Paint problems after painting

Defects in the walls after lighting:

These matters should have been dealt with in the early stages, for example, the lamp must be sanded on until it reaches a good surface

Part of the wall was painted (crosshairs) and a change in color appeared:

The whole part (the grommets) must be completely treated to the end, after which the wall of the defects in it is painted from the two nearest corners, whether it is a matte paint or of glossy degrees.

The occurrence of puterfy in the remaining paint:

A quantity of the product must be left in a tightly sealed plastic bag after stirring the colors and before adding water to it in order to return to it at the appropriate time.

Veneer Formation: A veneer is formed inside the paint can before use.
Reason: improperly storing the paint and not closing the containers tightly.

Flowering: paint flakes and pimples appear on the surface with the appearance of powdery deposits and salts
The reason: the moisture evaporates from the concrete and, as it exits, picks dissolvable salts from the upper surface, leaving them on the paint surface.

Pimples: small or large bubbles on the surface of the paint.
The reason: the retention of the solvent or a paint coating on the oil, moisture or salts.

Paint spacing: The paint layer is spaced apart, forming lines that show the paint layer or the surface under it.
The reason: the paint is over to dust, dirt, grease or silicone.

Orange Peel: Paint peel in the shape of orange peel after spraying.
The reason: a thick paint coating without diluting or evaporating the solvent at a higher speed or using an inappropriate roller.

Reproduction: it is an increase in the flow of paint.
The reason: a significant increase in the paint coating, near the spray gun, or increased paint dilution

Change of color: Change the final color to light or faded color.
The reason: UV rays affected, or the use of non-resistant paint to change color.