Water-based coatings can now include Cortec’s M-120 to enhance corrosion protection performance. M-120 is a water-based corrosion inhibitor additive that doesn’t contain any heavy metals.
M-120 can be used alone or in conjunction with other inhibitors. It increases the corrosion protection abilities of both water-based and solvent-based coating systems. The manufacturer recommends it for use in acrylic and alkyd resin paints. It protects carbon steel and aluminium with contact corrosion inhibitors that it contains. They eliminate in-can corrosion, inhibit flash rust and provide long term protection for metal substrates.
M-120 does not contain any heavy metals such as zinc phosphate, chromates, or barium. The additive is available in an off-white, beige coloured paste. It can be added to coating formulations at recommended loading levels between one to three percent based on the total formula weight.
Cortec’s brand new additive contains a unique blend of corrosion inhibitors. They protect against corrosion by forming a microscopic inhibitor layer along the contours of the metal substrate.
Older more traditional protective coatings rely on sacrificial metals such as zincs and chromates for corrosion protection. These inhibitors leave gaps that make it easier for corrosion to begin in micro-cavities due to their large particle size.
However in contrast to the older systems M-120 contains inhibitors that have an attraction to metal. They provide a protective layer in micro-cavities for fuller inhibitor coverage because of their ability to conform to the intricacies of metal surfaces.
Due to the negative environmental impact of traditional systems, market demand is increasingly shifting away to the water-based systems that are kinder to the environment. Water-based coatings are much easier to clean up compared to the older solvent-based systems.
M-120 is flexible enough to provide an added level of corrosion protection in settings where solvent-based systems are still preferred.