Rubber
Man-made elastomers such as Nitrile, Fluorocarbon, Silicone, etc.
,Synthetic
Man-made elastomers such as Nitrile, Fluorocarbon, Silicone, etc.
SAN
Styrene-acrylonitrile
SBR
Styrene-butadiene (rubber)
Scorching
Premature curing of compounded rubber stock during processing or storage, with the potential for adversely affecting material flow and plasticity during subsequent shaping and curing processes
Seal-Off
A feature on an insert which is used to control which surfaces of the part will be covered by rubber during the molding process. A seal-off usually takes the form of a flat surface which seats against a corresponding mold surface to restrict the flow of rubber
Seal
Any device used to prevent the passage of a fluid (gas or liquid) or fine particles
Sealing System
The components and attributes which compose the sealing environment, including the seal, the components being sealed, the medium or media being sealed, and the environmental conditions such as temperature, pressure, and motion
Selective Laser Sintering (SLS)
A laser traces the shape of the part to be modeled in a thin layer of powder. The laser sinters (softens and bonds) the powder particles together. This process is repeated over layers of powder
Separation Blister
A molding defect. It, unlike a normal blister, is one that appears to be vein like and takes on different shapes and sizes. It is generally believed to be caused from wet stock or stock containing too much moisture
Shaft
A load-bearing and/or power-transmitting member o fa mechanical system which is generally cylindrical in shape and frequently rotates or reciprocates
Shore A
A hardness scale used to measure the hardness of molded rubber. The Shore A scale is most effectively used to measure rubber with a hardness from 10 to 95 Shore A. For materials harder than 90 to 95 Shore A, the Shore D scale is recommended (see also durometer)
Shore M
A durometer hardness instrument using a microindicator, designed for the purpose of measuring o-ring hardness
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