10 COMMON DEFECTS FOUND IN PAINT WORK

Commonly found defects in paint work are as follows.

1. blistering

The formation of bubble-like shapes on the painted surface is known as blistering. The primary cause of this defect is water vapor. When water vapor is trapped under a layer of paint, it creates bubbles under the paint film.

paint blistering defect
paint blistering defect

2. bloom

The formation of dull patches on the painted surface is known as bloom. The primary cause of this defect is poor paint quality and improper ventilation.

paint bloom defect
paint bloom defect

3. Fading

When there is a gradual loss of color from the sore surface, it is known as fading. The main cause of this defect is the reaction of sunlight on the pigments of the paint.

paint fading defect
paint fading defect

4. flaking

In this type of defect, some portion of the paint film does not adhere properly to the surface; As a result of which the paint layer falls off. This is due to poor adhesion between the paint and the surface to be painted.

Paint Flaking Defect
Paint Flaking Defect

5. shining

The appearance of shiny patches on the painted surface is known as flashing. The cause of this defect is mainly due to poor workmanship, cheap paint or weather action.

paint glare
paint glare

6. smiling

If the thickness of the final coat of paint becomes too thin, the background can be clearly seen. This is known as a grin. Poor workmanship is the main reason for this defect.


7. running

This type of defect is observed when the surface to be painted is very smooth. In the case of a smooth surface the paint goes back and leaves small areas of the surface exposed.

running paint defect
running paint defect

8. sagging

This type of defect is more prominent when a thick layer of paint is applied to a vertical or inclined surface.

paint sagging defect
paint sagging defect

9. saponification

The formation of soap stains on the painted surface is called saponification. The chemical action of alkali is the cause of this defect.

saponification defect of paint
saponification defect of paint

10. wrinkle

This type of defect is more prominent when a thick layer of paint is applied to a horizontal surface.

wrinkled defect of paint
wrinkled defect of paint



Er. Mukesh Kumar

Photo of author
Er. Mukesh Kumar is Editor in Chief and Co-Funder at ProCivilEngineer.com Civil Engineering Website. Mukesh Kumar is a Bachelor in Civil Engineering From MIT. He has work experience in Highway Construction, Bridge Construction, Railway Steel Girder work, Under box culvert construction, Retaining wall construction. He was a lecturer in a Engineering college for more than 6 years.