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TUNGSTEN DISULFIDE (WS2) | COATING SERVICE

Dicronite® is a tungsten disulfide (WS2), dry film lubricant coating. This extremely thin film coating provides friction and sliding wear reduction in various applications across numerous industries.

Dicronite® is suitable for demanding environments such as extreme temperatures, vacuum, precision tolerances, and many more.

Coat components with Dicronite® to prevent failure, increase efficiency and improve performance. 

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COMMON APPLICATIONS

For 60+ years, Dicronite has been trusted to effectively lubricate:

  • Actuators
  • Ball Screws
  • Bearings
  • Bushings
  • Chains
  • Cylinders
  • Couplings
  • Discs
  • Electrical Connectors
  • Fasteners
  • Gears
  • Guides
  • Nuts
  • Plastic Molding Cavities
  • Pins
  • Plates
  • Rails
  • Rings
  • Rivets
  • Rods
  • Shafts
  • Slides
  • Splines
  • Sprockets
  • Threads
  • Valves
  • Washers
  • + More!

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Technical Information

APPLICATION PROCESS

Dicronite® is applied at one of many licensed coating facilities. After surface preparation, Dicronite® dry lubricant is impinged onto the substrate surface at high velocity (similar to sandblasting).

The coating process is conducted at ambient conditions. The material includes no binders or adhesives and requires no curing. Dicronite® can be re-applied to the same component repeatedly.

SUBSTRATES

All metals, most plastics, and some ceramics; may be applied on other coatings/platings

APPEARANCE

Silver, blue gray, dark gray

THICKNESS

0.5 micron (0.00002 inch) or less

PERFORMANCE OVERVIEW

FRICTION REDUCTION

Systems with Dicronite® coated on smooth surfaces often range between 0.03 and
0.07 dynamic coefficient of friction, and 0.05 to 0.09 static coefficient of friction

WEAR REDUCTION

Suitable for sliding wear reduction; not intended for reducing abrasive wear

LOAD CAPACITY

Same as substrate, up to approximately 350,000 psi (2,415 MPa)

THERMAL STABILITY

Functions across high and low temperatures; withstands temperature changes
   • up to approximately 538°C (1000°F) in air
   • up to approximately 1316°C (2400°F) in vacuum
   • down to cryogenic temperatures

VACUUM STABILITY

Very low outgassing; suitable spacecraft material per ASTM E595 guidelines
• TML < 1.0 %, CVCM < 0.1 %

COATING PROPERTIES

CHEMICAL STABILITY

Inert

TOXICITY

Non-toxic

MAGNETISM

Non-magnetic; won’t impact substrate magnetism

CONDUCTIVITY

Will not significantly affect substrate conductivity (thermal or electrical)

CORROSION RESISTANCE

Provides only minimal corrosion inhibition

COMPATIBILITY

LUBRICANTS

Compatible with oils and greases

LIQUIDS

Compatible with fuels, hydraulic fluids, and many solvents

OXYGEN

Suitable for liquid and gaseous oxygen systems

RADIATION

Radiation stable; tested according to LEO and nuclear containment vessel radiation levels

BIOCOMPATIBILITY

Biocompatible per USP Class VI and select ISO-10993 testing

Companies that Trust the Dicronite® Coating Process:

parker
nasa
raytheon
lockheadmartin
tyco-clear
univac
unilever
general-mills
ferrari
halliburton
space-x-logo
bosch
triumph
collins-aerospace
bae-systems
ampheno
honeywell
department-of-defense
Ford_blue
stryker
jabil
BD_life_science
skf
arconic
airbus
eaton
northrop-grumman
gernal-dynamics
3m
PKB-Logo-Transparent
GE
medtronic
porsche
formula-1
boeing

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Join countless engineers who choose Dicronite® to improve component perfromance. Speak with an expert today. 

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© Lubrication Sciences International, Inc., 2023. Dicronite® and DL-5® are registered trademarks of Lubrication Sciences International, Inc.

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Sliding Wear

Sliding wear occurs when two surfaces slide against one another causing material loss to one or both surfaces. Over time, this can result in component failures, additional maintenance, and costly down time.  

Coating components with Dicronite® can help minimize this wear and reduce the need for maintenance and down time.

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Tight Tolerance Lubrication

Extremely tight tolerances can present challenges when lubricants or coatings are needed to reduce friction. Many products are available to help reduce friction, but in the case of very tight tolerances, few can be integrated without the need for adjustments.

Dicronite® has an average thickness of 0.5 microns (0.00002 inch) or less. This precision thin film allows users to incorporate Dicronite® on designs with tight tolerances without the need for design or manufacturing changes.

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Vacuum Environment Lubrication

Vacuum environments present a challenge for lubrication. Many conventional lubricants aren’t effective under vacuum and are largely vaporized.

Dicronite® can be used in vacuum to reduce friction where other lubricants can’t function. The outgassing of Dicronite® under vacuum conditions is well below screening levels for spacecraft materials per ASTM E595.

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Energy Lost to Friction

Friction is wasted energy! Systems with critical mechanical power output need to be extremely efficient.

Dicronite® optimizes mechanical efficiency by reducing friction losses and can even work in tandem with existing lubrication to further optimize efficiency.

Dicronite® is especially useful in precision systems, extreme environments, or where minimizing size and weight is vital.

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Fretting

Fretting is a unique form of sliding wear that occurs when contact surfaces oscillate over a very small range of motion. Although it may seem minor, this surface wear can ultimately lead to fatigue cracking and devastating damage.

Dicronite® helps remedy fretting by providing lubrication at contact surfaces. This effectively reduces the wear and surface stresses that cause so much damage.

Dicronite® can be integrated into existing designs and assemblies without any other adjustments for seamless reduction of fretting wear.

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Extreme Temperature Lubrication

Extreme low or high temperatures can be challenging environments for lubrication. At low temperatures, conventional lubricants may be too viscous to be effective, while extreme high temperatures can result in breakdown of the lubricant.

Dicronite can be used in extreme environments to ensure effective lubrication while also being used in combination with oils and greases.

Dicronite is stable across a wide temperature range:

  • up to approximately 538°C (1000°F) in air
  • up to approximately 1316°C (2400°F) in vacuum
  • down to approximately -188°C (-305°F)

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Excessive Heat from Friction

As friction in an assembly generates heat, elevated temperatures can result in unwanted operating conditions.

This can cause overheating and accelerate the breakdown of materials, resulting in costly maintenance and down time or destructive failure.

Proper lubrication can help minimize friction, reduce heat, and increase mechanical efficiency. Coat parts with Dicronite® to avoid excessive maintenance and ensure components will run as efficiently as possible.

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