Why Your Paint Keeps Cracking

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If your paint keeps cracking, you may have several reasons for it. Paint has a tendency to crack if it is applied on a poorly prepared surface or if it is lead-based. Other causes of cracking paint include improper preparation, lead paint, and “Alligatoring”. This article will discuss some of the common reasons why paint cracks.

Preparation is important to avoid flaking paint

If you want to paint your exterior walls, you need to prepare your surface well. The paint will not adhere well to a dirty surface. Dirty surfaces have too much grease and oil to support the layers of paint. For concrete surfaces, you can use an electric cleaner to remove this dirt. For wooden ceilings, you can use damp cloths or sandpaper to remove stubborn dirt.

Improper application of paint on a poorly prepared surface

Paint cracking is a common occurrence, and the most common cause is improper application of paint on a poorly prepared surface. Paint is also prone to cracking if the surface is too dry or damp. The same goes for plywood, which expands and contracts with humidity levels. Moreover, paint can also crack if it is applied too thickly or on an unprimed surface. In order to prevent cracks, it is advisable to apply paint thinly, allowing enough dry time between coats.

Cracks can be repaired by scraping off loose paint. If this method fails, re-painting can be an option. Otherwise, you can apply a primer to the surface, ensuring a good seal before applying a paint finish.

Lead paint

It is important to be aware of the dangers associated with lead paint, especially if you’re planning on renovating an older home. EPA guidelines suggest that renovation projects should be conducted with care, avoiding the exposure of young children or pregnant women. You should also wear protective equipment such as filtered masks and HEPA filter respirators. In addition, you should wear a disposable coverall and rubber gloves when working with lead-based paint.

The only way to tell if your home contains lead-based paint is to test it. If you have any suspicions, you should call a professional inspector. Lead-based paint is very dangerous when it is cracked or breaks. The paint may be covered with new paint, making it difficult to detect. Therefore, you should check the paint in places like closets, baseboards, behind appliances, and other hidden areas.


Alligatoring is a common paint defect that occurs when the top layer of paint is applied over a partially dry undercoat. It can also occur when an older, oil-based paint was painted over a primer and is now too thick and has cracked. To fix alligatoring, it is necessary to remove the paint, prime the area, and then re-paint it.

Alligatoring is characterized by fine cracking in the paint film. It is often caused by applying a hard coat of paint over a soft one. In some cases, the paint is applied too quickly, which prevents the paint from drying and expanding properly. It is imperative that all previous coats be removed completely and the surface repainted. Leaving ample time between coats prevents alligatoring from occurring.

Moisture exposure

Moisture exposure is a major culprit for peeling paint, and it can ruin the look of your home. When it is exposed to moisture over a prolonged period, paint can develop blisters or cracks. Excess condensation can also contribute to the problem, creating a breeding ground for fungi and mold, both of which can cause serious damage to your home and health.

The best way to prevent peeling paint is to avoid the area where the paint is exposed to excessive moisture. Humidity changes cause paint to peel and crack. This is particularly true for wood surfaces. Even plywood can contract and expand depending on humidity levels. It is also important to prime the surface before painting it to prevent peeling. Additionally, you should make sure that the paint you are applying is of good quality. This is because a poor quality paint will peel quicker than a freshly applied one. Moisture exposure is also one of the most common reasons for paint failure. Poor paint application is another factor, especially when it comes to wood with a flat hard grain.

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