GLOSSARY TERM
Corrosion Inhibitor
A substance added to coatings to prevent rust and corrosion on metal surfaces.
INFO
What it is
A corrosion inhibitor is a substance added to a coating, or contained in a primer, that slows or prevents rust and corrosion forming on metal surfaces beneath the paint.
Why it matters
Corrosion is the main enemy of metalwork. Once rust takes hold it spreads under the coating and weakens the structure. An inhibitor protects the metal and extends the life of both the coating and the substrate.
Where it is used on a project
Built into systems for steel and metal cladding, structural steelwork, railings, and other exposed metal that has to stand up to moisture and weather.
How NECC approaches it
For metal surfaces, we specify primers and systems with the right corrosion protection for the exposure, so the finish both looks good and guards the metal underneath.
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FAQ's
What does a corrosion inhibitor do?
It slows or prevents the chemical reaction that causes metal to rust, protecting the substrate beneath the coating.
Where are corrosion inhibitors used?
On steel, aluminium, and other metals exposed to moisture or weather, where rust would otherwise undermine the coating and the structure.
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