Dreaded Paint Blister

Dreaded Paint Blister

There are a few reasons you may get a blister on a new or newer exterior paint job. One reason is if the paint is applied within the dew point. You have probably heard a weather man mention the dew point and wondered what the heck is that or “why do I care about that”? The dew point is the temperature at which the moisture in the air will condense on a surface. Like moisture on the side of a cold beer glass. If you paint within the dew point the paint can’t adhere to the painted surface because of that moisture so it cures to itself. It’s just hanging there and will eventually form a bubble or bubbles.

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