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Micro Surface Corp.

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Solid-Film Lubricants

Dry Solid Film Lubricants

Solid-film lubricants (SFL) are thin films of resins which bind lubricating powders such as MoS2 (molybdenum disulfide), graphite or fluorocarbon to a surface. These lubricants prevent surface-to-surface contact, reducing friction and wear between mating surfaces. The lubricant actually becomes a protective layer between the two surfaces. SFL coatings are effective in applications where conventional wet lubricants provide insufficient protection from high temperatures, extreme loads, wear or corrosion. Users benefit from the versatility of these coatings that are effective in:

Each lubricant powder has different properties. An example is MoS2, which in combination with graphite results in superior lubrication. MoS2 alone offers better corrosion resistance. Graphite alone, although rarely used in this state, results in better electric conductivity and functions better under radiation. Most of these films are only 0.0002" to 0.0005".

Solid Film Lubricant offers advantages over:

Greases and Oils

Zinc Plating

Types are those for low coefficient of friction at low loads, slow speeds; corrosion protection and solvent resistance; anti-stick and release agents; water-based versions for use where high-temperature baked-on materials cannot be used; graphite or chloride-free formulas that cure by air drying or baking; compounds for temperature ranges from 0F to +859F or -350F to +400F; and adhesion and abrasion. Overall range, depending on product varieties, is from -400F to 1400F. Coefficient of friction range is 0.02 to 0.06.

Tips on solid-film lubricants:

These lubricants can be applied by spraying, dipping, tumble spraying or being brushed onto a prepared surface. Some require thermal curing and others are ready to use after air drying. They are used primarily between two mating surfaces such as camshafts, bearings, marine parts, guns, weapons, pistons, valves, connectors, fasteners and slides. Among the fields in which they find use are aerospace, automotive, computer manufacturing, EMI/RFI shielding, petrochemical, fasteners, valves and pumps. A dedicated line of these lubricants and coatings for the valve industry is offered in a broad temperature range.

This technical information has been contributed by
Micro Surface Corp.

Click on Company Name for a Detailed Profile

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