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Master Bond adhesives

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Master Bond EP38 Low Viscosity, Fast Curing, Two Component Epoxy
Categories: Polymer; Adhesive; Thermoset; Epoxy; Epoxy Adhesive
Material Notes: Master Bond Polymer System EP38 is a fast curing, low viscosity, optically clear two component epoxy system for high performance coating, bonding and sealing. EP38 has a unique balance of favorable physical strengths, optical clarity, electrical insulation characteristics and unexcelled resistance to boiling water exposures as well as to many other aggressive chemicals.
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
Water Absorption <= 0.70 %
@Time 173000 sec		immersion
Viscosity 3000 - 4000 cP
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D >= 80
Tensile Strength >= 6500 psi
Elongation at Break 6.0 - 8.0 %
Shear Strength >= 2400 psiLap, Al/Al
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+14 ohm-cm
 
Thermal PropertiesOriginal ValueComments
Maximum Service Temperature, Air 275 °F
Minimum Service Temperature, Air -65.0 °F
Flash Point 250 °F
 
Optical PropertiesOriginal ValueComments
Transmission, Visible >= 96 %3100-9000Â
 
Processing PropertiesOriginal ValueComments
Tack-Free Time 3.00 hour
@Temperature 23.9 °C
 9.00 hour
@Temperature 4.44 °C
Pot Life 20 - 30 min
Shelf Life 12.0 Monthin unopened containers
 
Descriptive Properties
Chemical ResistanceAmmonium hydroxide, 10%No effect up to 4 week immersion; strongly attacked or destroyed after 10 weeks
 BenzeneNo effect up to 2 week immersion, then softened 4+ weeks immersion
 Crude oilNo effect up to 12 week immersion
 Diacetone alcoholNo effect up to 5 week immersion, then softened 6+ weeks up immersion
 Ethanol, 50%No effect up to 12 week immersion
 Ethanol, 96%No effect up to 12 week immersion
 Gasoline 98 octaneNo effect up to 12 week immersion
 Hydrochloric acid, 10%No effect up to 12 week immersion
 Hydrochloric acid, 20%No effect up to 12 week immersion
 OctanolNo effect up to 12 week immersion
 SeawaterNo effect up to 12 week immersion
 SkydrolNo effect up to 12 week immersion
 Sodium hydroxide, 20% Butyl acetateNo effect up to 12 week immersion
 Sulfuric acid, 10%No effect up to 12 week immersion
 Sulfuric acid, 30%No effect up to 12 week immersion
 Sulfuric acid, 70%No effect up to 12 week immersion
 TolueneNo effect up to 12 week immersion
 Water, distilledNo effect up to 12 week immersion
 XyleneNo effect up to 12 week immersion
Mixing Ratio (A to B)3/1
Resistance to Boiling Water ImmersionsNo Effect2 days, Cured at 75°F
 No Effect1 week, Cured at 75°F
 No Effect8 weeks, Cured at 75°F
 No Effect10 weeks, Cured at 75°F
 No Effect12 weeks, Cured at 75°F

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PMASTB251 / 132848

Rulon Bearings




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