Problems and Solutions

Swelling of the paint in different areas and flaking in some areas due to this swelling.
Reasons:

• Using low-quality paint
• Applying paint during times of intense sunlight.
• Moisture from the subfloor
• Exposure of the paint film to rainy weather, dew, humidity, etc., before it has completely dried.

Solution:

• If there's moisture ingress from the inside, this problem must be resolved first. Otherwise, it will be impossible to prevent swelling.
• Blisters should be scraped and sanded.
• Any cracks should be repaired. A time when weather conditions are suitable should be chosen.

There is a difference in matte-glossy finish when the painted surface is wiped.
Reasons:

• Do not use matte paint when glossy paint should be used in crowded environments.
• Frequent washing
• Rubbing against the wall
• Using paint with low abrasion resistance.

Solution:

Use high-quality acrylic-based, washable paint in crowded spaces that require frequent cleaning (schools, cinemas, hospitals, etc.). Choose semi-matte or silky-matte paints rather than matte paints in these spaces. When painted surfaces become dirty, immediately wipe them with a damp cloth, dabbing gently.

The paint cracks towards the top, ending its protective properties.
Reasons:

• Using paint with low adhesion and flexibility properties
• The paint is thinned too much, so the film layer is too thin.
• Incomplete surface preparation, no primer application.
• Embrittlement of synthetic paint that has hardened too much.

Solution:

Remove loose and flaking paint with a scraper or wire brush, sand the surface, and smooth the edges. If flaking has occurred through multiple layers of paint, a filler may be necessary. Prime bare areas before repainting. Using a high-quality primer and topcoat can help prevent the problem from reoccurring.

First, remove any flaking with a wire brush. Sand the surface. Fill if necessary. Prime the bare areas again, and choose a high-adhesion paint as a final coat.

During paint application, air pockets create small bubbles on the surface and these do not disappear.
Reasons:

• Shaking the paint can excessively.
• Using low-quality paint.
• Applying paint too quickly
• Wrong roll selection.
• Over-scanning.
• Applying semi-matte or gloss paint on a rough surface.

Solution:

Don't overmix the paint and avoid using very old paint. Use a short-pile roller when applying semi-matte or gloss paint. The affected surface must be sanded before repainting.

The appearance of intense color or gloss variation at the place where wet and dry layers of paint overlap during application, repeated.

The appearance of a change in color or gloss at the point where dry and wet paint are applied on top of each other or overlapped during application.
Reasons:

• Application error
• Using low-quality paint.

Solution:

First, apply the paint towards the unpainted area and then immediately return to the newly painted area while the surface is still wet (brushing, combing). This type of application provides a smoother and softer finish. This problem is less common with quality paints, as the pigments and binders in a good paint make overlapping areas less noticeable. This problem is more pronounced if the surface is rough and absorbent. Therefore, a primer may be necessary.

Mud-like and deep cracks

Reasons:

• Applying paint too thickly
• Applying a thick layer of paint with low covering properties to cover it.
• Using too much paint on corners and edges.

Solution:

First, remove the paint from the surface by scraping and sanding. Prime and paint with a quality paint. Quality paints have properties that reduce mud cracking.

Corners and edges appear to have different tones.

Reasons:

• Corners and edges are generally painted with a brush. Brushes and rollers have different spreading tendencies. Brushed edges appear darker because they lay down thicker.
• Using different shades of color. Using paints with different charge numbers.

Solution:

Don't brush the entire room's edges and corners before applying with a roller. Apply section by section, working in small sections. Ensure you're using the correct colorant and base mixture. If available, mix the new color with the existing colors.

Swelling of the paint in different areas and flaking in some areas due to this swelling.
Reasons:

• Using low-quality paint
• Applying paint during times of intense sunlight.
• Moisture from the subfloor
• Exposure of the paint film to rainy weather, dew, humidity, etc., before it has completely dried.

Solution:

• If there's moisture ingress from the inside, this problem must be resolved first. Otherwise, it will be impossible to prevent swelling.
• Blisters should be scraped and sanded.
• Any cracks should be repaired. A time when weather conditions are suitable should be chosen.

White chalking seen in the paint film along with discoloration.
Reasons:

• Using paint with a high filler ratio.
• Using poor quality paint.
• Using paint that is not resistant to exterior walls and is more suitable for interior walls.

Solution:

First, remove the chalk from the surface with a brush. Then, clean the surface with water and allow it to dry. Once the chalk is removed, prime the surface with an exterior-grade primer, then paint with a high-quality acrylic or silicone-based paint with exterior durability.

First, there are localized peelings and then the paint completely falls off the surface.
Reasons:

• Using a paint with low adhesion.
• Thinning the paint too much.
• Incomplete surface preparation, especially applying paint directly without applying primer.
• Environmental conditions that may cause the paint to dry too quickly: Too much sun or too windy weather.

Solution:

If localized cracks are present, the cracked areas should first be cleaned with a wire brush. They should be sanded. Unprimed areas should be primed. If the cracks are completely cracked, the paint should be scraped off, sanded, primed, and painted with silicone or acrylic paint.

Dust or mold accumulation on paintwork.
Reasons:

• Use of poor quality paint
• Extreme pollution in the environment where the paint is applied.
• Using too grainy a paint.

Solution:

• Although dirt accumulation cannot be completely prevented, the use of a semi-matte paint on the exterior will reduce dust accumulation compared to matte paints.
• Avoid using grainy paint in areas with high levels of contamination.

Dust or mold accumulation on paintwork.
Reasons:

• Lack of due care in ground preparation.
• Moisture entering through cracks.
• Using sea sand in the mortar on the wall.

Solution:

If moisture is the cause, the moisture must be removed somehow. The roof must be repaired. Any cracks should be filled with cement-based exterior mortar. The interior ventilation system should be reviewed. Dust and other debris should be brushed off, and the surface should be washed and rinsed with water. Then, it should be primed with a high-quality primer and painted with a high-quality silicone paint.

Paint on sunny, south-facing surfaces is generally subject to very little and/or excessive fading. Dust on the coating can also be a cause of discoloration.
More or less extreme fading of paint color, especially on sunny, southern facades

Reasons:

• Using interior paint instead of exterior paint.
• Using low quality paint that may cause chalking.
• Painting with colors that are sensitive to UV rays (usually very vibrant reds, blues, and yellows).
• Tinting untintable white paint is a form of pigment overload.

Solution:

Any chalking should be removed. The surface should be repainted in colors that match the exterior. Overly vibrant reds, yellows, and blues should be avoided.

White, salt-like patches on the paint surface. Frosting can occur in any color, but is less noticeable on white paint and light colors.

Reasons:

• Protected areas that cannot be cleaned naturally by rain, dew and moisture may also form.
• It may be due to overfilled primer and paint.

Solution:

The wall should be cleaned with a wire brush and then repainted with a good primer and then paint under suitable weather conditions.