Pre Treatment Plant


Pre Treatment Plant

We are counted among the trusted Pre Treatment Plant Manufacturer and Supplier. Our Pre Treatment Plant is demanded in diverse industries for executing Powder Coating and Painting Processes. Our Pre Treatment Plant is manufactured using world-class materials and components. The Pre Treatment Plants, which we offer, are easy to handle and simple to work with.

Details

  • Batch (Hoist Type)/Automatic (Overhead Conveyor/Transporter Type)
  • Complete with Heating Systems and all other accessories
  • Both Type Deep and Spray Type


The Seven Stages Are As Follows

  • Water Rinse
  • Derusting
  • Water Rinse
  • Phosphating
  • Water Rinse
  • Passivation


What is Pre Treatment Process?
Pretreatment process is one of the most important and essential parts of the Powder Coating or Painting process. As all the materials, which have to be Powder Coated / Painted has to be totally cleaned and free from dust, oil, rust, scale and any other impurity on the surface.

The materials, which need to be Painted/Powder Coated must be cleaned properly, and should be free from oil, rust, scale, dust and any other type of impurity, if any. This entire process is referred by the name of Pretreatment Process. The process consists of up to eight tank system; materials that need to be passed through diverse industrial chemical process and the result should be a crystal clean surface of metal with a protective coat.

The Seven Stages Are As Follows

  • Degreaseing : For removing of oil, dust and any greasy substances. The chemical is basically alkaline and made as 15% Strength in water. The chemical is heated up-to 60 degree. The jobs are then dipped in solution for 5 min and due to Chemical reaction all the dust, oil and greasy substance is removed.
  • Water Rinse : For cleaning and removing the excess detergent. The plain water is in the tank and when the components are dipped, excess detergent is removed and the Components are washed.
  • Derusting : For removing the rust and scale on components. The chemical is basically acidic and a solution of 15% in water is made. The components are dipped for 5-7 min depending on the amount of rust. The components then become virgin and ready for next process.
  • Water Rinse : The excess chemical is washed in the water
  • Phosphating : For giving a adhesive coat on metal. The solution is made of 10% in water. The components are kept in the solution for 5-10 min depending on the Coating required on the jobs. The solution is generally heated up-to 60-70 degree.
  • Water Rinse : For removing excess solution
  • Passivation : For giving a protective coat on the phosphated job. The solution is made of 5% strength. The chemical is heated up-to 60 degree C. The jobs are then dipped in solution for approx 2-3 min and a protective coat comes on the job. After the above process the metal is ready for Painting or Powder Coating.


For Aluminium & Brass Components
The pretreatment process is different for the Aluminium and Brass components, when compared to the process of the MS

The cleaning process for Aluminum and Brass Components includes the following steps

  • Degreasing : To clen the extra oil and grease on the components
  • Water Rinse : To wash out and remove the excess degrees material from the Components
  • Passivation : To make the surface active for the acceptance of Powder


A short cut procedure for the cleaning of MS components is as follows

  • Degrease
  • Water Rinse


Dip in Three in One solution for phosphating and passivation. Then the components are taken, dried and Powder Coated / Painted for casting or making forged components. Generally, they are shot/sand blasted and then powder coated/ painted. However, these components are to be coated within one hour of being shot/sand blasted, as they are prone to catch the moisture from atmosphere and turn yellow.



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