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Master Bond adhesives

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Lord Adhesives Thermoset™ 781 Epoxy Adhesive System
Categories: Polymer; Thermoset; Epoxy; Epoxy Adhesive

Material Notes: LORD Thermoset 781 epoxy adhesive is a two-component, thixotropic adhesive system designed to temporarily bond silicon ingots to a holding fixture for the purpose of wafer slicing. The ingot should be pre-coated with a primer prior to adhesive application to allow for easy release of the sliced wafers from the fixture.

Features: provides excellent adhesion to a wide variety of surfaces. remains in position when applied on vertical or overhead surfaces, allowing for greater process flexibility. develops high bond strength in 12-16 hours at room temperature.

All information provided by Lord.

Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesOriginal ValueComments
Specific Gravity 1.38 g/cc781 Hardener
 1.65 g/ccMixed
 1.70 g/cc781 Resin
Water Absorption 0.20 %
@Time 86400 sec
cured; ASTM D 570
Viscosity 65000 cP781 Hardener
 2.30e+6 cP781 Resin
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 82cured; ASTM D 2240
Tensile Strength 6000 psicured; ASTM D 638
Elongation at Break 2.0 %cured; ASTM D 638
 
Processing PropertiesOriginal ValueComments
Cure Time 16.0 hour
@Temperature 25.0 °C
plus 2 hours at 100C
Pot Life 12.0 - 16.0 min
@Temperature 25.0 °C
Time to Handling Strength, mixed
Working Life 50.0 - 60.0 min
@Temperature 25.0 °C
Mixed
Shelf Life 12.0 Month
@Temperature 25.0 °C
each component, from date of manufacture when stored in original, unopened container
 
Descriptive Properties
AppearanceGrey Paste781 Resin
 Yellow Paste781 Hardener
 Yellow PasteMixed
ViscosityMixed: thixotropic paste

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PLORD9223 / 232579

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