Ethylene Methyl Acrylate (EMA)
EMA is a thermoplastic, further classified as an ethylene copolymer. It has a fairly high ductility among thermoplastics. In addition, it has a very low tensile strength and a fairly low density. The graph bars on the material properties cards below compare EMA to: ethylene copolymers (top), all thermoplastics (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Thermal Properties
Melting Onset (Solidus)
78 °C 170 °F
Vicat Softening Temperature
51 °C 120 °F
Other Material Properties
Density
0.94 g/cm3 59 lb/ft3
Elongation at Break
800 %
Tensile Strength: Ultimate (UTS)
8.0 MPa 1.2 x 103 psi
Common Calculations
Strength to Weight: Axial
2.4 points
Strength to Weight: Bending
9.5 points
Followup Questions
Further Reading
SPI Plastics Engineering Handbook of the Society of the Plastics Industry, Inc., 5th ed., Michael L. Berins (editor), 2000
Modern Plastics Handbook, Charles A. Harper (editor), 1999
Plastics Materials, 7th ed., J. A. Brydson, 1999