Ceramic grease it has a very wide temperature range as well as resistance to corrosion. It is used either to lubricate threaded connections that operate at high temperatures. For example, spark plug and glow plug seats, caliper bolts, and so on. Either when installing the brake pads, lubricating its reverse side or putting it under the caliper piston boot. Ceramic grease ensures trouble-free dismantling of the threaded connection even after prolonged operation at high temperatures. In addition, its composition provides reliable protection of working surfaces from corrosion and mechanical damage..
- What are the requirements for lubrication
- What is boron nitride and its uses
- Where Ceramic Grease Is Used
- Rating of the best high-temperature greases
However, there are a number of misconceptions on the Internet related to the misuse of ceramic grease. This is especially true for inexperienced motorists. One of these is the recommendation to lubricate the outside of the brake pads and calipers. In fact, for this there are special ceramic lubricants for calipers and guides, which, however, are similar in their properties to the indicated compositions. Currently, on store shelves, you can find various ceramic pastes for candles and calipers, which differ in performance (composition and operating temperature range), as well as in price. At the end of this material, there is a list of the most common ceramic greases..
|Liqui Moly Keramik-Paste||The temperature range is from -30 ° С to + 1400 ° С. Resistant to water and chemical compounds. Can be used not only in automotive, but also in industrial technology.||50 ml; 250 ml; 400 ml||480 rubles; 2000 rubles; 1900 rbl|
|Kroon Oil Ceramic Grease||Considered premium assembly paste and high temperature ceramic grease. The highest operating temperature is + 1500 ° C. Prevents normal and electrolytic corrosion, resistant to water and weak solutions of acids and alkalis.||200 ml; 400 ml; 600 mg; 18 Kg||RUB 350; 1050 rubles; 1000 rubles; 15000 rbl.|
|Presto Keramik-Spray||Heat-resistant grease based on ceramic paste. It has a working temperature range from -40 ° С to + 1200 ° С. Excellent for use in braking systems including ABS and ASR. However, this lubricant should not be sprayed onto rubbing surfaces.!||400||570|
|FEBI||There are two separate pastes here – one for the brake pads and one for the spark / glow plugs. Both have wide temperature ranges, protect well the work surfaces on which they are applied, are inexpensive, therefore they are recommended for use.||100 ml; 50 mg.||950 rubles; 700 rbl.|
|Permatex Ceramic Extreme Brake Parts Lubricant||It is positioned by the manufacturer as a ceramic grease for extremely exploited brake units. Has a very wide operating temperature range – from -46 ° C to 1649 ° C. The grease can be used on various parts of the car brake system.||4 grams; 148 ml.||360 rubles; 1500 rbl.|
|Bardahl Pate de Montage Haute Temperature||A multipurpose heat-resistant grease that can be used in both automotive and industrial equipment. The highest temperature range is + 1000 ° С. Lubrication prevents seizure and blocking of moving joints of individual parts, protects them from oxidation and exposure to non-aggressive chemical compounds.||400||800|
|CRC Metal Free Paste||Ceramic heat-resistant grease without metal particles in its composition. Temperature range – from -40 ° С to + 1400 ° С. A LPG propellant is used in the canister instead of chlorinated solvent. This grease must not be used on operating equipment, or in oxygen systems and systems where acetylene is present.!||300||800|
Requirements for ceramic lubricants
First of all, it is necessary to turn to the question of why, in fact, such lubricants are called ceramic? As the name implies, in their composition, among other components, there are microscopic elements of ceramics, which are distinguished by their high-temperature and wear-resistant properties. Many people know that ceramic materials are used to make various heat-resistant dishes, crucibles (quartz, porcelain, various oxides), and so on. The same logic is followed in the production of lubricants. In addition, ceramic particles do not rust and are strong enough to withstand significant mechanical stress..
However, when choosing one or another lubricant, a number of additional requirements must be taken into account. In particular:
- wide temperature range, in particular high upper limit;
- when operating at high temperatures, the grease should not exhibit the so-called dropping effect, in which it loses its operational properties;
- be waterproof, do not wash off and do not absorb moisture;
- to be chemically stable, not to change its composition and properties under the influence of various acids, alkalis and various chemical compounds;
- the lubricant must be neutral with respect to rubber and plastic.
Also, when choosing one or another lubricant, you must pay attention to its state of aggregation in the package. So, on sale there are aerosol cans and a tube with a dispenser and a brush. Cylinders are better for spraying grease over a large area, and a tube for spot lubrication.
Boron nitride in brief
Some high-temperature ceramic greases use a chemical compound called boron nitride. This substance can exist in several allotropic states. It can be compared with carbon, which in vacuum has very high lubricating properties, and its crystal lattice does not act as an abrasive. As for the crystal lattice of diamond, it is the most durable connection on Earth. Boron nitride is similar. Under certain conditions (and in chemical compounds), this compound has even better lubricating properties than molybdenum disulfide.
This is what the original boron nitride looks like
In its original form, boron nitride is a white powder and in a dry state it is a classic abrasive, albeit a fine one. However, when mixed with an oily (liquid) composition, it, on the contrary, turns into a lubricant. Its positive feature is that boron nitride microparticles (usually commercially available with an indication of the particle diameter of 0.07 microns) fill the voids on the surface of parts left from mechanical impact on the part.
The advantage of using ceramics in the form of boron nitride or other compositions is that it effectively protects the metal part from corrosion, does not stick to the metal surface, and also does not wash out during its entire service life..
Using ceramic grease
There are several common misconceptions associated with the use of ceramic heat-resistant grease in various parts of a car. That is, what can be lubricated with it, and for what it is better to use other means.
As mentioned above, there are special lubricants for lubricating brake calipers and guides, which are called so. Some of them do contain ceramic components, but they are used to protect their surfaces from corrosion and excessive wear due to high temperatures generated during braking. Conventional ceramic greases are best used for lubricating threaded connections operating at high temperatures. A classic example is the lubrication of spark plug and glow plug threads. Another example is lubricating the brake caliper bolts (but not the calipers themselves).
Also on the Internet you can find the opinion that you need to lubricate brake pads and / or discs with ceramic greases to prolong their service life. In fact it is! The use of high-temperature ceramic grease can indeed reduce the wear of these elements by protecting them from high temperatures, but it will certainly reduce the braking efficiency, which is unsafe under any conditions, especially in wet weather or, for example, if the car is loaded. therefore no need to lubricate the inner part of the brake pads and brake discs with any grease!
In racing cars, the caliper is not lubricated at all, since not only the effectiveness of braking is important there, but also its sharpness, as well as the speed of reaction to pressing the brake pedal.
The only element in the brake system (other than the caliper bolts mentioned) that can be lubricated with high temperature ceramic grease is the outer surface of the pad and / or caliper. This can be done for anti-creak purposes.
Please note that the dosage must be taken into account when lubricating threaded connections. That is, it is impossible to over-lubricate the thread, because otherwise, when tightening it, it will crawl out, which is not always good, since the extrusion can be carried out in different directions. For example, when the plug is screwed onto its seat, the grease can be squeezed up or down, and in the latter case, it can reduce the efficiency of the plug, clogging its electrode or getting into the combustion chamber. In addition, if the lubricant is of poor quality or has a narrow operating temperature range, then it can stick to it. There are cases when in such situations it is extremely difficult to unscrew it to the point of complete impossibility. And this already threatens with expensive repairs. Therefore, grease should be applied to the candle thread only to the level of its chamfer..
Rating of popular ceramic lubricants
There are several popular high temperature ceramic pastes on the market today that can be used in automotive applications. Our team has compiled a rating of such products, which are recommended for purchase by both ordinary motorists and craftsmen who are engaged in car repairs on an ongoing basis. The rating is not of a commercial nature and does not advertise these funds. Its goal is to provide the most complete information for motorists so that they can choose the lubricant that is most suitable for their purposes..
Liqui Moly Keramik-Paste
Liqui Moly Keramik-Paste is a synthetic white high-temperature paste. It is one of the most popular and effective non-stick agents commonly used in automotive engineering to lubricate spark plug threads, caliper bolts and other components. Differs in a wide operating temperature range – from -30 ° С to + 1400 ° С. In addition, Liquid Moli has excellent anti-wear and anti-corrosion properties, perfectly prevents the occurrence of sticking, sticking, rusting of the working surfaces of individual parts, and also ensures their uniform and smooth sliding. The paste is resistant to cold and hot water, it is practically not washed off. Also resistant to various acids and alkalis.
It is, in fact, a universal tool, therefore it can be used not only in automotive, but also in other equipment. As indicated by the manufacturer, it can be used to lubricate highly loaded sliding surfaces of various parts that operate at low sliding speeds or vibrate. In particular, it can be laid in threads, splines, pins, lubricated bolts, spindles and non-metallic surfaces of parts operating at high temperatures and / or a high corrosive environment..
Real tests have shown the extreme effectiveness of Liqui Moly Keramik-Paste. Car enthusiasts, in addition to the brake system and spark / glow plugs, also use it in the exhaust system to protect against the negative effects of corrosion (especially in the autumn-winter period). In addition, the popularity of this tool is due to its widespread use, as well as the absence of fakes. Perhaps the only drawback of grease is its rather high price..
It is sold in packages of different sizes. In particular 50 ml, 250 ml, 400 ml (spray pack). Their articles are, respectively, 3418, 3420 and 3419. Prices as of the summer of 2020 are about 480 rubles, 2000 rubles and 1900 rubles, respectively.
Kroon Oil Ceramic Grease
Ceramic grease Kroon Oil Ceramic Grease is positioned by the manufacturer as a premium assembly paste and grease. Differs in a very high limiting operating temperature – + 1500 ° C. In addition, it can withstand high pressures without being squeezed out of its seats. It also has high performance properties, in particular, resistance to water and various aggressive chemical compounds, in particular, from electrolytic corrosion (for example, when a steel bolt was screwed into the aluminum base). Kroon Oil Ceramic Grease perfectly reduces the level of friction between the working surfaces of contacting working pairs. The lubricant contains no metal particles that serve as an abrasive.
The manufacturer claims that it is most effective to use this paste in the brake system of a car, when installing spark plugs and glow plugs, when assembling ABS and ASR systems, oxygen sensors, exhaust system parts, when connecting individual parts that are made of different materials. In particular, Kroon Oil Ceramic Grease can be used not only in automotive but also in industrial equipment. For example, when connecting flanges or for lubricating high pressure parts. The test results showed very high performance properties of the grease. Therefore, it can be unambiguously recommended for use in individual units and systems of the vehicle..
It is sold in four types of packages – a 200 ml aerosol can, a 400 ml aerosol can, a 600 mg can, and an 18 liter bucket. Their articles are respectively 33080, 33745, 34073 and 33952. The price for the above period is 350 rubles, 1050 rubles, 1000 rubles and 15000 rubles.
Presto Keramik-Spray is marketed as a ceramic, heat-resistant lubricant with a long-lasting lubricating effect, based on a ceramic paste. The composition of the lubricant does not contain metal elements protruding as abrasive particles. The manufacturer declares that the product is intended for lubrication of threaded connections and various joints operating in a wide operating range, from -40 ° C to + 1200 ° C. In particular, it is excellent for laying it in parts and assemblies of the vehicle’s braking system, as well as for servicing ABS and ASR systems..
The product perfectly protects the surfaces treated with it from corrosion (including electrolytic), eliminates squeaking, is resistant to salt water, non-aggressive chemical compounds (acids, alkalis). Before surface treatment, the container must be shaken in order to activate its contents. The surface to be treated must be dry, clean and free from grease. note that Do not spray Presto Keramik-Spray on friction surfaces! The greatest effect from the use of this high-temperature grease appears after the solvent in its composition has completely evaporated..
Reviews of Presto’s heat-resistant grease have shown that it is quite effective and protects well the threaded connections where it was laid. Therefore, the product is definitely recommended for purchase, especially considering its lower price than competitors. Ceramic heat-resistant grease Presto Keramik-Spray is sold in a 400 ml aerosol can. Its article is 217616. The price of the goods for the specified period is about 570 rubles.
FEBI brand paste
In this subsection, we will talk about two heat-resistant lubricants – Anti-Seize ceramic paste for brake pads (the so-called white) and heat-resistant ceramic grease for installing injectors and glow plugs. Their characteristics are similar. The operating temperature range of the first grease is -30 ° C to +1400 ° C. It does not contain metals, prevents the appearance of noise in disc brake systems of cars (both with ventilated and non-ventilated discs installed). The grease is resistant to cold and hot water, as well as non-aggressive chemical compounds (weak solutions of acids and alkalis). Perfectly protects the surface from corrosion. Threaded connections processed with its help are easily unscrewed even after a long time. Please note that even the manufacturer himself indicates that this product cannot be used as a lubricant for caliper guides!
Candle and nozzle grease has similar properties. It is positioned as a high-temperature grease designed to prevent the formation of corrosion between injectors or glow plugs and directly to the cylinder head (in the seats). It has a high temperature limit – + 1400 ° C, that is, it can be used in difficult conditions. Resistant to acids and alkalis, therefore does not lose its properties under the influence of carbon monoxide.
Real tests show their high efficiency. However, before adding grease, you must carefully read the instructions for its operation. In particular, both threaded connections must be thoroughly cleaned before laying to keep them clean and free from grease..
Ceramic brake pad paste is sold in a 100 ml tube. It has an article number 26711. The price is approximately 950 rubles. As for the protective grease for candles (nozzles), it is sold in cans weighing 50 grams. The article of such a package is 26712. The price for the specified period is 700 rubles.
Permatex Ceramic Extreme Brake Parts Lubricant
Permatex Ceramic Extreme Brake Parts Lubricant is positioned by the manufacturer as a ceramic grease for extremely exploited brake units. Ceramic particles not only reduce the level of operation of individual units, but also exclude the occurrence of squeals and squeals during braking, which can be performed due to the failure of the caliper. Can be used as a preventative measure to prevent sticking / souring of long axles, guides and brake caliper fasteners. It can also be used in rotating and sliding parts operating in high humidity and high temperature conditions. In particular, the operating temperature range of the grease is -46 ° C to + 1649 ° C.
The manufacturer states that this lubricant can be applied to mounting bolts, bushings and pins, brake pad backing plates, caliper pins and pistons. The instructions indicate that before applying the product to the surface, the latter must be thoroughly cleaned and degreased. This will ensure that the product works well and lasts. Tests conducted by enthusiasts have shown that Permatex Ceramic High-Temperature Grease really protects brake system elements from wear and makes them easy to dismantle afterwards. However, the disadvantage of this lubricant is its relatively high price..
It is sold in two types of packages – a disposable sachet weighing 4 grams, as well as a 148 ml tube. For the first product the article will be – 9973, and for the second – 20354. Accordingly, their prices will be 360 rubles and 1500 rubles.
Bardahl Pate de Montage Haute Temperature
Bardahl Pate de Montage Haute Temperature High Temperature Ceramic Assembly Grease is versatile and can be used in most automotive systems. In particular, in threaded connections of a turbine, exhaust system, brake calipers, suspension arms, for mounting spark plugs and glow plugs, on car wheel studs, as well as on other parts made of steel and cast iron. It can also be used not only in automotive, but also in industrial equipment, on various technological equipment.
Ceramic grease Bardal provides reliable protection of the treated surfaces against corrosion (including electrolytic), as well as negative changes caused by exposure to high temperatures. It can be used up to + 1000 ° С. The lubricant prevents seizure and blocking of the moving joints of individual parts, protects them from oxidation and exposure to non-aggressive chemical compounds. Judging by the reviews, it has average performance characteristics. At the same time, it is definitely recommended for purchase, it will be useful in the garage.
It is sold in 400 ml aerosol cans. The article of this product is 1345. Its price is about 800 rubles.
CRC Metal Free Paste
CRC Metal Free Paste is positioned by the manufacturer as a heat-resistant ceramic grease without metal particles. In fact, it is a universal ceramic-based product, and can be used not only in automotive technology, but also in industry and when performing various installation work with parts made of appropriate materials. Has a wide temperature range – from -40 ° C to + 1400 ° C. It well protects parts from the appearance of corrosion on their surface, prevents seizure, corrosion abrasion, fretting corrosion. There are no free metals in the grease. Resistant to cold and hot water (practically not washed off by it), as well as to various chemical compounds (weak solutions of acids and alkalis). Liquefied petroleum gas propellant is used in aerosols instead of chlorinated solvents.
With the help of CRC Metal Free Paste high-temperature grease, you can process: disc brakes, cylinder covers, connecting elements (bolts, nuts) in the exhaust system of a car, as well as a wide variety of bushings, shafts, splines, mandrels, keys, threaded parts, fittings, pipe connections, turbines, heat exchangers. note that do not use grease on operating equipment, as well as in oxygen systems and systems where acetylene is present, it is explosive! Use the aerosol only in a well-ventilated area..
Reviews found on the Internet allow us to judge the average effectiveness of this tool. However, if you find it on sale, then it can be quite recommended as a preventive agent for use in a car or industry (everyday life)..
It is sold in a 300 ml aerosol can. The article of such a package is 104341401258. Its price is 800 rubles.
If you have a positive or negative experience of using the listed lubricants or products that are not included in the rating, tell us about it in the comments. This will help other car owners buy ceramic grease with the best performance for specific tasks..
Ceramic high-temperature grease is an excellent tool designed not only to reliably protect individual parts of the car from the harmful effects of high operating temperatures and corrosion, but also later help to easily dismantle a failed part for its replacement. However, when applying the lubricant, you should always strictly adhere to the instructions for its use. In particular, do not use an excessive amount of it, and also use it only for the parts and operating conditions specified in the documentation..
As of the summer of 2020, Liqui Moly Keramik-Paste still remains the leader according to customer reviews. Prices for all lubricants from the rating increased by an average of 100-150 rubles compared to 2018 (the time this article was being written). It is also worth noting that now Kroon Oil Ceramic Grease is sold only in 400 ml packs (200 ml, 600 mg and 18 kg packs are temporarily not available), and BARDAHL 1345 ceramic grease is difficult to find on sale.
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