Over time and with exposure to harsh environmental elements, many alloy fasteners will oxidize and many polymer fasteners will degrade. Both will wear. These same harsh application environments often make easy fastener replacement not an option.
Ceramics (unlike many metals and alloys) do not oxidize. The reason is simple. Ceramics are already oxides! As such, they are almost unaffected by the process leading to oxidation. While polymer fasteners may not rust in the traditional sense of the word, many are subject to their own unique form of corrosion known as: "polymer degradation."
Surface breakdown also can eventually lead to fastener failure. Wear can result from corrosion as well as cavitation damage (another form of wear), resulting from impingement attack (turbulence or impinging flow). As metals and plastics wear their surfaces break down, which can lead to pitting. Ceramco’s solid alumina fasteners are fully dense, impervious, high wearing and non-corroding.
Ceramics possess exceptional resistance to strong acids and other chemicals. Ceramics are virtually unaffected by UV radiation and other environmental agents that degrade some polymers. The porosity of both Ceramco's alumina A998 and zirconia TZP fasteners is rated as: "impervious."
Solid ceramic fasteners (like all fasteners) have limits to their strength ratings. These characteristics are called: Mechanical Properties. When not over-torqued, or subjected to impacts, Ceramco’s solid ceramic fasteners deliver consistent, reliable and long-lasting performance in corrosive and high wear environments.
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