Corrosion Inhibitor Add-In for Water-Based Paint




Paint formulators have much to think about when designing water-based coatings for metal. One key decision is the choice of corrosion inhibitor.

Fortunately, Cortec® makes it easy for formulators to add the power of Cortec® Micro-Corrosion Inhibiting Coatings to their own paints at any stage of the production process with M-120 corrosion inhibiting additive for water-based paints.

Where many coatings rely on sacrificial metals for corrosion protection, M-120 takes a different approach. It does not contain any heavy metals or zinc. Rather, it relies on the power of Cortec® VpCI® amine-carboxylate-based technology to form a microscopic corrosion inhibiting layer to protect metals at the microcavity level. This is where traditional inhibitors leave microscopic gaps due to their large relative particle size. M-120 helps fill in the gaps and can be used alone or in conjunction with traditional corrosion inhibitors or pigments to maximize the corrosion inhibiting ability of the paint. This VpCI® Technology prevents in-can corrosion – which is a common problem for water-based coatings – and has the ability to reduce scribe creep – a standard test method used to measure corrosion when coated panels undergo salt spray or humidity testing.

Beyond corrosion protection, one of the beauties of M-120 is its versatility and ease of use. It can be added to many types of water-based resin systems – epoxies, urethanes, acrylics, and alkyds. It provides corrosion protection for both carbon steel and aluminum. It is also very easy for formulators to mix into their coating to boost the level of corrosion protection at any phase of manufacturing, unlike many inhibitors that cannot be post-added.

Source: Cortec® Corporation

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