EC
Ethyl cellulose
Edge Feed
A method of feeding rubber into the mold cavity. In this case, the point of injection is at the edge of the part
Ejector Housing
A "U" shaped frame which is an integral part of the tool containing the ejector retainer plate and ejector plate
Ejector Pin
(knockout Pin) A pin or plate that is driven into a mold cavity from the rear as the mold opens to force out the finished part
Ejector Plate
The part of the mold which backs up the retainer plate and keeps the knockout pins from falling out
Ejector Retainer Plate
The part of the mold which locates and retains the knockout pins
Ejector Rod
A bar that actuates the ejector assembly when the mold opens
Elastic Limit
Maximum stress that a material will stand before permanent deformation occurs
Elasticity
A rubber's ability to return to its original size and shape after removal of the stress causing deformation such as stretching, compression, or torsion. It is the opposite of plasticity. The term elasticity is often loosely employed to signify the "stretchiness" of rubber
Elastomer
Any of various polymers having the elastic properties of rubber
Elongation
Generally referred to in terms of tensile (pull apart) testing, elongation is the increase in length of a test specimen, expressed as a percentage of its original (unstretched) length... relative to a given load at the breakpoint
EMA
Ethylene-methyl acrylate
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