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Chemically Resistant adhesives

Master Bond EP29LPSPAO Two Component, Thermally Conductive Epoxy Adhesive
Categories: Polymer; Thermoset; Epoxy; Epoxy Encapsulant, Unreinforced; Epoxy, Thermally Conductive

Material Notes: Master Bond Polymer System EP29LPSPAO is a two component, thermally conductive, electrically insulative, high performance epoxy system. It is specially formulated for cryogenic applications and requires a relatively low temperature heat cure. EP29LPSPAO is serviceable at temperatures as low as 4K as an adhesive, sealant, coating and encapsulant, but more importantly, it is able to withstand cryogenic shocks (i.e. room temperature down to liquid helium temperatures in a 5-10 minute time period).

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 PropertiesMetricEnglishComments
Viscosity 4000 - 15000 cP4000 - 15000 cPMixed
 2500 - 18000 cP2500 - 18000 cPPart B
 55000 - 70000 cP55000 - 70000 cPPart A
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D >= 75>= 75
Tensile Strength >= 35.9 MPa>= 5200 psi
Tensile Modulus >= 3.10 GPa>= 450 ksi
Shear Strength >= 6.89 MPa>= 1000 psiAl/Al
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity >= 1.00e+15 ohm-cm>= 1.00e+15 ohm-cm
Dielectric Constant 4.354.35
 
Thermal PropertiesMetricEnglishComments
CTE, linear 22.0 - 27.0 µm/m-°C12.2 - 15.0 µin/in-°F
Thermal Conductivity 1.30 - 1.44 W/m-K9.00 - 10.0 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 135 °C275 °F
Minimum Service Temperature, Air -269 °C-452 °F
 
Processing PropertiesMetricEnglishComments
Cure Time  180 - 300 min
@Temperature 93.3 °C
3.00 - 5.00 hour
@Temperature 200 °F
 300 - 420 min
@Temperature 79.4 °C
5.00 - 7.00 hour
@Temperature 175 °F
 480 - 600 min
@Temperature 54.4 - 65.6 °C
8.00 - 10.0 hour
@Temperature 130 - 150 °F
Pot Life 300 - 420 min300 - 420 min100 gram mass
Shelf Life  6.00 Month
@Temperature 23.9 °C
6.00 Month
@Temperature 75.0 °F
in original unopened containers
 6.00 Month
@Temperature 60.0 °C
6.00 Month
@Temperature 140 °F
in premixed an frozen format
 
Descriptive Properties
Mixing Ratio (A to B)100:65

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PMASTB242 / 132839

Chemically Resistant adhesives

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