Hot Selling PFPE-Grease Reduction

Perfluoropolyether grease (fluorine grease) is refined from PTFE, PFPE with
additives. In the chemical industry, PFPE is the ideal working fluid for vacuum
pumps; in the electronic industry, it is a high-quality lubricant for vacuum
mechanical pumps in the production of semiconductors; in the mechanical
industry, PFPE is suitable for high-temperature and chemically stable bearings
and electromechanical equipments; in the nuclear industry and aerospace
industry, PFPE is used because of its unique performance; and in the magnetic
media industry, it is a high-quality lubricant for hard disks and magnetic
tapes. With its high temperature, ultra-long lubrication cycle, waterproof, acid
and alkali resistance, PFPE performs well in the high temperature environment of
the food industry, with high cost performance and a service life far exceeding
that of similar products.


Perfluoropolyether grease, commonly known as fluorine grease, is refined from
polytetrafluoroethylene (PTFE), perfluoropolyether (PFPE) and additives. It has
excellent thermal stability, chemical inertness, low saturation vapor pressure,
good lubricity and viscosity-temperature characteristics. In the field of space
machinery lubrication, especially in the lubrication of some components with
high precision requirements, it has been widely used, mainly in the following
areas.





(1) Chemical industry: PFPE is used as working fluid in various vacuum pumps
[rotary pumps, turbo-molecular pumps and vapor diffusion pumps]; when there are
corrosive gases in the operating environment, PFPE is used as lubricating oil
for compressors and valves.


(2) Electronics industry: the use of plasma etching, LPCVD and plasma
cultivation and other technologies to produce semiconductors to be used in a
number of vacuum mechanical pumps, and PFPE as a vacuum mechanical pump
lubricant to achieve satisfactory results.


(3) Machinery industry: PFPE is often used as high temperature and chemically
stable porous metal bearings, conveyor belts, paper and textile machinery
lubricants, when used as a plastic bearing lubricant, its anti-wear ability to
improve when some electromechanical equipment (such as current contactors,
switches and buttons and sliding electrical contactors, etc.) in the need for
good lubrication and resistance to arcing is often to use PFPE lubricants.


(4) Nuclear industry: in the UF6 enrichment workshop, when the temperature is
higher than 130 ℃ when the lubricant is required to resist the chemical impact
of UF6, but also requires dry, dust-free and low vapor pressure, PEPE is allowed
to be used as a super-centrifugal bearing lubricant lubricant in such working
conditions.


(5) Aerospace industry: Because PFPE has a wide range of liquid temperature,
low evaporation, high static viscosity, very low vapor pressure, low flow
temperature and good high-pressure lubrication in the aerospace industry has
been used.


(6) Magnetic media industry: low coefficient of friction, low volatility and
good insulation make PFPE can be used as the lubrication of hard disk, magnetic
tape and other magnetic recording media on instruments such as juice calculator,
video recording and automatic recording device. 


The biggest characteristics of
perfluoropolyether grease: high temperature, long lubrication cycle, waterproof,
good acid and alkali resistance. Most of the general food industry is used in
high temperature and longer lubrication cycle requirements of the position, and
seals. It can be said that the highest cost-effective products for
high-temperature environments, high temperature 200 ℃ to 260 ℃, its service life
than 300/F-YL products up to 10 times more than the cost-effective compared to
peers more than 30% lower.

    In the high-temperature battlefield of industrial equipment, the performance of lubricating materials directly determines the "life and death" of the equipment. The operating temperature of traditional mineral greases and synthetic greases is firmly limited to the range of 150℃-200℃. Once the critical temperature is exceeded, rapid decomposition and evaporation will not only shorten the lubrication cycle, but may also cause fatal failures such as bearing jamming and component damage. Jialede perfluoropolyether high-temperature grease redefines the high-temperature lubrication standard with four hard-core performances.



1.Across the temperature difference limit of -60℃ to 300℃ From extremely cold industrial refrigeration equipment to the surrounding of high-temperature furnaces, Jialede perfluoropolyether grease always maintains stable rheological properties. It does not harden at -60℃ and does not oxidize at 300℃. It continuously forms a dense lubricating film in extreme temperature differences to ensure stable operation of the equipment under all working conditions.


2. "Armor Guard" in chemical corrosion environment Faced with the erosion of strong acids, strong alkalis and strong oxidants, ordinary greases will quickly fail. Jialede perfluoropolyether grease, with its highly stable molecular structure, still maintains lubrication performance under chemical attack, building a long-term protective barrier for equipment such as chemical reactors and electroplating production lines.


3. Zero conflict with metal materials Adapted to working conditions below 260°C, Jialede perfluoropolyether grease remains chemically inert with all metal materials to avoid electrochemical corrosion and material degeneration. This feature significantly extends the service life of precision machinery and aerospace components, greatly reducing maintenance costs and downtime losses.


4. Safety revolution with zero ignition point In high-temperature, flammable and explosive petroleum refining, lithium battery production and other scenes, Jialede perfluoropolyether grease completely eliminates the risk of spontaneous combustion of lubricating media. The zero ignition point feature not only eliminates safety hazards, but also provides continuous stable lubrication in ultra-high temperature environments, building a double safety line for high-risk operations. 

    Jialede perfluoropolyether high-temperature grease breaks through the bottleneck of traditional lubrication with subversive performance, and provides long-term and safe lubrication solutions for high-temperature, corrosive and high-risk working equipment.

Today, Jialede will take you to deeply understand the "noble" in lubricating oil - perfluoropolyether grease.



Perfluoropolyether (PFPE, English name Perfluom Polyethers) was first studied in the 1960s and is a relatively special type of perfluoropolymer compound.

Its average molecular weight ranges from 500 to 15,000. There are only three elements, C, F, and O, in the molecule. It has the characteristics of heat resistance, oxidation resistance, radiation resistance, corrosion resistance, and non-flammability. It is used as an extremely reliable lubricant in cutting-edge fields such as military, aerospace, and nuclear industry. Today, perfluoropolyether is widely used in chemical, electronic, electrical, mechanical, nuclear, and aerospace fields.Because the fluorine atoms in perfluoropolyether have strong electronegativity, most of the carbon chain is shielded by fluorine atoms. Compared with hydrocarbon polyethers, it has the advantages of high density, low surface tension, low volatility, good viscosity, non-flammability, good dielectric properties, good lubricity, and is well compatible with plastics, rubber, and metals. It is a low molecular weight fluorinated polymer, and its viscosity is closely related to its molecular structure and average molecular weight. PFPE with a larger molecular weight has low volatility, a wider liquid temperature range and excellent viscosity-temperature characteristics.



Jialede perfluoropolyether grease has a stable molecular structure, and its high temperature resistance, fire resistance, radiation resistance and chemical resistance are also particularly excellent. It is suitable for lubricants under strong chemical conditions. However, the price of perfluoropolyether grease is relatively expensive due to its material.
Jialede has been focusing on the research and development of special lubricants and greases for 16 years.

Welcome to contact us for consultation and provide free sampling and testing.

Perfluoropolyether grease has excellent high temperature resistance, chemical corrosion resistance and wear resistance, and is often used in extreme environments (such as aerospace, semiconductor equipment, precision instruments, etc.). However, if it is found to be too viscous during use, it may affect the lubrication effect or equipment operation. The following is a detailed analysis and treatment method for its "too sticky" problem:


Analysis of the reasons for excessive viscosity
1. Improper selection of base oil viscosity: The viscosity of perfluoropolyether grease is determined by the viscosity of the base oil (perfluoropolyether). If the viscosity grade of the selected base oil is too high (such as ISO viscosity grade greater than 460), it will show obvious stickiness at room temperature.
2. Excessive thickener content: The content of thickener (such as polytetrafluoroethylene PTFE) in the grease is too high, which will increase the overall viscosity (such as NLGI grade exceeding No. 2), and thus appear more viscous.
3. The operating temperature is too low: The optimal operating temperature of perfluoropolyether grease is usually -20℃~260℃. If the ambient temperature is lower than its applicable lower limit, the fluidity of the base oil decreases, which will cause the grease to thicken.
4. Contamination or deterioration: After the grease comes into contact with water, dust or chemical media, the structure may change, resulting in an abnormal increase in viscosity.

Specific treatment methods
1. Adjust the use environment or increase the temperature under working conditions: If the viscosity is caused by low temperature, the grease can be restored to fluidity by preheating the equipment or increasing the ambient temperature. Reduce the load or speed: High-viscosity grease may increase friction under high-speed or heavy-load conditions. The operating intensity of the equipment can be temporarily reduced to observe whether the viscosity affects the performance.
2. Dilution treatment (caution required) Use special diluent: Perfluoropolyether grease needs to be diluted with fluorinated solvents, and avoid using ordinary organic solvents (such as ethanol, acetone) to prevent damage to the grease structure. Note: Dilution may shorten the lubrication life of the grease. It is only suitable for temporary adjustments, and it is recommended to operate under the guidance of professionals.
3. Replace the appropriate type of grease to reduce the viscosity of the base oil: choose a perfluoropolyether grease with a lower viscosity grade. Adjust the consistency grade: reduce the NLGI grade from No. 2 to No. 1 or No. 0, the consistency is softer and the fluidity is better. Consult the supplier: provide the equipment operating conditions (temperature, load, speed) and the existing grease model, and professionals will recommend the appropriate product.

Precautions
Avoid mixing: Mixing perfluoropolyether grease with other types of grease (such as lithium-based grease and silicone-based grease) may cause structural damage and aggravate the viscosity problem.
Safety protection: Wear gloves and protective tools during operation and operate in a well-ventilated environment.
Performance test: After any adjustment, the fluidity, lubrication effect and equipment operating temperature of the grease must be tested on a small range of equipment first, and then fully applied after confirming that there is no abnormality.

Recently, Jialede developed a wide-temperature-range high-performance product based on perfluoropolyether (PFPE) grease to address the harsh operating conditions of needle bearings in customers' air compressor main units. This grease maintains stable lubrication in environments with large swing angles, 1500 rpm oscillations, and long-term high loads of 2000 N.



Needle bearings in air compressor main units are typically subjected to frequent oscillations and high-rhythm stress, and during long-term use, they experience operating temperatures exceeding 100°C, even reaching 220°C under instantaneous extreme conditions. Ordinary greases are prone to problems such as high-temperature evaporation, shear thinning, or low-temperature hardening under these conditions. Jialede's PFPE grease possesses excellent high-temperature oxidation resistance, low-temperature fluidity, and extremely strong mechanical stability, covering a wide operating range from -40°C to 280°C.

The customer's validation program includes:
* Low-temperature performance testing: After the sample is left to stand at -40°C for 8–24 hours, the rheological state of the grease is observed and the compressor starting current is measured.


* High-temperature durability testing: Continuous validation for at least 3 months under operating conditions exceeding 100°C.


Approximately 50g of grease is required for each compressor's needle roller bearing.


To meet the above requirements, we have provided 200g samples of perfluoropolyether grease for customer testing. Jialede adheres to a real-world operating condition-oriented approach, optimizing product performance item by item from oil film formation and shear stability to low-temperature starting torque, ensuring it meets the long-term reliability requirements of OEMs.


In the future, Jialede will continue to work closely with OEMs to provide reliable perfluoropolyether lubrication solutions for compressors operating in high-speed, high-load, and high-temperature environments, helping customers improve equipment efficiency and extend service life. For more information or technical support, please feel free to contact us.