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Rulon Bearings

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Master Bond EP51FL Toughened and Flexible Adhesive Compound
Categories: Polymer; Adhesive; Thermoset; Epoxy; Epoxy Adhesive

Material Notes: Master Bond EP51FL is a two component epoxy system for high performance bonding sealing and coating. It combines superior toughness with user friendly handling properties, along with unusually fast curing times. Normally, toughened epoxies are slower curing but EP51FL has a dazzling rate of polymerization. EP51FL, will set up in 20-30 minutes and will fully cure in 12-24 hours at room temperature. It has an easy to use one to one mix ratio by weight or volume. It bonds well to a wide variety of substrates including metals, composites, glass, ceramics and many rubbers and plastics. It has excellent electrical insulation properties and offers solid resistance to chemicals such as water, oils and fuels. It withstands rigorous thermal cycling along with mechanical shock and impact. It is cryogenically serviceable.

Product Advantages:

  • Convenient mixing: non-critical one to one mix ratio by weight or volume
  • Easy application; moderate viscosity liquid spreads evenly and smoothly
  • Fast ambient temperature cures. Can be accelerated by heat
  • Excellent adhesion to a wide variety of substrates
  • Good electrical insulation properties
  • Serviceable at cryogenic temperatures down to 4K
Key Features:
  • Good toughness and flexibility
  • Easy handling
  • Very rapid curing
  • Cryogenically serviceable

Information provided by MasterBond®

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 3000 - 10000 cPPart A
 50000 - 90000 cPPart B
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 75 - 80
Tensile Strength at Break 5000 psi
Shear Strength >= 1400 psiTensile lap, Al to Al
Peel Strength >= 15.0 pliT-peel
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+15 ohm-cm
Dielectric Constant 3.3
@Frequency 60 Hz,
Temperature 25.0 °C
 
Thermal PropertiesOriginal ValueComments
Maximum Service Temperature, Air 250 °F
Minimum Service Temperature, Air -270 °F
 
Processing PropertiesOriginal ValueComments
Cure Time 1.00 hour
@Temperature 65.6 - 93.3 °C
 12.0 - 24.0 hour
@Temperature 23.9 °C
Pot Life 5.0 - 10 min100 gram batch
Shelf Life 12.0 Monthin original, unopened containers
 
Descriptive Properties
Mixing Ratio (A to B)1:1by weight

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PMASTB409 / 149656

Master Bond adhesives

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