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My fireplace is made of white brick, but after 35 years it is looking pretty dingy. I was told to use Zinser 1-2-3 primer on it, but then what type paint would be best over the primer? Our walls surrounding it are gray barn siding panels.
Posted by Elite Deals - Chris M. on 24 October 2013 02:44 PM

Our Answer:

Given your description and the primer recommendation you have received, I am assuming that you are referring to the exterior masonry chimney, rather than the interior of the firebox. The Zinser 123 primer is a water based product that is not designed for high heat applications. The Zinser primer would indeed be a good base to apply to the exterior brick, prior to painting it with a high quality, exterior 100% acrylic paint. One other step that is recommended is to treat the brick for removal of any mold, staining, and efflorescence. All of these conditions are byproducts of moisture interaction with the brick and are very common conditions on chimneys. Any of these conditions can also cause the paint to separate over time. I recommend treating the chimney with a product such as this cleaner: Brick & Mortar Cleaner Once dry, you will have a good clean surface to apply the primer and paint to.

From Section Page: Stove Paint & Fireplace Paint

ID: paint

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