Blistering paint is identified by small to medium sized bubbles or blisters under the paint film and is most common on wood siding and trim.
📎Potential Causes:
📌Painting in direct sunlight on a hot substrate (surface being painted) which traps solvent vapor as the paint dries too quickly.
📌Painting when the wood is damp causing trapped moisture to expand the paint film.
📌Dew, rain or very high humidity after latex paint has dried if the latex paint is of lower quality or the substrate surface preparation was inadequate.
📌House moisture escaping through the walls due to improper house ventilation.
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