Question: What is Causing This Black Mold?

comments (4) November 1st, 2009 in Project Gallery

CTOwner, member

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This summer we put a final coat of Cabot's Semi Transparent oil based stain on our contemporary home in CT. We used the same material during original construction two years ago with no problems.

Six weeks after carefully power washing, allowing to dry in dry conditions the house is exhibiting significant black mold.

In conversation with Valspar and Cabot's they have acknowledged that they reformulated the material with linseed oil and agreed that the new formulation acts as a mold magnet, despite NO CHANGE in labeling. Cabot's and Valspar is not being particularly responsive and based on our experience I would recommend considering other products. Has anyone else had a similar experience?

posted in: Project Gallery, painting, contemporary, paint, mold, cabot semi transparent stain

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Comments (4)

woodduffy writes: Don't use any exterior sealer or stains with linseed oil in it, you are asking for mold!
Posted: 9:10 pm on February 20th

demouser writes: Look at products like Cuprinol or Wolmans.
Posted: 9:51 am on January 4th

jross56922 writes: Nothing really jumps out at me, however my past experience says moisture? Is it possible there is execess moisture on or behind the siding? Facing North can sometimes prevent or cause slow drying time, esp if it is in a wet area. Good luck, keep us posted, ok? jr
Posted: 11:22 pm on November 17th

daisy1963 writes: we have the samae problem; cabot stain on cypress ... have called cabot with no acknowledgement of the issue ...
Posted: 10:44 am on November 7th

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