INTRODUCTION

In the world of painting and common defects in painting, excellence is a vital key that needs to be prioritized, the implication of this means that defects and errors that are expected to occur as a result of negligence or other matters are toned down to zero, to be able to avoid these defects, one has to have a healthy knowledge of the defects, the common errors that lead to them and remedies if they were ever to occur. Hence the reason why we titled this section “Common defects in painting and remedies”. This section plans to touch on surface preparation, the Paint manufacturing process, paint application, and many more vital subjects enshrined in the topic.

Defects in Painting

When the paint is applied, a number of common defects in the painting appear. If not applied following the right procedure, which includes, for instance, poor surface preparation, a poorly prepared surface has the potential to ruin paint application and is the number one sponsor of common defects in painting.

Defects from poor surface preparation is more pronounced when the texture is emulsion. Surfaces can have issues ranging from previously applied paint, aged walls, walls containing large amounts of dust and dirt, poorly plastered wall surfaces, and oil or grease on the walls.

Brush marks, This defect is majorly a factor of the painter and his experience in painting. Brush marks manifest as irregular prints of brush patterns on the wall surface that were not intended for decorative purposes.

Defects in Paint film quality

Peculiarly, poor product quality are common defect in painting categorized under the paint manufacturer, this usually happens when the manufacturer tries to cut corners in the hope of making more profit (a reduction in quality for profit) or the manufacturer lacks the basic understanding of the required paint film thickness for efficient delivery.

Dry and clean wall surfaces

This defect falls under the surface preparation defect, but special care needs to be taken to address the issue of a dry and clean wall surface. When the wall surfaces are still wet, probably from cleaning there is absolutely no need to apply paint or begin painting on the surface, allow the surface to dry before painting, a drying time of 24 hours is encouraged. This is done mostly to avoid, the common defects in Painting.

Highlighted Remedies to Painting Defects

For Poorly prepared surfaces, the remedy for common defects in painting that come as a result of poorly prepared surfaces is to employ good practices that help prepare surfaces well before painting, this can help avoid the defects that could result, such as dirt marks that mar new paint coats.

For wall surfaces with previously applied paint coats still on the walls, do not apply a fresh coat over the previous coats. Most often painters advocate or are quick to apply fresh coats over a previous coat, this does not end well often, professionally we advise scrapping this previous coat off, or employing wash-down chemicals to remove the previous coats, This helps the new coat.

Chalking

Chalking is a common defect in painting that manifests as a white powdery appearance on painted walls, it is necessary to understand that not all paint chalk, the progress of chalking, affects both the paint, causing the color fade. The major causes of Chalking range from, long-term exposure to a painted wall to moisture and sunlight, (note that for long-term exposures to sunlight, to result in Chalking, The Paint product must have been produced with paste colorants). A second cause of Chalking is low-quality paint, This has already been established early on, that the main cause of these common defects in painting, is low-quality paint and it has the potential to manifest in different ways, Chalking inclusive.

Blistering

Blistering is a second paint defect that shows up as little pockets of air on the wall. This is as a result of water vapor trapped under the wall surfaces during painting, which creates bubbles under the film of paint. the major causes of Blistering are as listed, painting damp surfaces, damp basements, moisture under the paint film, very large paint bubbles, and chemical Paint reaction.