Tried and Tested, Total Rust and Corrosion Protection

Whether your products are being shipped overseas, sitting in inventory on a shelf or waiting for the next metal finishing process, they represent a significant dollar investment.

You want to protect that investment from rust and corrosion.  That’s where Hubbard-Hall can help. Our expert team has decades of experience solving rust and corrosion challenges across industries.

Our Metal Guard® line of precision rust preventatives is custom designed to address manufacturing’s hardest problems. Whether you need enhanced lubricity, a dry-to-touch finish, 200 hours of salt spray protection, or short term in-process corrosion protection, we’re here to help.

"We've worked with Hubbard-Hall for over 30 years. We rely heavily on their technical expertise. They are extremely responsive. "
Bob McElwee
Cleveland Black Oxide

Aqueous Corrosion Protection

Recommended for short to medium-term indoor production, the Metal Guard® rust preventive concentrates for aqueous systems are completely water-soluble and emit extremely low to no VOCs. These products make an excellent choice as in-process corrosion inhibitors and are easily removed by alkaline cleaning.

Putting The Brakes on Flash Rust


A leading remanufacturer of automotive brake calipers was having problems with flash rust appearing on their finished goods.

Hot Test Fluid Corrosion Protection Additive


Metal Guard 830 HTF is a water-soluble, hot test fluid additive designed for high performance internal combustion engines.

Precise Corrosion Resistance, Lubricity and Decorative Finish


The Metal Guard product
line offers 42 rust preventative variations that are specific to
your needs.

Bob's Brain:  Rust Prevention

Bob's Brain: Rust Prevention

The most common type of corrosion – called atmospheric corrosion – occurs when a metal surface is exposed to oxygen and moisture which then causes a chemical reaction producing iron oxide or rust. For a metal finisher rust is a problem with real consequences. Here we are talking to Larry Ensley, Director of Technical Applications and sharing ideas on how to address it.

Water Based Corrosion Inhibitors

Operating Temperature
(ASTM D-2247)
Metal Guard 800-D11

Ambient.5-5%48 hrs. (Over bare steel)steel, stainless steel
Metal Guard 8308.2Ambient to 160° F5-20%50 hrs. (Over bare steel)castings, iron, steel
Metal Guard 85011Ambient2-4%36 hrs. (Over bare steel)iron, steel

Water Displacing Rust Preventative for Dip, Spray or Brush Applications

ProductBaseFlash PointFilm CharacteristicCorrosion Protection
(ASTM B-117)
Metal Guard 450Solvent
142°FDry-to-touch48 hrs. (Over black oxide)x
Metal Guard 510Solvent/Oil145°FOily thin film100 hrs. (Over black oxide)x
Metal Guard 560Solvent/Oil142°FOily thin film180 hrs. (Over black oxide)x

Water Emulsifiable Metal Guard Products

ProductRecommended Operating TemperatureConcentrationCorrosion Protection
(ASTM B-117)
Corrosion Protection
(ASTM D-2247)
Metal Guard 320150°F5-20%100 hr. (Black Oxide, 10% solution)
Metal Guard 700Ambient50-100%360 hr. (Bare Steel, 100% solution)x

Wax Emulsions and Acrylic Resins

ProductPropertiesConcentrationCorrosion Protection
(ASTM D-1735)
Film CharacteristicStable Emulsion
Metal Guard 600Acrylic lacquer50-100%Clear hard filmx
Metal Guard 660Styrennated acrylic laquer50-100%Clear hard filmx
Metal Guard 914Wax emulsion50-100%Soft dry filmx
Metal Guard 916Wax emulsion50-100%Clear non-tacky UV-traceable filmx
Metal Guard 919Wax emulsion50-100%120+ hr. of water fog exposureThin dry filmx

Let's Talk


Need help choosing the right rust preventative?

Getting the right answer starts with asking the right questions. That’s why we’re here. 1-866-441-5831