eFunda Polymers: Properties of Epoxy {glass fiber reinforced, sheet molding compound (SMC)}
engineering fundamentals Polymer Material Properties
Directory | Career | News | Industrial
Generic (ABS, ...)
Trade Name
Materials Home
General Information
Polymer Home
Glossary
Material Science
Overview
Characteristics
Comparisons
Selection Criteria
Applications
Flow Characteristics
Datasheet Primer
Major Categories
Polymer Index
History Timeline
List by Process
Thermoplastic/Thermoset
Specific Polymer
Category / Grades
Datasheet
Supplier Info
Resources
Bibliography
Login

Home Membership Magazines Forum Search Member Calculators

Materials

Design

Processes

Units

Formulas

Math
 
Epoxy
 
List of Suppliers
Additives: glass fiber reinforced
Application: sheet molding compound (SMC)
Material Properties
 Mechanical Properties Conditions
State 1 State 2 ASTM
Elastic Modulus (MPa)  13800 - 27600  tensile   D638
Flexural Modulus (MPa)  13800 - 20700   23 ºC   D790
 10350 - 17250   93 ºC   D790
  8280 - 12420  149 ºC   D790
Tensile Strength (MPa)  138 - 242 at break   D638
Compressive Strength (MPa)
at yield or break
 138 - 207     D695
Flexural Strength (MPa)
at yield or break
 345 - 483     D790
Elongation at break (%)   1 - 2     D638
Hardness   55 - 65  Shore B   D638
Izod Impact (J/cm of notch)
1/8" thick specimen unless noted
  15.9 - 21.2     D256A

 Thermal Properties Conditions
Pressure State ASTM
Coef of Thermal Expansion (10-6/ºC)   12     D696
Deflection Temperature (ºC)  288   1.82 MPa   D648
Thermal Conductivity (W/m-ºC)  0.071 - 0.079     C177

 Physical & Electrical Properties Conditions
State ASTM
Specific Gravity  1.4   D792
Water Absorption (% weight increase)  0.1  after 24 hrs D570

 Processing Properties Conditions
Type ASTM
Melting Temperature (ºC)  thermoset  Tm, crystalline  
Processing Temperature (ºC)  132 - 166  compression molding  
 132 - 166  transfer molding  
Molding Pressure (MPa)   3 - 14    
Compression Ratio  2    
Linear Mold Shrinkage (cm/cm)  0.001   D955

Suppliers
Quantum Composites, Inc. Midland, MI  800-462-9318
Home  Membership  About Us  Privacy  Disclaimer  Contact  Advertise

Copyright © 2019 eFunda, Inc.