Dry fluoroplastic lubricant. Tarot Aviation Teflon Grease

Teflon (PTFE, polytetrafluoroethylene, fluoroplastic-4) is one of the most popular chemicals. It is widely used in industry, everyday life, various equipment, weapons, medicine, etc. The famous non-stick coating on frying pans is a special coating of Teflon. In addition, this substance has found application in lubricants. In this article we look at what Teflon grease is?

A little history

Like many discoveries in human history, Teflon was invented by accident. In April 1938, 6 a young chemist, Roy Plunkett, working for DuPont, discovered that the tetrafluoroethylene (TFE) gas he had pumped under pressure into cylinders had for some reason polymerized into a white, paraffin-like powder. This was Teflon.

The resulting substance did not react to mold, mildew, sulfuric, nitric, cold acetic acid, alcohol, gasoline, ether and freon. Subsequent study revealed that Teflon does not react to UV radiation, does not swell in water or rust, and has a very high resistance to electric current. In addition, it had a very low coefficient of friction and was non-flammable. The substance is destroyed only by fluorine, molten alkali metals, and chlorine trifluoride. The melting temperature ranges from +260 °C to +327 °C depending on the type of Teflon.

In 1941, a patent for polymer TFE (PTFE) was approved. Over the next 3 years, scientists developed a safe method for mass production of this material. The thing is that Plunket’s method was too dangerous: tetrafluoroethylene was pumped under pressure into cylinders that were placed in dry ice. The danger was that when a large amount of heat was released during the reaction, the gas containers exploded. A safe production method was found, but it was quite expensive.

Subsequently, Teflon was widely used for military purposes, as well as in the production of various bearings, pumps, valves and gaskets. Since 1949, the substance began to be used in the food industry. The problem of applying it to metals was also solved. In 1954, French engineer Marc Gregoire invented a method for applying material to aluminum. In 1955, the first frying pan with a non-stick coating based on Teflon was released, and in 1956, Tefal Corporation was founded, whose products are still the standard of quality today.

Types of Teflon lubricants

Teflon has been used as a lubricant almost since the discovery of the substance. PTFE has all the data for this: the lowest coefficient of friction among all known materials, high chemical resistance, insolubility in oils and fuels, low surface tension. Let's look at what Teflon lubricants are.

Greases

In greases, Teflon can be used as an independent antifriction additive or in a composition of white solid lubricants. Grease lubricants can be based on either mineral or synthetic oil, for example PAO (polyalphaolefin), PDMS (methyl silicone).

Mineral lubricants with PTFE can be used in metal-to-metal friction pairs. This is due to the fact that the base oil is aggressive towards rubbers and plastics. But synthetic lubricants can be safely used for lubricating plastics, elastomers, metals and their combinations.

Teflon greases can solve the following problems:

• Jumping movement
• Flushing out the lubricant
• Frequent re-lubrication
• Penetration of dust into a closed lubricated unit
• Abrasion
• Corrosion
• Destructive effects of chemical aggressive environments
• Destruction and deformation of plastic and rubber elements (synthetic lubricants only)

Oils

In oils, Teflon is used as an independent solid lubricant. Oils can be either in liquid or aerosol form. In addition, a distinction is made between mineral, synthetic and semi-synthetic materials. The area of ​​application and some properties are affected by the base, so it cannot be said that mineral water and synthetics are the same.

Also, to some extent, oils include special additives that are used for car engines. They are a solid suspension of Teflon in oil. Such products are quite popular and are used to improve the performance of internal combustion engines.

Liquid Teflon lubricants can solve the following problems:

• Reduced wear and friction
• Corrosion
• Abrasion
• Dust and dirt sticking to open areas
• Washing out with water
• Destruction of plastic and rubber elements

Coatings

Coatings come in both powder and aerosol form, where PTFE is suspended in a medium of solvents and binding agents. Powder coating is applied by rubbing. To do this, the surface is sprinkled with Teflon, and then, using a rag or a mating element, it is distributed over the entire surface.

It is enough to spray Teflon lubricant on one of the surfaces. Thanks to solvents, it penetrates into hard-to-reach places and microcracks, and binding agents promote the adhesion of PTFE to the surface.

Curing of Teflon-based coatings occurs both at room temperature and when heated to a certain temperature. After polymerization, a thin and very slippery film is formed, which somewhat levels the surface.

Teflon-based coatings can solve the following problems:

• Washing off the lubricant with water
• Performance in dusty and humid environments
• Eliminating squeaks
• Destruction of lubricant by chemically aggressive environments
• Jumping movement
• Destruction of plastics and elastomers
• Corrosion
• Difficult installation and dismantling

Peculiarities

Teflon lubricants are unique materials. These are one of the few products that provide excellent glide on various metal, rubber and plastic surfaces. In addition, oils and greases with PTFE have anti-accident properties. This means that after the base oil has evaporated or worn away, Teflon provides lubrication for some time.

Due to their very low coefficient of friction, PTFE materials can be used to service high-speed components that operate under low to medium loads. In this case, surface wear is completely eliminated. In addition, they speed up the running-in process of new parts.

Some lubricants have high load-bearing capacity (over 5000 N). Such products are excellent for heavily loaded equipment and machinery that also operate under shock loads.

One of the most important properties of Teflon lubricants is their chemical resistance. They are not destroyed by acids, fuels, oils and other substances. Therefore, they are widely in demand in the chemical industry and medicine, where the operating conditions of the equipment are quite specific.

All Teflon lubricants work well in dusty environments. An additional protective and lubricating layer, which forms PTFE, protects surfaces from contact with abrasives.

Application area

Lubricants containing PTFE are used in many industries, various vehicles and everyday life. Greases are used in rolling and sliding bearings, rolling and sliding guides, closed and open gearboxes, control cables, seals, etc.

Liquid oils are used for chain drives and sliding guides. They easily penetrate hard-to-reach areas, provide excellent wear protection, and are compatible with sealing materials.

Dry Teflon lubricants are used for lubrication of plastic and rubber elements of cars, components and parts of packaging, wood and metalworking equipment, parts of office equipment, molds of heat presses in polymer production, containers for heating glue in furniture production, etc.

Lubricants intended for high-speed components are not suitable for use in heavily loaded mechanisms. This is due to the composition of the lubricant.

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The coupling agent has very high resistance to heat. In this temperature range, there are very few chemical reagents (alkali metals and hot concentrated sulfuric acid) that can damage the film formed. Thus, Kontaflon 85 CRC differs from other lubricating coatings, since the temperature and chemical resistance of the surface is determined not by the lubricant, but by the properties of the lubricated material itself. Kontaflon 85 CRC can be used in conjunction with sensitive materials such as fabrics, paper, cardboard, wood. It can be used at extremely low temperatures, down to the boiling point of liquid nitrogen. It can also be used on unstable plastics, including in the presence of aggressive chemicals. Kontaflon 85 CRC can be used as a high temperature mold release agent in the production of plastic and elastomeric products.

Properties

• Surfaces treated with Kontaflon 85 CRC have the basic characteristics of PTFE: water-repellent, non-adhesive, non-contaminating, non-conductive, resistant to temperatures from -195°C to +260°C, non-flammable after solvent evaporation, chemically resistant.
• Good adhesion to the surface is ensured by a small amount of binder.
• The optimal alternative to mineral oils when clean, colorless, grease-free lubricants and release agents are required.

Application

• Lubrication of rotating, sliding and turning surfaces with low friction and high load: - industry: electronics, electromechanics, packaging, furniture, textiles, paper, cars, plastic, rubber; - household applications.
• Release agent for rubber and plastic parts.
• Lubricant for casting molds in the production of plastics and elastomers.
• Kontaflon 85 CRC is most easily applied using an aerosol. For use in large quantities, you can use the concentrate in liter containers. When covering large surfaces, it is recommended to use Cleaner 601 CRC as a solvent. For small parts it is recommended to use thinner for Kontaflon 85 CRC (Thinner for Kontaflon 85 CRC). Before applying lubricant, the surface must be cleaned and degreased. Metal surfaces can be degreased using Degreaser 65 CRC.
• Kontaflon 85 CRC is sensitive to humidity and must be stored in completely closed and sealed containers. When preparing a mixture for industrial use, it is prepared based on the amount used during the same day.
• After applying Kontaflon 85 CRC, surfaces can be polished with a dry cloth.

Within operating temperatures, PTFE is a very stable chemical. No hazardous health effects have been observed if lubricant particles come into contact with the skin or inside the body, however, when using lubricant in large quantities (on a production scale), it is recommended to use a dust mask and good ventilation.

When ignited, PTFE decomposes into components that can be toxic.

Smoking is prohibited when working with lubricant. Tobacco products should not be placed near the workplace as PTFE particles introduced into tobacco during smoking can become toxic.

Specifications

• Density at 20 °C: 0.59 g/cm 3
• Operating temperature: from - 195 °C to + 260 °C
• Average lubricant particle size: 5 microns
• Solvent drying time: 15 min.

Consumption of funds

• Not standardized

Factory packaging

• Aerosol can 200 ml (12 aerosol cans per box)
• Aerosol can 400 ml (12 aerosol cans per box)
• Industrial packaging 1 l (concentrate)

The use of universal fluoroplastic lubricant MDF - 288 solves emerging technological issues and allows you to avoid difficulties during operation of both simple and complex molds.

Product advantages:
The main difference between MDF-288 is that it belongs to the class of lubricants and does not create an abrasive paste during its use. The film is resistant to moisture and technical liquids. It does not evaporate from the surface and retains its properties at low (- 50 degrees C) and high (+ 250 degrees C) temperatures.

During operation, silicone lubricants collect fine metal shavings, which are formed as a result of friction of pushers, forming punches and other elements of the mold against each other. Also, ordinary workshop dust gets into the silicone grease, which, together with the chips, acts as an abrasive paste. Over time, the mixture of workshop dust and chips destroys the mold, creates “burrs” on the pushers and guides, and gradually grinds down the mold elements. Because of this, technological gaps increase, which in turn leads to the addition of polymer mass in the mold, and as a consequence, to its premature wear. Silicone grease leaves greasy stains on the surface, which affects the quality of the appearance of injection molded products and does not allow high-quality painting without additional effort.

Fluoroplastic lubricant MDF - 288 - a ready-made solution for your production!

Areas of use:
· Mold lubricant. Super-penetrating lubricant forms a film on the surface that provides a protective layer to the surface of the mold when producing products from rubber, rubber, plastic, polyethylene, polypropylene, fiberglass and other materials.

· The lubricant is intended for drawing installation cables in electrical installations of power supply and industrial enterprises. Forms a durable film on the surface of the cable sheath, easy to apply without the formation of drops.

· Lubricant for covering tables in paint shops.

· Lubricant for tire fitting work.

· Lubrication of knives for cutting paper, cardboard, artificial and natural leather.

· Lubrication of friction units of machines and mechanisms, bearings and gears, to reduce friction when cutting threads.

· Replacing silicone grease with more durable and high-quality fluoroplastic grease.

(from -50°C to +300°C)

DESCRIPTION AND SCOPE OF APPLICATION.

High-temperature fluoroplastic lubricant “Silaterm-300” is made on the basis of fluoroplastic and silicone oils. Designed for use in sliding bearings, threaded and other connections in aggressive environments, high humidity and high temperatures. Can be used in guides and in friction pairs: rubber - metal, metal - plastic, plastic - plastic, rubber - plastic. Designed for lubrication of any friction areas exposed to extremely high temperature loads, in friction units when molding tires, in baking ovens, rolling and sliding bearings in tunnel ovens, fans and calenders. The lubricant is chemically resistant and inert to all types of rubber and polymer materials; it can work in harsh conditions due to the high welding load (more than 3685 N). Unlike graphite and pigment high temperature lubricants, "Silaterm-300" is not prone to heat strengthening and has excellent mechanical stability.

QUALITY INDICATORS

PACKING: Plastic bucket 1 kg. (large container - upon request).

PTFE SPRAY CAR-REP is a high quality synthetic lubricant for universal use. Acts not only as a protection against corrosion, but also removes it. Prevents parts that are constantly in motion from seizing. Long-lasting lubricant, resistant to acids, salts, alkalis.

TEFLON ® is the world's most popular non-stick coating.