GREASE FOR ELECTRICAL CONTACTS

BECHEM’s range of electric greases are formulated with special low viscosity synthetic oil and organic polymer thickeners. These life lubricants protect contacting surfaces by ensuring high strength lubricating film that are compatible with engineering plastics and also possess excellent noise dampening properties.

Ability to regulate the flow of current while remaining inert to the surge, good anti-corrosion and anti-wear properties and high surface tension to avoid migration are some of the desired properties of good electrical contact greases. More importantly, it should be noiseless and provide a smooth operating experience to the user. The need is for a special lubricant that can withstand the flow of current and harsh operating conditions inside a switch with minimum presence for a very long time.

Applications where electrical contact greases are being used currently in the industry include ignition and micro switches, plug connectors, printed circuit boards, combination switch, mirror adjustment switches, wiper motors, starter and window regulator motors

For more details, send in your query at sales@bechemindia.com or call us at
+91 80 66900800/01/02.

Grease for Electrical Contacts

The fully synthetic, low viscous grease possesses good conductivity with low internal resistance . Berulub KR EL 2 has excellent low temperature behaviour. This special water repellent grease for electrical contacting surfaces prevents formation of foreign layers and protects surfaces from corrosion wear.

Applications: Berulub KR EL 2 is recommended for power and steering mounted switches and control systems, electrical contacts in ignition locks of automotive vehicles etc.

ProductThickenerBase OilTemp Range °CSend Your Queries
Berulub KR EL 2

  • Automotive industry
  • Electical Contact
  • Low temperature
  • Corrosion protection
Lithium SoapDiester-50 to +120

Range of synthetic lubricants developed for electric contacting surfaces of varying currents that experience friction and temperature rise. Berulub FK Series are water resistant and protect contacting surface from friction and wear. The special range provides life lubrication for contacting surfaces as well as protection against dust impurities. With wide operating temperature range Berulub FK series can meet climatic challenges of extreme low/high temperatures and prevents spark formation on electric contact surfaces. Compatible with special metals, coated metals as well as polymeric materials such as PC, PMMA, ABS etc.

Applications: Recommended for electrical systems in vehicles and energy systems that experience resistive loads, inductive loads, switches and small gears. Also, suitable for all kinds of carbon-film potentiometers, relay switches, motor or generator commutators, variable condensers, high frequency sliding contacts. Possesses noise dampening ability. Please consult a BECHEM Application Engineer for selection of the suitable grade of ‘Berulit FK’ series for your application.

ProductThickenerBase OilTemp Range °CSend Your Queries
Berulub FK 33

  • Electical
    Contact
  • Automotive industry
  • High temperature
  • Low temperature
  • Compatible with plastic
GelPerfluoropolyether-40 to +180
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Berulub FK 35b

  • Electical
    Contact
  • Low temperature
  • Compatible with plastic
BentonitePolyglycol-40 to +150
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Berulub FK 80

  • Electical
    Contact
  • Automotive industry
  • Low temperature
  • Compatible with plastic
  • Resistant to water
PolyureaEster-40 to +150
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Berulub FK 97 e

  • Electical
    Contact
  • Automotive industry
  • Low temperature
  • Compatible with plastic
  • Resistant to water
PolyureaEster-40 to +150
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Berulub FK 60

  • Electical
    Contact
  • Automotive industry
  • Low temperature
  • Compatible with plastic
  • Resistant to water
  • Corrosion protection
  • Noise damping
PolyureaPolyalphaolefin-50 to +160
ProductThickenerBase OilTemp Range °CSend Your Queries
Berulub FK 64

  • Electical
    Contact
  • Automotive industry
  • Low temperature
  • Compatible with plastic
  • Resistant to water
GelEster-50 to +120
ProductThickenerBase OilTemp Range °CSend Your Queries
Berulub FK 122

  • Electical
    Contact
  • Automotive industry
  • Low temperature
  • Compatible with plastic
  • Resistant to water
PolyureaEster-50 to +150
ProductThickenerBase OilTemp Range °CSend Your Queries
Berulub FK 125

  • Electical
    Contact
  • Automotive industry
  • Low temperature
  • Compatible with plastic
  • Resistant to water
  • UV tracer
Special LithiumPolyalphaolefin-50 to +120
ProductThickenerBase OilTemp Range °CSend Your Queries
Berulub FK 164-2

  • High temperature
  • Low temperature
  • Compatible with plastic
  • Noise damping
  • Automotive industry
PTFEPerfluoropolyether-60 to +250

Applications and Properties

The unique pictograms help identify primary characteristics of the lubricant as well as key applications and industries it has been established at a glance. However the final recommendation would still have to be by the BECHEM specialist after having studied application and its operating environment. As the saying goes, ‘every problem has a unique solution, if only, one is looking for it’. This is the core philosophy to our approach towards ‘Application Engineering’ and staying true to ‘speciality’

Electical Contact

Automotive industry

High temperature

Low temperature

Compatible
with plastic

Resistant to water

Noise damping

Corrosion protection

UV tracer

Frequently Asked Questions

Short bytes for queries on lubricants that always bothered you

The measure of consistency is called penetration. Penetration depends on whether the consistency has been altered by working. Standard test procedures established by American Society for Testing and Materials International (ASTM) and accepted by industry are ASTM D 217 and D 1403, measure penetration of unworked and worked greases.

The NLGI has established consistency numbers ranging from 000 to 6, corresponding to specified ranges of penetration distance of the standard cone into the test grease. Table below lists the NLGI grease classifications along with a description of the consistency of each classification.

Dropping point of a lubricating grease is an indicator of the heat resistance of the grease. and is the temperature at which the grease is no more a thickened lubricating medium. The dropping point indicates the upper temperature limit at which a grease retains its structure, not the maximum temperature at which a grease may be used.

Few greases have the ability to regain their original structure after cooling down from the dropping point.

Viscosity: It is a measure of resistance to flow of a lubricating oil.

Viscosity index: It is defined as rate of change of viscosity with respect to temperature.

Significance:

  • It is the most important property which determines the performance of lubricating oils under the influence of temperature
  • A lubricating oil should have sufficient viscosity to retain a lubricating film on the surface
  • On machine part moving at slow speeds under high pressures, a high viscous oil should be used as it better resists being squeezed out from between the rubbing parts.  Light oils can be used for lower pressures and high speeds.
  • It is not possible to maintain a liquid oil film between two moving or sliding surfaces if the viscosity is too low and hence excessive wear will occur.

The most important feature of a grease is its consistency. A grease that is too stiff may not get pumped into areas requiring lubrication. While a grease that is too fluid may leak out. Grease consistency depends on the type and amount of thickener used and the viscosity of its base oil. A grease consistency is its resistance to deformation by an applied force.

Greases are made by mixing a solid material, called a thickener, with a base oil and property enhancing additives; but it’s the oil that forms the lubrication film. For better understanding, grease thickener can be thought of as a sponge saturated with oil. Moving parts squeeze the oil out of the sponge like thickener for forming the lubrication film. Typically, the base oil constitutes the largest proportion of grease weight at about 80-90%, followed by thickener at 10 to 20% and additives under 10%.

The pour point of an oil is the minimum temperature at which the oil turns into semi solid and almost losses its flow characteristic. At low temperatures, the viscosity of the oil will be very high, causing the oil to resist flow. This is important in equipment that operates in a cold environment or handles cold fluids.

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