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Why Does Paint Bubble?

Paint blisters or bubbles occur when the paint film lifts from the underlying surface. The loss of adhesion between the paint film and surface is usually caused by heat, moisture or a combination of both.

Why Does Paint Bubble?

Paint bubbling or blistering occurs when moisture gets between the layers of paint, causing the paint to break away from the underlying surface. This usually happens when the painter fails to properly prepare the surface for painting, or when moisture gets trapped during or soon after the painting process.

If a surface is not properly prepared before paint is applied, moisture can become trapped underneath the newly applied paint. This moisture will cause the paint to come away from the surface, resulting in bubbling or blistering. In order for this not to happen, the surface that is being painted should be scraped and cleaned to remove any oils, rust or dirt that can trap the moisture. If the surface is not properly prepared, bubbling or blistering can occur.

Moisture can also become trapped in the paint if the painter applies several coats too quickly. If the painter does not allow enough time between applied coats of paint, moisture may build up and get trapped underneath the layers of paint, causing the paint to bubble and blister. It is important to follow the manufacturer’s recommended wait times for dries between added coats of paint.

The temperature and humidity in the room can also cause the surface to sweat while the paint is drying. This is a common

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