Saturday, January 9, 2016

How Corrosion Resistant Coating Protects From Corrosion?

Corrosion is destructive and indicates an attack on the surface due to the chemical reaction between surface and environment. The corrosion affects the surface properties and causes the negative performance of the metal. To prevent equipment from wear, corrosion resistant coatings are applied. Actually, corrosion is an electrochemical process where metal reacts to its environment to generate oxide or another compound.

During the manufacturing process, use of harmful chemicals and solvents complicates the corrosion process. The corrosion issues are solved with the help of coating options. The plasma coatings include various options where corrosion resistance thermally sprayed metals and polymers, or a combination of the two technologies are used.  For the life of the equipment, the manufacturers and suppliers must use the right type of material. The application of corrosion resistance coatings protects the metal components from moisture, oxidation, salt spray, or from different environmental chemicals or industrial chemicals. The anti-corrosion coatings allowed protection to metal surfaces and inhibits the contact between the corrosive materials and chemical compounds. The Salt Spray Testing procedure is performed to check the resistance power of metal coatings.

Salt Spray Testing – For checking the Corrosion Resistance Power of Surface Coatings
Since metal coating plays vital role to protect from corrosion, the Salt Spray Testing is an effective procedure performed in a corrosive environment that uses to generate relative corrosion resistance information for samples of metals exposed in a test chamber. The role and limitations of accelerated corrosion testing must be carefully understood by the users of protective coatings in manufacturing, construction or engineering industry.

The testing equipment for performing the salt spray testing is a double walled chamber that is fitted with a glass wool insulation ensuring the reliable test results. The testing device is designed to fulfill the international standard of testing. The air flow meter and air jacket heating system are equipped for effective testing procedures.


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