Component Management

Fast-dry water-based micro corrosion inhibiting coating

12th August 2020
Alex Lynn

Cortec has continued to develop environmentally responsible corrosion solutions, including its line of water-based VpCI micro corrosion inhibiting coatings. Cortec’s water-based varieties minimise worker exposure to solvent fumes and typically reduce the amount of VOCs released to the atmosphere.

Among its top-performing water-based DTM (direct to metal) permanent coatings is EcoShield 386, which has been able to provide corrosion protection in salt spray chamber testing. Cortec has recently expanded this portfolio of water-based anti-corrosion coatings by developing a new fast-dry version called EcoShield 386 FD.

EcoShield 386 FD combines the worker and environmental advantages of a water-based coating with the performance of EcoShield 386 micro corrosion inhibiting technology in a topcoat that will force-dry in five to ten minutes. This is suited for manufacturers of pipes, tubes, and other metal components without enough time to cool and dry the coated parts before continuing the production process.

The faster drying time of EcoShield 386 FD makes it easier to handle components that need to be processed and stacked or packed right away, reducing or eliminating the problem of hot coated parts sticking to each other only to be pulled apart and cause coating failure and corrosion later.

EcoShield 386 FD is a water-based acrylic one coat system (topcoat) that can be applied DTM at 1.5-3.0 mils (37.5-75 μm) DFT (dry film thickness) to provide protection in harsh, outdoor, unsheltered applications. It contains 0.6 pounds of VOCs per gallon (72 g/L) and is an alternative to solvent-based and zinc-rich paints.

Even though water-based, EcoShield 386 FD provides corrosion protection. It relies on a complex mixture of non-hazardous ‘nano’ sized corrosion inhibitors to provide a more continuous layer of corrosion protection in micro cavities where traditional inhibitors may leave gaps due to their larger relative particle size. EcoShield 386 FD can be applied clear or matched to most custom colors for minimal change in surface appearance.

Corrosion protection is critical for newly manufactured metals headed for harsh, outdoor, or unsheltered conditions.

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