiTensile lap shear, Al to Al
Peel Strength >= 30.0 pli
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+15 ohm-cm
 
Thermal PropertiesOriginal ValueComments
Maximum Service Temperature, Air 250 °F
Minimum Service Temperature, Air -100 °F
 
Processing PropertiesOriginal ValueComments
Cure Time 1.00 - 2.00 hour
@Temperature 23.9 °C
Alternative cure schedule, plus 1 hour at 150°F
 24.0 hour
@Temperature 23.9 °C
Working Life 15.0 - 20.0 minafter mixing, 100 gram batch
Shelf Life 12.0 Monthin original, unopened containers
 
Descriptive Properties
Mixing ratio1:3Part A to B

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PMASTM5929 / 306818

Metal adhesives

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