High-performance fluorosilicone grease solutions for lubrication and sealing in harsh operating environments

Our company's independently developed BD-FZ451 and BD-FZ452 are specifically designed to provide solutions for innovative lubrication and sealing materials in harsh operating conditions. Traditional lubricants (greases) such as hydrocarbon-based lubricating oils and lithium-based esters have issues like short service cycles and poor resistance to harsh environments. With the rapid iteration and upgrading of industrial development, applications such as axial high-speed motors, miniature drone motors, fully encapsulated precision instruments, harsh environments in wind power generators, and requirements for long-term static lubrication combined with instantaneous response in ultra-high voltage disconnecting devices, all clearly demand the iteration of entirely new mechanical lubrication and sealing materials. BD-FZ451 and BD-FZ452 are the new lubrication and sealing materials developed in response to this market demand.

Core Chemical Architecture

The core chemical architecture of BD-FZ451 and BD-FZ452 is fluorosilicone oil, utilizing polytetrafluoroethylene (PTFE) as the thickener and solid lubricant. This combination forms a fully fluorinated lubrication system, which is the fundamental source of its exceptional performance.

In industrial applications, traditional hydrocarbon-based greases or conventional synthetic greases (such as polyalphaolefin PAO or esters) undergo chemical degradation in their molecular structures when exposed to strong solvents, acids, bases, and other corrosive chemicals or high temperatures, leading to loss of lubrication performance.

The molecular backbone of fluorosilicone oil, due to the introduction of fluorine atoms, exhibits extremely high chemical inertness and thermal stability, with properties similar to the renowned stable PTFE material. This design choice reflects profound engineering considerations. The overall performance of a grease often depends on its weakest component. If chemically stable fluorinated oil is mixed with traditional metal soap-based thickeners (such as lithium-based), under chemical erosion conditions, the thickener will be destroyed first, causing the grease's colloidal structure to collapse, separation of oil and soap, and rendering the entire grease ineffective even if the base oil itself can withstand it.

By using the similarly fluorinated polymer PTFE as the thickener, BD-FZ451 and BD-FZ452 achieve uniform chemical inertness across the entire grease matrix (base oil and thickener). This synergistic relationship is the fundamental reason for its "excellent resistance to most chemicals." This means that the lubricant does not simply "resist" chemicals but essentially does not react in chemical environments. This achieves a higher level of performance, which is crucial for applications explicitly marked as "reactive service." Additionally, PTFE micropowder itself is an excellent solid lubricant, providing extra friction reduction and wear protection under boundary lubrication conditions, further enhancing the product's performance under high loads.

Composed of our company's independently developed fluorohydrocarbon-modified polydimethylsiloxane (FS) combined with specially treated nanoscale fluorinated polymer (PTFE). Due to its excellent chemical stability, it possesses superior water resistance, oil resistance, chemical corrosion resistance, extreme temperature resistance, high load capacity, and UV aging resistance that ordinary hydrocarbon-based lubricating oils (greases) cannot match.

Core Performance and Benchmark Parameters

The performance advantages of BD-FZ451 and BD-FZ452 can be quantified through a series of key parameters, which together constitute their capability to address industrial challenges.

Broad operating temperature range: BD-FZ451's operating temperature range is -40°C to 232°C. BD-FZ452's operating temperature range is -29°C (-31°C) to 232°C. This broad range ensures stable lubrication performance whether in frigid outdoor environments or high-temperature process equipment, avoiding grease hardening or loss due to temperature fluctuations.

Outstanding chemical and solvent resistance: Product data clearly states that these two greases can resist erosion from solvents, acids, chlorides, fuels, and oils. This makes them ideal for equipment directly or indirectly contacting corrosive media in industries such as chemical processing and fuel handling.

Excellent water washout resistance: In humid or water-splash environments, grease loss is a common issue. According to standard tests for BD-FZ451 and BD-FZ452, BD-FZ451's water washout loss is less than 0.3%, while BD-FZ452 is only 0.1%. Such low loss rates mean the lubricating film can persistently adhere to component surfaces, providing reliable protection even in water or steam environments.

Broad material compatibility: These two products are compatible with most gaskets, seals, packings, plastics, and elastomers. This is crucial for overall system integrity. Many conventional hydrocarbon-based lubricants cause common elastomers (such as nitrile rubber NBR or ethylene propylene diene monomer EPDM) to swell, soften, or become brittle, leading to seal failure and leakage. The chemical inertness of fluorosilicone oil prevents reactions or dissolution with the polymer chains of sealing materials, thereby protecting the physical properties and dimensional stability of seals. Therefore, using these two greases not only protects the lubricated metal components but also actively extends the life of the entire sealing system, reducing the risk of medium leakage due to seal failure. This has immeasurable value in the chemical, oil, and natural gas industries handling hazardous chemicals or high-value materials.

Core Application Scenarios

BD-FZ451, with its medium base oil viscosity and high speed factor, is specifically designed for dynamic bearing applications at medium to high speeds, aiming to ensure long-term reliable operation of moving parts.

Case 1: Agricultural Drones

Agricultural drones have high payloads, with wing bearings easily exposed, and operating environments involving rain, snow, potential chemical contact, and other harsh scenarios. Using BD-FZ451 as the grease ensures long-term lubrication performance in adverse environments.

Case 2: High-Speed Motors

High-speed motors in harsh environments require high-temperature resistance. Using BD-FZ451 as the grease ensures normal lubrication performance in prolonged high-temperature environments.

Case 3: High-Voltage Circuit Breaker Tripping

High-voltage circuit breakers are critical protective devices in power grids; their ability to instantaneously and reliably interrupt current during faults directly impacts the safety and stability of the entire grid.

The needle roller bearings in the tripping mechanism of high-voltage circuit breakers remain in long-term static state during normal operation but must respond at millisecond speeds when action is needed, overcoming enormous mechanical resistance. Research and field experience indicate that poor lubrication or lubricant degradation is one of the main causes of circuit breaker failure. Conventional greases, over service periods of years or even decades, will gradually harden, dry out, or form sticky deposits due to oxidation, water ingress, and environmental contaminants.

This significantly increases friction in the tripping mechanism, leading to serious consequences such as "tripping time delay" or even "failure to trip." A single failure to trip can trigger chain reactions, causing catastrophic damage to equipment (such as transformers), widespread blackouts, and enormous economic and social impacts.

The fluorosilicone chemical composition of BD-FZ451 provides extraordinary long-term stability, effectively resisting oxidation and drying out. It forms a persistent, low-friction lubricating film on bearing surfaces, ensuring smooth mechanism operation even after 20 years of static storage. Its most noteworthy value lies in extending the circuit breaker's lubrication maintenance cycle to 20 years or longer. This shifts the maintenance mode from frequent, high-cost, high-risk periodic operations to a long-cycle, predictable asset management strategy. Its value is not only in saving lubricant and labor costs but more importantly in preventing major grid accidents and equipment damage that could cause enormous economic losses. Investing in advanced lubricants like BD-FZ451 is equivalent to purchasing long-term insurance for the safe and stable operation of the power grid, with strategic significance far exceeding its material cost.

BD-FZ452 features extremely high base oil viscosity, designed to provide excellent sealing and lubrication dual functions under high-load, low-speed, or static conditions, especially suitable for critical equipment such as valves, seals, and packings.

Case 1: Wind Power Generators

Wind power generators are expensive to manufacture and install, exposed long-term to harsh environments like wind, snow, rain, dust, salt fog, and extreme temperatures, with high maintenance costs. Therefore, BD-FZ452 is most suitable as a sealing grease.

Case 2: Chemical Pumps and Valves

In the chemical, oil, and natural gas industries, ensuring seal integrity and operational flexibility for chemical stirrers, pumps, chemical process equipment, fuel and solvent handling equipment, and lifetime sealed bearings operating under high speeds, heavy loads, and wide temperature ranges requires comparative analysis. Analysis shows that correctly selecting BD-FZ452 can significantly extend equipment maintenance cycles, improve operational reliability, and enhance safety under chemical erosion and extreme temperature conditions, thereby bringing considerable economic benefits and safety assurances to enterprises.

Case 3: Household Faucets

Conventional greases in household hot water valves are washed away by hot water, gradually losing lubricant and causing valve sticking and poor sealing. This does not match the service life of copper alloys. Without changing any other conditions, using BD-FZ451 as the grease enables ordinary faucets to achieve "lifetime maintenance-free" status, dramatically increasing their commercial value several times over.

Others: In ordinary operating environments, BD-FZ451 and BD-FZ452 also offer excellent cost-performance ratios. Traditional lubricating oils (greases) cause mechanical failure, bearing scrapping, valve malfunction due to aging, corrosion, and loss, shortening machine life and increasing equipment maintenance labor costs. Replacing with BD-FZ451 and BD-FZ452 achieves significant overall cost-performance by saving costs and extending machine service life.