Monthly Archives: March 2014

Application Failure Series – Paint Surface Cratering

paint failure cratering

Cratering in Paint – Why does it Occur

Painting can often be an underestimated step in securing the longevity of a plant or manufacturing facility.  Its benefits are obvious, but there is room for error during application.  And these errors and imperfections painted are typically much more difficult to remedy after the application has been installed, often leaving the only option to scrape and repaint.  Due to application failure, pepainting can be tedious and frustrating.  However if you are careful from the start, it is possible to avoid waste time and money.

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Application Failure Series – Paint Peeling off Walls

paint peeling application failure

Paint Peeling off Walls – Reasons

No matter how big or small a plant or facility, a solid coat of paint is a necessity. Every plant/maintenance manager wants their building to offer a complete finish, and try their best to maintain the building’s value with a protective coat.  From inside to outside, there are several small and big decisions that go into a facility and its transformation from a mere structure to a processing or manufacturing plant. But imagine the horror when they find paint flaking off the walls? After spending time, energy and money into the vital building, it is very irritating and demotivating to find paint coming off surfaces. Though many people have faced this situation, they are still unsure what went wrong and where did they make a mistake.

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PennCoat, Inc – Adhesion Failure Series – Galvanized Metal

Industrial Painting - Galvanized metal - adhesion failure

Failure to properly prime galvanized metal typically results in peeling.

When received from a production mill, galvanized metal is very alkaline.  Additionally, the metal is also coated in light oil which protects it from the moisture in the air.  Like most metals, galvanized is no exception to the threat of moisture, and can rust.  The rust will appear white, and will need to be removed by washing with water and a detergent, followed by a thorough rinsing.

Galvanized metal requires specific surface preparation.  The oil coating can prevent proper paint adhesion, and will cause peeling and paint failure.  Additionally, peeling may result if an alkyd or oil-based product is applied over a bare galvanized surface.  Galvanized metal uses zinc, and when the alkyd or oil-based paint reacts with the zinc, it creates a soap film, causing separation and application failure.

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PennCoat, Inc. – Elastomeric Coats for Commercial Painting

SONY DSC

Over the decades, the painting industry has witnessed immense development and there has been a radical change in variety of paints available.  Decades ago, there were limited options available for paints and application methods; these methods had to be used even though there were certain limitations and side effects. But, with improved formulas and application methods, coatings are no longer limited to these shortcomings. Options for industrial paint have grown with their industrial application. Use of paints for protective coating against corrosion and rust have become prevalent in past decades. As the painting industry developed, new paint formulas were developed to overcome problems present in building materials and improve features. One of the highly useful kinds of paint developed recently was elastomeric paints.

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