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Paint blistering – common problems during use

Firstly, puncture the blister. If water emerges, it indicates that moisture has penetrated under or behind the paint layer. When exposed to the sun, the moisture evaporates into steam, which will cause the paint to form bubbles.

At this point, first use a hot air spray gun to remove the blistered paint and allow the wood to dry naturally. Then apply primer, and finally repaint the entire repair surface. If there is no water in the bubble, it is possible that the wood grain is cracked and there is a small amount of air inside. When exposed to the sun, the air expands and the paint skin bulges.

Faced with this situation, first scrape off the blistered paint, then fill the cracks with resin filler, repaint, or apply microporous paint directly after scraping off the paint without filler.

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