Glossary of Terms

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Matrix coating:
One in which some ingredients, such as the lubricant (PTFE), which is soft, are enveloped in others (the matrix, such as harder, more wear-resistant binders). Also referred to as "resin bonded coating."

Melt point:
The temperature at which a polymer particle will begin to melt and flow.

Micro-inch:
µinch, a millionth of an inch.

Micron:
µ, one micron, one millionth of a meter. Also expressed as µm or micro-meter.

Micron:
As commonly used in the coating industry, is equivalent to 1/25th of a mil, i.e. 25 microns are equivalent to one mil of coating thickness, or one mil of coating thickness is equivalent to 25 microns.

Migration (of lubricant):
Characteristic of any lubricant which is under pressure to move away from bearing area.

Mil:
One thousandth (0.001) of an inch (25.4 microns). Most common non-metric measurement of coating thickness.

Mill:
A device that breaks up the melt-mix extrusion into powder particles of a determined average particle size.

Moly, moly disulfide, molybdenum disulfide, MoS_:
Four names for the same naturally occurring substance that has good low friction and high load-bearing properties.