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Is Your Surface Profile Costing You Extra?

In regards to paint, if your surface profile is bigger than the lowest amount recommended, it will definitely cost you!
Did you know that an immoderate profile height can lead to coating failure and early rusting? Also, a missing profile can be harmful to the coating adhesion.
When increasing your surface profile, your paint is going to cost you exponentially more.
An example of this could be:
A 10,000 ft2 area of steel that has a 50 micron profile would need around 80 liters of paint in order to fill the profile up prior to initiating a build of film. This includes a 75% transfer efficiency using an airless spray gun and 79% volume solid.
That is equal to around $1,280 worth of coating if inorganic zinc coating costs $16 per liter. If you use 50% more coating when enlarging the profile to 75 micron, you can tack on an additional $640.

HOW TO SPEND LESS ON PAINT

Before painting, make sure you are taking the measurements of the surface profile and comparing it to the specifications. To measure your surface profile, you can use visual comparators, the Defelsko Surface Profile Gage, or Testex Tape .
You will be able to make sure you aren’t adding any costs that are not needed for the project by measuring the surface profile.
The BlastOne catalog also offers useful Paint Application Tables on pages 448-450 to help you figure out how much Wet Film Thickness is  needed.

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