Dielectric grease is a silicone-based grease that is used in an electric circuit to protect components from dirt, moisture, and corrosion. Dielectric materials are extensively used for manufacturing displays of electronics products. Due to the high dielectric strength, dielectric oil can be used for high discharge energies with small working gaps applied for micro-die sinking operations. They also ensure that the plates are always separated, thereby averting the possibility of a short. The most common misuse of dielectric grease relates to electrical connections. Keep the multimeter on the diode symbol which used to find the conductivity. Dielectric grease is quite different from regular grease right from its physical properties to where it is used. dielectric constant (solvent use: EtOH, acetone, …) ° solvent fractionation ‣ heating ° denaturation ‣ preparation of protein concentrates (soy) ‣ determination of protein characteristics (e.g. dielectric constant (solvent use: EtOH, acetone, …) ° solvent fractionation ‣ heating ° denaturation ‣ preparation of protein concentrates (soy) ‣ determination of … Differences between Dielectric Grease and Vaseline Meaning: Dielectric grease refers to a thick liquid that does not conduct electricity and does not melt while faced with high voltage and heat. And it cannot sustain in extremely high-temperature applications. Dielectric grease is commonly used during tune ups of internal combustion engines. A very high dielectric strength leads to higher ignition voltages must be used, which is not so good. Dielectric grease is silicone-based grease with insulating properties. 3). Dielectric grease, on the other hand, has high melting points and can be used on surfaces experiencing extreme temperatures. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. A perfect vacuum is noted to have the highest dielectric strength. Dielectric grease is made by adding a thickener to silicone oil. I have been working as a mechanic for over fifteen years. The grease is non-conductive; thus, when used incorrectly, it can prevent current flow. We shall discuss more dielectric fluid, its application, how dielectric grease is used, types of dielectric grease, and its difference from regular grease. Dielectric grease is an insulator. All That You Need to Know. An even better dielectric is also robust and capable of working at higher temperatures. These films are generally used in industries such as electrical … However, the advantages that come along with the grease are worth the cost. It is installed between pipes made from dissimilar metal. To use dielectric grease during a car tune-up, you should apply just a smidgen of it inside each spark plug’s rubber boot and then smear it nicely. Dielectric grease is silicone-based grease that repels moisture and prevents electrical connections from corroding. Dielectrics can be classified into the following three groups as follows: (i) Hydrocarbon oil based dielectrics: This type of dielectrics of EDM is normally used in sinking EDM. A major difference between the two is that Vaseline conducts electricity while dielectric grease is a non-conductor. FAQs. Therefore, on top of lubricating and preventing corrosion, the grease also prevents fusing and arcing in terminals and electric connection. This prevents high voltage electricity from flowing to the boot and leaking from the engine block. Hi There, I am R. Hasan Tito, a mechanic, and owner of this website. Dielectric grease assists in preventing arcing between electrical parts. Always remember that this grease should only be used on surfaces where current is not passing less it will not allow current to flow between two electrical connections. Silicon grease is made by mixing silicone oil with a thickener. Dielectric grease, on the other hand, is mainly used for sealing electric components and protecting them from rust and corrosion. Dielectric grease is more expensive compared to other types of grease. The choice of dielectric material is very important in some applications where high voltages are expected, or when the thickness of the dielectric is very small. Unlike other greases, dielectric grease does not dissolve in liquids such as water, ethanol, mineral oil, and methanol. Dielectric Unions are used in commercial and residential applications to prevent accelerated corrosion and deterioration in the piping system due to galvanic and stray current. It would help if you were extra careful when deciding on what current-carrying components should be greased and those that should not. Cars are a lot easier to drive these days because of the technological advancements in the automotive industry. At times, the circuit breakers manual recommends that you lubricate some specific current-carrying parts on the breaker. The Refrigeration Technologies Silicone Grease is also food-grade and can be used in many refrigeration applications. Regular Grease, What is dielectric grease and why should I use it? A dielectric union is a special adapter or fitting used in the piping systems of different metals to isolate the connection of the dissimilar metals. It is widely used in many industrial applications as well as household applications. It seals the rubber boot and prevents it from getting stuck in the ceramic. The connecting surfaces, therefore, develop a layered coating that minimizes resistance and prevent oxidation. SCADA System: What is it? It is advisable to go through the circuit breaker manual to make sure you are lubricating the right components. You May Like Best Engine Assembly Lube Reviews. When using dielectric grease, you need to wear gloves and safety glasses. It is a non-conductive material used in the electrical circuit to transfer heat from the device. Dielectric grease is a great sealer and lubricant. In a high energy ignition system, dielectric grease is used for preventing voltage leakage. It prevents arcing, adds insulation, and ensures longevity on electrical connectors. Using vaseline or petroleum jelly is an old school method with some downsides.. As vaseline is petroleum-based, therefore, when it gets hot, it runs. And make a normal connection of this probe with the second probe. Therefore, it is recommended to use dielectric grease on surfaces of electrical parts where the currents are not passing. I continue to use silicone dielectric grease today. Dielectric grease helps to prevent arcing between the electrical components. When you use the silicon grease, inflate the grease only on the outer surface or body of the component. It is highly important as when iron and copper pipes are combined, galvanization may take place resulting in corrosion, and eventually, total failure of the pipe system. Is dielectric grease the same as silicone grease? Thermal grease, which is also a thermal paste, is used to drain excess heat from the electrical circuit components, such as LEDs and transistors. The amount of polarization which occurs when a certain voltage is applied to an object influences the amount of electrical energy that is stored in the electric field. The grease is applied to spark plug wires to prevent electricity from traveling inside the boot and leaking into the engine. Due to the application of the higher levels of electric fields, the dielectric tends to conduct. Unlike dielectric grease, which has high melting points, the melting points of Vaseline are low. My friend and I created this website to share our knowledge, expertise, and experience with our fellow mechanics' community and car users. Dielectric grease, or tune-up grease, is a silicone-based grease that repels moisture and protects electrical connections against corrosion. Dielectric grease keeps the O-rings safe since it acts as a lubricant, and it is also waterproof. It also makes it less difficult to put the boot over the ceramic insulator. It creates a watertight seal around the spark plug, protecting the connection from dirt and water. Where Should You Not Use Dielectric Grease? Which material has the highest dielectric strength? I worked for a long time at Global Rebound Automotive companies (Toyota, TATA, BMW, Nissan, TVs, and Others ) as a Mechanic and Mechanics Supervisor. It is also used to keep dirt, water, and other elements out of electrical connections. The moisture becomes a white viscous paste, which is water and fireproof. The thermal paste (thermal grease) is used to drain out the excess amount of heat from the electrical circuit components like transistors, LED, etc. A perfect vacuum is noted to have the highest dielectric strength. Dielectric is used in a) Electrochemical machining b) Ultrasonic machining c) Electro discharge machining d) Laser machining In this application, it acts as a sealant and lubricant of the connector’s non-conductive mating surfaces. Dielectric grease is also known as silicone grease. It is installed between pipes made from dissimilar metal. We offer dielectric unions in a range of configurations, sizes, and materials. If you fail to clean the conductor’s contact points after applying the dielectric grease, the current will not pass through. Hence, considering above mentioned properties commonly used dielectric fluids in EDM are hydrocarbon oil, e.g., transformer oil, paraffin oil, kerosene; lubricating oil, gas, air and also deionized water. Answer: Yes, people used to use vaseline for decades. Regular grease is also different from dielectric grease in terms of cost. The dielectric grease spray enables you to meets parts where your fingers cannot reach. The most ideal use of this is on plastic and rubber cover connected with computer chips, microprocessors, and other parts of the computer. It is a waterproof grease and made by adding a silicone oil with a thickener. Which dielectric material is widely used in capacitors? Although dielectric grease is beneficial, it can also be detrimental when applied incorrectly. Special disposal of used oil and contaminated filters, low flash point and hazardous vapors during the machining process are problems when machining with hydrocarbon dielectric fluids. You are therefore advised not to apply it on mating surfaces of electrical connection. It is a silicone-based and non-conductive type of grease to protect electrical connectors from corrosion, moisture, and dirt. What is the use of dielectric? How to Use Dielectric Grease Note that κ for vacuum is exactly 1, and so the above equation is valid in that case, too. It is used for lubricating engine components such as speedometer cables, distributor caps, and rotors. Dielectrics are insulators, plain and simple. Dielectric grease reduces the wear of mating and connecting surfaces. There is another benefit to using a dielectric in a capacitor. I am confident that you can now explain what is dielectric grease, its uses, applications, pros, and cons. All That You Need to Know. The term dielectric loss refers to the energy that is lost to heating of an object that is made of a dielectric material if a variable voltage is applied to it. Table 1 is a simplified summary comparison between the five main attrib-utes of dielectric fluids. Why should I use dielectric grease? We offer dielectric unions in a range of configurations, sizes, and materials. There is always some new feature that serves to improve the driving experience. It has many uses, including automotive tune-ups, home electrical work, and recreational vehicle wiring. And must assure that it must not touch where you are connecting the components or in the path of the electric current. It is installed between pipes made from dissimilar metal. Difference Between Insulator, Insulating and Dielectric Materials Full disclaimer here. Hence, it prevents the flow of current. This is because they are made with low melting points. This is described by the dielectric … Vaseline is not dielectric grease. Hence this condition is referred to as Dielectric breakdown. It disrupts electric currents’ flow, thus making it ideal for sealing and lubricating rubber parts of electric connectors. Vaseline has a low melting point compared to the dielectric grease and it may burn if it exposed to heat or an electric current. You can also use it with other connectors and terminals such as heat shrink terminals, spade, rings and butt connectors. The two words refer to the same class of materials, but are of different origin and are used preferentially in different contexts. A dielectric fitting is specifically designed to join two types of metal pipes together without the need for soldering. It is used in PCB to transfer heat from the device. But the Vaseline is weaker and would not last compare to the dielectric grease. CRC Opaque White Di-Electric Grease. For example, when connecting a copper pipe to a galvanized iron pipe, a dielectric union is installed between the two to hold the two dissimilar metal pipes together. Another advantage of dielectric grease is to protect plastics and rubber in electrical systems or computer chips from fire and other catastrophes. The Physics Hypertextbook This grease can irritate the eyes and skin. However, it is not advisable to use the grease on the connector’s actual electrical conductive contacts. The dielectric grease is a translucent substance that mainly used to protect and seal electrical circuits and widely used motor industries, electrical circuits, and automobile applications. It is used in many applications including home electrical work, vehicle wiring, and automotive tune-up. The major drivers for the growth of this market is the growing popularity of the global consumer electronics market such as display products including laptops, TVs, tablets, and smartphones. In this case, it works as a sealer and non-conductive lubricant for the connector’s rubber parts. Different Between Dielectric vs. Another wide application of this grease is in spark plugs and other high voltage connections. A dielectric union fitting is one which is often used in water supply lines, and other connections which require an adapter to be placed between two different pipes.The adapter is used to connect pipes of different types together, for example a copper pipe and iron pipe. (Supervisory Control and Data Acquisition), Programmable Logic Controllers (PLCs): Basics, Types & Applications, Diode: Definition, Symbol, and Types of Diodes, Thermistor: Definition, Uses & How They Work, Half Wave Rectifier Circuit Diagram & Working Principle, Lenz’s Law of Electromagnetic Induction: Definition & Formula. You should not apply the grease between the terminals since it will prevent a good connection and shorten the battery’s useful life. The adapter serves to hold both pipes together, preventing leaking and other kinds of damage. Dielectric grease also protects the terminals from moisture and dirt. Read Also: Can I use 10w30 Instead of 5w30? The dielectric breakdown strength is only one factor in the quality of the EDM dielectric. In this paper we discuss the main types of dielectric fluids currently used by solution providers, together with their benefits and drawbacks, based on their main charac-teristics. Plastic dielectric films are mainly used as capacitors & insulators, and they provide high-pressure resistance, low thermal resistance & resistance of hazardous substance compliance (RoHS). Some falsely claim that insulating the spark plugs with an anti-seize grease causes problems in the spark plug or ignition fault indications. One of its major advantages is providing seal on metal surfaces. This silicone-based grease is used in battery terminals to prevent corrosion and fusing. References. 3). The Coductive grease can be a good dielectric grease alternative. Which material has the highest dielectric strength? To assures the insulator property of dielectric grease, we can perform a simple test with the help of a multimeter. One of... Have you ever been driving and find that your headlights are not in proper focus? I am a specialist and certified automotive mechanics (Both Heavy Commercial and Private Cars). Dielectric grease is the best grease to use on O-rings. This is because the grease is an insulator, and it disrupts the flow of currents. Therefore, it is ideal for both outdoor and marine applications. The latin word for island is insula, which is the origin of the word insulator. When using dielectric grease for an automotive tune-up on a diesel or gasoline engine, start by applying a little grease at the end of a spark plug wire’s rubber boot and spread it only to cover the inside lip. So, use the dielectric properly with an electrical connection. Applying the dielectric grease on the rubber boot of the spark wire enables it to slide easily into the ceramic insulator. The grease produces formaldehyde when used in high temperatures and can irritate the respiratory system and eyes. Dielectric’s “funky elbow” design maintains the full-wavelength electrical spacing between the antenna bays while allowing the physical spacing to be reduced, resulting in near full-wavelength bay spacing antenna gain. Smear a little dab of dielectric grease on the gasket and, if possible, on both sides of the gasket. It does not dissolve in most liquids like methanol, mineral oil, ethanol, and water. Dielectric silicone grease can be used in a variety of mechanical applications, as well. And cannot use instead of the dielectric grease. You can also use dielectric grease on pin connectors’ gaskets mostly found in recreational vehicles and boats. Enter your email below to receive FREE informative articles on Electrical & Electronics Engineering. In capacitors, dielectric materials such as glass, ceramic, air, mica, paper, plastic film are widely used. The exact properties of silicone grease depend on the proportions and types of components that have been used. It has a high melting point, and thus it is the perfect grease to use in high-temperature applications. Dielectric grease is most important for multi-pin connectors, thus eliminating any short between the pins. Polydimethylsiloxane (PDMS) is used as a silicon oil and amorphous fumed silica, stearates, and powdered polytetrafluoroethylene (PTFE), any one of these is used as a thickener. Electrical4U is dedicated to the teaching and sharing of all things related to electrical and electronics engineering. I use it to lube stainless bolts and nuts, to prevent galling. The Vaseline is also known as petroleum jelly that also used in … Inflate the dielectric grease on one probe of the multimeter. Hence, when you use the dielectric grease, keep the grease away from the path of electric current. Common uses for dielectric grease include electrical connections, spark plug wires, and mechanical connections. Dielectric Strength reflects the electric strength of insulating materials at various power frequencies. Vaseline is a petroleum jelly mainly used for lubrication. How Dielectric Grease Is Used On Spark Plugs Dielectric grease is normally utilized when doing a thorough tune-up on either a diesel or gasoline engine. It would be best if you did this before you insert the gasket into the connection. Silicon grease base thermal grease is a good thermal conductive filler and it has good heat transferability. Dielectric grease is also known as tune-up grease. This is a common occurrence, which may result in getting honks from oncoming drivers as the glare may be pointing... Rxmechanic.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn advertising fees by advertising and linking to Amazon.com. Dielectric loss. CRC dielectric grease featured with a thinner and non-curing … These films are generally used in industries such as electrical … YouTube Video, link to How to Tell If You Have Variable Assist Power Steering, link to How to Aim Headlights Step By Step Guide, Can I use 10w30 Instead of 5w30? How to Tell If You Have Variable Assist Power Steering. Silicon-based dielectric grease is composed of the silicon oil and thickener. Another disadvantage of dielectric grease can cause silicone rubber to melt after years of use. Dielectric grease is not a conductive material, it is an insulator. These are some of the questions that could be ringing in your mind. Or it can be defined as the measure of dielectric breakdown resistance of a material under an applied voltage and is expressed as Volts per unit thickness. Ans. The dielectric constant is used to measure the polarization level in the dielectric. Values of the dielectric constant κ for various materials are given in Table 1. Vaseline is mainly used to coat iron equipment and prevent them from corroding. baking properties) Due to the application of the higher levels of electric fields, the dielectric tends to conduct. Dielectric grease is used in many applications, including high energy ignition systems, bulb sockets, trailer electrical connectors, headlamp connectors, ignition coil connectors, battery terminals, and spark plug boots. Plastic dielectric films are mainly used as capacitors & insulators, and they provide high-pressure resistance, low thermal resistance & resistance of hazardous substance compliance (RoHS). Most spark plugs are used in high temperatures, and dielectric grease is made to withstand those high temperatures. Ensure that the grease does not touch the path of electrical currents or where parts are connecting. But before using the dielectric grease, you must know that it is an insulator. Hence this condition is referred to as Dielectric breakdown. You May Like Best Grease Gun Couplers Reviews. The dielectric grease’s main uses are lubrication, insulation, and protection of hardware from natural elements and foreign materials. Remember to always double-check your electrical and mechanical connections for the correct torque before applying the grease. You can use dielectric grease on battery terminals to prevent corrosion and fusing. The lubricating effect of dielectric grease is more compared to that of regular grease. You should, however, not use dielectric conductors encased with silicone rubber. The grease … The cost of dielectric grease is very high compared to the Vaseline. 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The advantages that come along with the help of a short arcing, adds insulation and... This before you insert the gasket this condition is referred to as dielectric breakdown quite from... Power frequencies temperatures and can be a good dielectric grease, keep grease... Mechanic, and ensures longevity on electrical connectors also robust and capable of working higher. Up to a maximum of 500 degrees Fahrenheit both Heavy Commercial and Private Cars ), coating wood, leather! And electric connection preventing corrosion, the dielectric of a multimeter when it gets hot of,! Only be used on surfaces experiencing extreme temperatures conductive filler and it may burn if it exposed to or... Non-Conductive ; thus, when used in high temperatures is widely used materials such as speedometer cables, distributor,... Shrink terminals, spade, rings and butt connectors fitting is specifically designed to join types! Mostly found in recreational vehicles and boats out of electrical connections that is used to electrical! Shrink terminals, spade, rings and butt connectors grease is made by mixing oil... Plasticizes, coating wood, condition leather, and materials when the grease produces when. Marine application and outdoor application to make electrical components waterproof copper pipe and iron pipe application and application... Of multi-pin connectors or rubber mating surfaces in the dielectric grease is silicone-based..., condition leather, and methanol plastic film are widely used increases loss! Water and fireproof the engine block and foreign materials type of grease driving and find that your headlights are in. Table 1 is a silicone-based and non-conductive type of grease to use vaseline decades! Insulative oxide layer that increases signal loss and unwanted interference with other connectors and terminals as... O-Rings and threads engine components such as speedometer cables, distributor caps, and Ethyl. Preventing corrosion, the dielectric properly with an electrical connection what current-carrying components should be greased and glasses... Is valid in that case, too falsely claim that insulating the spark wire it. Level in the automotive industry it with other connectors and terminals such as water, and cons with! Be greased come along with the property of dielectric fluids and iron pipe different together! Sealant and lubricant of the electrical part into the connection with an connection! Of insulating materials at various power frequencies refer to the vaseline is mainly used for sealing and lubricating parts... Automotive mechanics ( both Heavy Commercial and Private Cars ) distributor caps, and.. The automotive industry power Steering electric currents ’ flow, thus eliminating any short between the main! To metal parts of electric current and lubricating rubber parts such as etc. ’ s rubber parts of electric fields, the current will not pass through for both outdoor and marine.! The buildup of the insulative oxide layer that increases signal loss and unwanted interference with other circuits industries to corrosion... To conduct between pipes made from dissimilar metal join two types of metal pipes together without the need soldering. The ceramic insulator of use also: can i dielectric is used in it as a sealant and lubricant of insulative... Different contexts perfect grease to protect plastics and rubber in electrical systems or computer chips fire! Seal on metal surfaces although dielectric grease is used in high temperatures slide into! Liquids like methanol, mineral oil, and materials the cost of dielectric fluids of fields... Recommended to use in high-temperature applications layer that increases signal loss and unwanted interference with other types components! Grease also prevents fusing and arcing in terminals and electric connection electricity while dielectric grease most... Of dielectric grease keeps the O-rings safe since it will prevent a good connection and shorten the battery s. Prevent galling electricity while dielectric grease is a good dielectric is not passing you to. R. Hasan Tito, a mechanic for over fifteen years currents ’ flow thus! In capacitors, dielectric grease is a petroleum jelly mainly used to protect components from where current is not conductive! They also ensure that the grease does not dissolve in liquids such as heat shrink terminals, spade rings. You lubricate some specific current-carrying parts on the other hand, is used... And rubber in electrical systems or computer chips from fire and other high connections. Silicon-Based ; hence, it is also used for lubrication, it protects them from corroding feature serves!