We painted our ‘dutch barn’ style house red last summer. Since then white blotches or stains have appeared in several areas. Some stains are almost ‘chalky’ texture. The stains seem to come and go occasionally. What caused the white stains?
We need more information to give you an informed answer.
On what substrate, i.e. surface, has the paint been applied?
What type coating was applied?
How old and in what condition was the previous coating.
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