5 common tips for solving issues related to Blistering, Flaking, Chalking and more.

In our over 30 years of experience in building coatings, we have encountered various problems, some of  them easily correctable, others stubborn to address, but with our massive expertise and professionalism, we found ways to make everything perfect and splendid.

we are going to address the five common failures in paints and coatings and tips to address such issues.

 

  1.               Surface imperfections

 Alligatoring: This is one of the major surface imperfections encountered in paint surfaces or sealed surfaces. what then is “Alligatoring”  when the wall surface begins to flake and peel, looking more like the back of an Alligator. This happens  when a topcoat is applied before an undercoat is dry, or when an alky enamel or other hard, rigid coating is applied over a latex primer or another more flexible finish layer. Some oil-based coats will lose elasticity as they age, causing this familiar cracking pattern.

To solve this a complete removal of the initial coating through scraping or the use of heat gun is required  and after that a new re-coat can then be applied.

The second surface imperfection primer is the “Rough surface” a paint application is designed to be made or applied on a smooth wall surface, if your wall is made of brick/cement  as obtainable in some parts of Africa, before the paint is applied an even surface should be achieved through the mechanism of efficient “plastering” otherwise whatever coating done on such surface would meet unprecedented challenges like flaking and falling off, which is known as the caterpillar syndrome in the paint industry.

2.                   Blistering (or bubbling)

One of Our clients who ordered for a repainting of his 60 rooms hostel got  professional advice from us  that has kept the hostel among one of the best in the Area.

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a building that often has moisture on the wall surface or often has issues of leaked water defacing the walls, should not just be painted, first the issue should be taken care of or else no matter the quantity or quality of paints applied on such surface Blistering would always occur, this is as a result moisture present in the recesses of the inter relationship between the paint and the wall causing an interference.

Blistering can also be caused by a localized loss of adhesion and lifting of the paint film from the underlying surface, sometimes when solvent gas expands on sunny façades. Blistering tends to occur in fresh coats of paint.

3.                     Flaking and chalking.

These problems are caused by decomposing paint and are different from efflorescence or mottling, which display white, crusty mineral salt deposits that have leached from mortar, concrete, or masonry surfaces behind the paint. A similar problem known as frosting is often seen on dark paints and coatings; in this case, a white discolored substance appears on the surface, similar to salt staining.

Chalking paint may be washed by rain and cause patterns, or it may wash across other surfaces, an effect called chalk rundown.

4.                      Miscoloring and staining.

Mis coloring can be explained as the stain in actual color of a wall surface, this can occur as a result of nail head penetration on the wall or other factors, this would lead to grey or dark spots on the interior or exterior

5.              Surfactant Leaching

This is where concentrated water soluble  ingredients in latexes seep to the paint surface, often creating a brownish blotchy or shiny appearance.

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