50-R Rust Inhibitor

An economical, aqueous based, interim process rust inhibitor for ferrous metals. Other notable products features include:

  • Provides a highly effective, invisible, non- sticky, non-greasy barrier.
  • Will not affect color of part.
  • This product does not contain any ingredients that are subject to rancidity.
  • Will not interfere with subsequent operations such as painting, soldering, brazing, welding, anodizing or electroplating.

Physical Properties

Appearance: Blue Liquid
pH @ 1% Solution: 9.0
Odor: Negligible
Foaming Action: Very Low
Solubility in water: Complete
Rinsing Action: Excellent
Metal Safety: Ferrous & Non-ferrous
Flash Point: None
Stability: Stable
Standard Container: 55 Gallon Drum

Refer to our Material Safety Data Sheet for additional information.

Usage and Dilution Instructions

Where severe rusting conditions are likely to occur, use 6 ounces of 50-R per gallon of water. For less severe conditions, use 3 ounces of 50-R per gallon. Solutions should be applied in final stage of parts washer by spray or soak application. Solution temperature can vary from room temperature to 140° F for steel parts and 60° to 80°F for cast iron or sintered metal parts. Solutions which are properly maintained in accordance to manufacturer's recommendations will give a minimum of 2-3 weeks protection if packed wet, 60 to 90 days protection if packed dry. Parts exposed to excessively high humidity, rain, mists, water or salt spray, acid fumes or harsh environments will have reduced protection periods. May be used in hot or cold solutions, however, when inhibiting cast iron or sintered metals, it is strongly recomm ended that ambient or cold water be used.

Handling & Storage

This product does not pose any fire hazards. Use good industrial hygiene practices such as wearing chemical safety goggles, rubber gloves, and an impermeable apron as necessary to prevent personal contact. If eye contact occurs, flush with plenty of water for at least 15 minutes and consult a physician. In case of skin contact, wash with soap and water, removing contaminated clothing and shoes. Keep the container tightly closed when not in use. Store product in the original container between 45° and 85°F. When stored as above, shelf life is a minimum of 2 years.


Progress Chemical guarantees its products will perform to your satisfaction when used in accordance to our recommendations. We back this guarantee with over 65 years experience. Our company has been certified to ISO 9001-2015 Quality Standards.

The Ultimate Solution for Rust Protection and Maintenance

When it comes to protecting metal surfaces from rust and corrosion, finding the right product can be a challenge. With so many options on the market, it can be difficult to know which one will deliver the results you need. That's where 50-R Rust Inhibitor comes in. Developed by Progress Chemical, this innovative product is designed to meet the unique needs of industrial facilities, providing effective rust protection and maintenance solutions that are both fast and efficient.

So, what exactly is 50-R Rust Inhibitor? In a nutshell, it's a highly effective, aqueous based, interim process rust inhibitor for ferrous metals. Unlike many other rust inhibitors that can be messy and affect the appearance of the metal, 50-R provides a highly effective, invisible, non-sticky, and non-greasy barrier that will not affect the color of the metal. This means that you can protect your metal surfaces from rust and corrosion without sacrificing their appearance.

One of the key benefits of 50-R Rust Inhibitor is its versatility. Unlike many other rust inhibitors that are designed for specific applications, 50-R can be used on a variety of different metal surfaces, including steel, iron, and more. Whether you're looking to protect your machinery, equipment, or other metal surfaces, 50-R has you covered.

Another advantage of 50-R Rust Inhibitor is its safety. Unlike many other rust inhibitors that contain harmful chemicals, 50-R is safe for both the user and the environment. It's non-toxic and free of harmful ingredients, making it a safe and responsible choice for any industrial facility.

So, how do you use 50-R Rust Inhibitor? It's simple. Just mix the recommended amount of 50-R with water and apply it to the metal surface you want to protect. For best results, let the solution sit for a few minutes before rinsing it off with water. Whether you're using it to protect your machinery, equipment, or other metal surfaces, 50-R provides fast and effective results every time.

Another notable feature of 50-R Rust Inhibitor is that it will not interfere with subsequent operations such as painting, soldering, brazing, welding, anodizing, or electroplating. This means that you can use it as an interim process and still be able to carry out other operations on the metal surface without any issues.

In conclusion, 50-R Rust Inhibitor is the ultimate solution for rust protection and maintenance. With its versatility, effectiveness, and safety, it's the perfect choice for any industrial facility looking to protect their metal surfaces from rust and corrosion. So why wait? Visit https://progresschemical.com today to learn more about 50-R Rust Inhibitor and how it can help you tackle your rust protection and maintenance needs.


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