After painting plywood, the appearance of long, thin cracks can be observed.

Causes Contributing to This Condition:

•  Applying paint to plywood that has not completely dried.
•  Changes in moisture levels in the plywood can cause expansion and contraction, leading to cracks.

Preventative Measures:

•  If the cracks are not extensive, sand them down with sandpaper, clean the surface thoroughly, and allow it to dry before applying a suitable primer for wood.
•  Instead of using plywood with extensive cracking, opt for new plywood.
•  Ensure that new plywood is sanded down and treated with a suitable primer.

The painted surface may exhibit colour changes and a white powdery substance due to weather conditions.

Causes Contributing to This Condition:

•  Applying exterior paint to interior surfaces.
•  Inadequate filling of uneven surfaces.
•  Excessive thinning of the paint.
•  Using substandard products.

Preventative Measures:

•  Clean the white powdery substance using a brush or similar tool.
•  Use a suitable primer.
•  It is important to use high-quality paint and to follow the instructions on the label during application.

The paint layer in areas where a primer has been applied may also be prone to peeling, which is a common issue.

Causes Contributing to This Condition:

•  Using a primer that is not suitable for interior surfaces.
•  Painting before the primer has completely dried.

Preventative Measures:

This condition can be avoided by using a high-quality interior primer and ensuring that the primer is allowed to dry thoroughly according to the instructions on the label before applying paint.

When moisture seeps through the paint layer or during a water leak, salt may appear on the underlying surface, depositing as a white crystalline substance on the exterior.

Causes Contributing to This Condition:

•  Not using an underlying primer on newly constructed walls.
•  Impact from humidity due to high winds or rain.
•  Applying paint before the primer has dried adequately.

Preventative Measures:

•  Apply a covering to minimise the impact of humidity.
•  Clean the areas where crystalline deposits have formed thoroughly before allowing them to dry.
•  Use a high-quality primer that prevents moisture infiltration and supports adhesion.

Exposure to sunlight often causes the colour of paints to fade.

Causes Contributing to This Condition:

•  The application of low-quality paint.
•  Painting without properly preparing the surface.

Preventative Measures:

This condition can be avoided by using high-quality paint and preparing the surface according to the instructions on the label before painting.

It is common to encounter the issue of surface paint peeling off when the substrate is exposed.

Causes Contributing to This Condition:

•  The use of poor-quality paint that does not adhere well to the surface and is not compatible with the application methods of the paint used.
•  Applying acrylic paint over oil-based paint.
•  Not properly preparing the wall surface before applying the paint.
•  Rapid drying of paint due to excessive environmental heat.
•  The natural aging of the paint over time.
•  Failure to account for variations in temperature and humidity.

Preventative Measures:

01.  This condition can be avoided by preparing the surface with a scraper or sandpaper and then repainting.