Lord Adhesives Thermoset™ EP-20 Epoxy Resion with Thermoset Hardener No. 66 System

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Lord Adhesives Thermoset™ EP-20 Epoxy Resion with Thermoset Hardener No. 66 System
Categories:	Polymer; Thermoset; Epoxy; Epoxy Adhesive
Material Notes:	LORD Thermoset EP-20/66 epoxy system is a two-component, general purpose system for use in many applications including adhesive, laminating and electrical/electronic insulation. Handling and cured properties of the two-component epoxy system are dependent on the hardener used with Thermoset EP-20 epoxy resin. Features: provides high bond strength for use as an adhesive to a variety of surfaces. Rigidity of bond may be varied depending on mix ratio. A 1:2 (resin to hardener, by weight) ratio will yield a relatively flexible bond; a 2:1 ratio will provide a rigid bond. provides a working life of over one hour; cures at room temperature or with mild elevated temperature. All information provided by Lord.
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Physical Properties	Original Value	Comments

Specific Gravity	1.00 g/cc	Hardener
	1.17 g/cc	EP-20 Component
Water Absorption	0.35 % @Temperature 25.0 °C, Time 86400 sec	cured
Viscosity	10000 cP @Temperature 25.0 °C	Hardener; Spindle 5, 20 rpm
	13000 cP @Temperature 25.0 °C	EP-20 Component

Mechanical Properties	Original Value	Comments
Hardness, Shore D	85	cured; ASTM D 2240
Tensile Strength	7500 psi @Temperature 25.0 °C	cured
Elongation at Break	12 %	cured

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+16 ohm-cm @Temperature 25.0 °C	cured
Dielectric Constant	3.7 @Frequency 1e+6 Hz, Temperature 25.0 °C	cured
Dissipation Factor	0.016 @Frequency 1e+6 Hz, Temperature 25.0 °C	cured

Processing Properties	Original Value	Comments
Cure Time	24.0 hour @Temperature 25.0 °C	mixed with EP-20 Epoxy Resin
Working Life	60.0 min @Temperature 25.0 °C	Working life, with EP-20 Epoxy Resin
Shelf Life	24.0 Month @Temperature 25.0 °C	Hardener. From date of manufacture in original, unopened container
	24.0 Month @Temperature 15.0 - 35.0 °C	EP-20 Component. From date of manufacture in original, unopened container

Descriptive Properties
Appearance	Amber Liquid	Hardener 67
	Black Liquid	EP-20
Mix Ratio	100 to 50	by weight, EP-20 Epoxy Resin to Hardener
	100 to 60	by volume, EP-20 Epoxy Resin to Hardener

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