Our laboratories are at your disposal for conducting corrosion efficiency tests.

We have been formulators and manufacturers of anti-corrosion additives for over 35 years, which has allowed us to develop solid expertise in corrosion testing. We put this experience at your disposal to test, evaluate, compare, and improve your anti-corrosion products.

Flash Rust Test

“Flash Rust” is a rapid rust phenomenon that occurs during the drying phase on metal surfaces coated with water-based paint. This type of corrosion is characterized by the appearance of rust spots on the surface, often within minutes to hours after the coating is applied. The principle of this test involves artificially delaying the drying of the paint immediately after its application on a metal specimen.

Without anti-flash rust additive

With anti-flash rust additive

Metal Packaging Protection Test

Metal packaging containing water-based formulations can be damaged by corrosion if not properly protected. The presence of a coating inside the packaging is not an absolute guarantee. Indeed, the bottom seam, the weld bead, the handle supports, and the lid are sensitive parts. The test involves placing metal packaging in an oven at 40°C for a determined duration. This accelerated aging simulates the development of rust in the packaging. By comparing the control packaging containing the product without corrosion inhibitor with the packaging containing the additive product, we evaluate the effectiveness of the corrosion inhibitors at the tested dosage. This method is valuable for improving formulations and ensuring better durability of the packaging over time.

Salt Spray Test

The salt spray test is a standardized method for evaluating the corrosion resistance of paint systems. We apply the procedure of standard EN 9227. It is an essential comparative test to ensure durability and performance in corrosive environments.

Without anti-corrosion additive

With anti-corrosion additive

The test is carried out on painted metal specimens. The paint must be dry to the core. The metal specimens are exposed in a closed chamber, inside which a sodium chloride solution is continuously sprayed to form a uniform mist. To accentuate the penetration of saltwater, a scratch is often made in the thickness of the paint film.

The duration of the test is determined by the requirements for the paint’s durability. It is expressed in hours of exposure, which can reach several thousand hours. At the end of the test, the metal specimens are removed from the chamber and inspected for signs of corrosion: rusting, blistering, spreading at the scratch. The results reveal the protective effectiveness of the paint.

Condensation Test

The purpose of this test is to determine the corrosion resistance provided by paint systems applied on metal specimens. We perform the test at constant temperature and humidity. The test is carried out on painted metal specimens. Like the salt spray test, the paint must be dry to the core. The metal specimens are exposed for a determined duration and then inspected for signs of corrosion: rusting, blistering.

Glassware Corrosion Test

Standard NF R 15-602-7 (2020 version) defines a test to evaluate the quality and performance of coolant liquids used in road vehicles. This test ensures that coolant liquids are reliable and effective. The test involves immersing different metal alloys in a heated and oxygenated cooling solution, thus recreating real operating conditions. The mass variation and appearance of the metal samples after immersion provide an assessment of the coolant liquid’s effectiveness. The tested alloys include copper, brass, steel, cast iron, cast aluminum, and forged aluminum.

Cast Iron Chip Test

Standard DIN 51360-2 establishes a test to evaluate the effectiveness of machining fluids in corrosion protection. On a circular filter paper, a circle with a diameter of 4 cm is drawn. Inside this circle, 2 grams of cast iron chips (approximately 30 chips +/- 5) are distributed, which are then moistened with 2 mL of the test solution. Evaporation is prevented by keeping the environment closed for 2 hours. The results are then compared to the evaluation grid of standard DIN.