The Ultimate Guide to Busch R-590 Oil Equivalent

Lubrication is key when it comes to keeping your vacuum pump in top condition. And when it comes to choosing the right oil, the options can be overwhelming.

The Busch R-590 oil has become an excellent choice for many vacuum pump users. It is known for its high viscosity and low volatility. But is there any equivalent of this oil?

In this article, we’ll explore some important things about this oil and also share some Busch R-590 equivalents. So, let’s get started with it.

Overview of Busch R-590 Oil

Bush R-590 oil is known as the industry standard when it comes to vacuum pump oil. It is a semi-synthetic, paraffin oil. They are designed for long life, especially in severe conditions! It has very low vapor pressure as well as exceptional durability.

Also has low evaporation loss, chemical resistance, rust and corrosion inhibition, and carbon build-up resistance. Compatible with R 5 series vacuum pumps. We recommend the 1000 and 1600 models. Registered with NSF as an H2 NSF lubricant.

Uses of Busch R-590 Oil

Busch R-590 oil is a synthetic lubricating oil that is specifically designed for use in vacuum pumps and systems. The oil is manufactured by Busch, a leading producer of vacuum pumps and systems for various industries. It offers several advantages over traditional mineral-based lubricating oils, making it an ideal choice for many applications.

One of the primary uses of Busch R-590 oil is vacuum pumps. The oil provides excellent lubrication and protection for the mechanical components of the pump, reducing friction and wear. This not only extends the lifespan of the pump but also ensures it operates smoothly and efficiently.

Another key use of Busch R-590 oil is in high-vacuum systems, such as those used in the semiconductor and electronics industries. These systems require high-performance lubricants that can withstand the demands of high-vacuum applications, including low vapor pressure and low outgassing. Busch R-590 oil meets these requirements, making it an ideal choice for these applications.

You can also use this oil in other types of vacuum equipment. For example, it can be used in rotary vane vacuum pumps, diffusion pumps, and molecular drag pumps. The oil provides excellent lubrication and protection for these components, ensuring they operate smoothly and efficiently.

Read: Vacuum Pump Oil

Another important use of Busch R-590 oil is in the medical industry. Medical devices that rely on vacuum systems, such as suction devices, often require high-performance lubricants that are free from harmful contaminants. Busch R-590 oil meets these requirements, making it an ideal choice for use in medical devices.

Equivalents of Busch R-590 Oil?

While Busch R-590 is an excellent choice for many applications, there may be situations where a substitute is necessary or preferred. Here, we will share some of the most Busch R-590 equivalents.

Synthetic Hydrocarbon Oils:

Synthetic hydrocarbon oils, such as polyalphaolefins (PAO) and esters, are commonly used as substitutes for Busch R-590 oil. These oils offer similar performance benefits to Busch R-590 oil, including low volatility, low outgassing, and high thermal stability. However, they may not be suitable for use in certain applications, such as those requiring extremely low vapor pressure or low toxicity.

Mineral Oil-Based Lubricants:

Mineral oil-based lubricants are a traditional alternative to Busch R-590 oil. They are readily available and relatively inexpensive, making them a popular choice for some applications. However, mineral oil-based lubricants have some disadvantages compared to synthetic oils, including lower thermal stability, higher volatility, and higher levels of outgassing.

Silicone Oils:

Silicone oils are another alternative to Busch R-590 oil. These oils are known for their excellent high-temperature stability and low toxicity, making them suitable for use in certain vacuum applications. However, they can be more expensive than other lubricants, and their low surface tension can make them less effective as a lubricant in some applications.

Fluorinated Hydrocarbon Oils:

Fluorinated hydrocarbon oils, such as perfluoropolyethers (PFPEs), are a specialized type of lubricant that is often used as a substitute for Busch R-590 oil. These oils offer excellent performance benefits, including low volatility, low toxicity, and high thermal stability. However, they are relatively expensive and may not be suitable for use in all applications.

Busch R-530 Vacuum Pump Oil Specifications

Check out the specifications of Busch R-530 to get a better idea of it:

TypeMineral Oil
Flash Point265 C / 509 F
Viscosity108 mm2/s (40.0 C / 104.0 F)
P.HNot Applicable
Average Change750-1000 Hours

Final Thought

So, there you have it: a comprehensive guide to Busch R-590 oil equivalent. We hope this article has answered all of your questions and cleared up any confusion you may have had about this oil. Remember, if you have any additional questions, don’t hesitate to comment on us. We’re always happy to help you. Thank you all.


Rio is a car & motorcycle mechanic who is working with different kinds of problems relating to oil and grease. He is also a passionate technical writer.