Corrosion and Salt Spray Testing

Salt Spray or Salt Fog Testing is an accelerated corrosion test method that primarily uses an atomised 5% saline solution to evaluate the corrosion resistance of metals, coatings and surface treatments.

During the test, samples are placed in a controlled chamber where they are continuously exposed to a fine mist of saline solution at a constant temperature. This testing accelerates the corrosion process, allowing the performance of materials and coatings to be assessed in a significantly shorter time that natural outdoor exposure.

• Salt Spray / Salt Fog: Controlled exposure to a salt-laden atmosphere, commonly used for comparative coating and material assessment.
• Neutral salt spray: Typically associated with 5% sodium chloride solution and pH control where required by the applicable method.
• Cyclic salt mist: Exposure routes that may include repeated salt mist and conditioning stages when the specification requires it, subject to technical review.
• Customer-specific methods: Requirements can be reviewed against OEM, defence, aerospace, marine or product-release specifications.

• Comparing the performance of coatings, materials or surface treatments.
• Supporting customer approval, product release or design freeze.
• Assessing products exposed to marine, coastal, offshore, road-salt or humid conditions.
• Responding to a customer specification that references corrosion or salt spray standards.
• Investigating effects on fit, function, appearance, safety or acceptance criteria.