An anti-corrosion treatment is any protection applied to metal to hold back oxidation and the attack of salt air. It may come from the factory, like galvanising or a special finish, or be applied afterwards with paints or specialist products.

For security grilles, metal doors and outdoor fittings, the usual approach is to start with parts that are already protected, galvanised or stainless steel, and touch up the paint when it starts to lift.

For locks and lock cylinders, the simple care is to clean the face from time to time and lubricate with a dry product or one made for locks, never with oil. In a coastal home that stands empty for months, it is worth checking them when you come back. If you are going to replace parts, we help you choose materials that will last in security upgrades.

Questions that mention it

Do escutcheons corrode in salt air?

An escutcheon with a poor finish does end up pitted and seized. With a finish designed for outdoor use and the odd clean, it lasts much longer. Read the full answer

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