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A layer of paint protects against rust by acting as a barrier that prevents moisture and oxygen from reaching the metal surface. Since rust forms when iron reacts with water and oxygen, this protective coating inhibits the chemical reactions necessary for corrosion. Additionally, paint can contain rust-inhibiting compounds that further enhance its protective properties. By sealing the metal, paint not only improves aesthetics but also significantly extends the lifespan of the material.

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3w ago

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