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Can you paint after sandblasting?



Sand blasting is an efficient method for removing old paint and rust from a metal object for painting. Sandblasting is performed on virtually any metal object creates a smooth surface due to the abrasive qualities of the sand. After sandblasting, the metal object must be thoroughly cleaned to remove all traces of dirt and grease that will interfere with the paint.

Beginning with blasting, the surface of the part is cleaned through abrasion. The etching and scratching in the surface prepare the surface so that the paint bonds and sticks with it. Without this step, paint chips more easily. Sand blasting strips the oxidation off of the steel. Leaving it exposed and not properly finished in the wrong environment will cause rust so quickly. The part is allowed to dry in a safe atmosphere for the next step.



After pretreatment, a zinc-based primer and the powder are electrically applied with an electrostatic gun. The electrostatic gun adds in the even distribution and speed. This also has the double benefit of preventing over-spraying.

The Advantages of Sandblasting and Painting:-

The main benefits of the former are durability and longevity. Blast and paint do more than provide a pretty paint job. It is  more cost-effective and  protection against environmental hazards that simple  paint does not:



  • Corrosion: At only 3 mils, a single coat has similar corrosion protection to that of 3 coats of paint and it is applied at the exact same thickness. Whereas wet paint is generally used for indoor applications, powder-coated parts have excellent weather ability to paint after the sandblasting.
  • Economical: As a solid product, wasted spray can be improved and reused. Overspray is less likely and the transfer efficiency of blast and paint is between 60 and 70 percent (compare the much lower 30 to 35 percent transfer rate of wet paint).
  • Production Benefits: Blast and paint get parts ready to go faster than wet paint. As soon as a chassis is cooled it is ready to be handled. There is less downtime as powder coating lines require less oversight.
  • Chemical Resistance: when seen the damage done. With blast and paint, chemical resistance will be finished. Just wipe up the mess and the paint is left completed.

Leading Manufacturer & Supplier of Portable sand blasting machine

Comments

  1. manish15 January 2020 at 02:14

    Great to see blogs like this . As we are Manufacturers, Suppliers, Exporter of various machine like Shot Blasting Machine Manufacturers, portable shot blasting machine price, Sand blasting machine for sale, mini grit sandblasting machine, tumblast, small hanger type machine.

    ReplyDelete
  2. Sand blasting machine23 June 2020 at 22:10


    Nice Blog!!!
    Here we are manufacturer of sand blasting machine in india. for more details contact us. we are also Manufacturers of shot blasting machine & grit blasting machine

    ReplyDelete
  3. Rahul Sharma1 December 2020 at 02:22

    Nice Post,

    Thanks a lot for sharing the great piece of the content with us. The point you mention in your post sandblasting paint that are very useful for me.

    We are Manufacturer, Exporter, Supplier of Sand Blasting Machines, Abrasive Sandblasting Machine, Small Grit Sand Blasting Machine Manufacturer, and Shot Blasting Machines. I understand the way of the attractive to the customer with the products.

    Keep it works and share with us your latest information. For more Information or any help then visit now at Sand Blasting Machine

    Thanks again for the post.

    Regards,
    Rahul Sharma.

    ReplyDelete

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