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Rulon Bearings

BCC Products BC 7020 Epoxy Backfill System
Categories: Polymer; Thermoset; Epoxy

Material Notes: BC 7020 is a lightweight two component epoxy backfill system. Unlike BC 7010, the filler portion is pre-blended into the resin and hardener components for easier handling, thus simplifying the mixing process. BC 7020 is ideally suited for foundry applications involving mold and core construction. Features: low cost, simple mix ratio (1 to 1 by wt.), long pot life, machineable low shrinkage, and color change to insure complete mix.

Information provided by BCC Products, Inc.

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Physical PropertiesMetricEnglishComments
Specific Gravity 0.780 g/cc0.780 g/cc
Linear Mold Shrinkage 0.00020 cm/cm0.00020 in/inASTM D2566-69
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D 65
@Temperature 23.9 °C
65
@Temperature 75.0 °F
Compressive Strength 25.4 MPa3680 psi
 
Thermal PropertiesMetricEnglishComments
Deflection Temperature at 1.8 MPa (264 psi) 53.3 °C128 °F
 
Processing PropertiesMetricEnglishComments
Cure Time 1440 min
@Temperature 24.0 °C
24.0 hour
@Temperature 75.2 °F
Pot Life 120 - 180 min
@Temperature 24.0 °C
120 - 180 min
@Temperature 75.2 °F
 
Descriptive Properties
Mix Ratio1:1 by weight
Mixed Viscosity, BrookfieldThixotropic

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