The salt spray test is a scientific test that is conducted to test the corrosion resistance of different products. As we know environmental corrosion damages Metals and coatings, so to prevent this damage, manufacturers need to test their products whether they are corrosion resistant or how long they resist the effects of corrosion. So, for this purpose, a test is conducted which is known as a salt spray test. This test is useful in different industries all over the world. Some industries where salt spray test is used are; 

• Automobile
• Military
• Metal Industry
• Aerospace industry
• Electronic Industries

What is a salt spray test chamber used for?

For testing corrosion resistance of products, a test is conducted which is known as a salt spray test and this test is most commonly done with the help of a machine known as a salt spray test chamber.

A salt spray test chamber is an advanced instrument which allows the manufacturers to test the corrosion resistance properties of their products. 

There are different types and models of salt spray test chambers that can be used according to the specific test.

Hence, the use of a salt spray chamber is to conduct the salt spray test.

 

Who should use salt spray?

Salt spray test is used by different industries for checking the corrosion resistance properties of their products.

The most common industries where salt spray test is beneficial are;

Automotive Industry: For assessing the corrosion resistance properties of different components such as paint coatings, engine parts, car bodies etc.

Marine industry: For determining the corrosion properties of ship materials and coatings.

Aerospace: Assess the resistance of materials in the aerospace industry.

Electronic industry: In the electronic industry, a salt spray test chamber is used for assessments of corrosion resistance of electric bulbs, circuit boards, fans and various other products.

 

Why 5 NaCl is used in the salt spray test? 

A 5% solution of NaCl is used in a salt spray test to generate a highly corrosive environment in the test. A 5% NaCl (sodium chloride) solution is employed in the salt spray test because it closely resembles the corrosive environment prevalent in maritime circumstances. Manufacturers are able to evaluate the corrosion resistance of materials and coatings more rapidly thanks to the extremely corrosive mist that this concentration produces and speeds up the rusting process. In tests like ASTM B117, the 5% solution is standardised to provide uniform and repeatable findings across many sectors, guaranteeing that items can resist challenging conditions that are high in salt.