Change the Color of Fireplace Mortar

Discover how to change the color of your fireplace mortar.  Find out how mortar on a stone fireplace can be stained or painted to change its color.

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mortar stains to lighten mortar

We've used a product called Instant Mortar Match to change the color of the mortar on our chimney. It is a dye, so the color absorbs into the mortar and changes the color. They have a white color which could be put on the mortar first to offset the black coloring and then after that put the color on that you want the mortar to be. Hopefully I am making sense. If you call the company, they should be able to tell you if it will work for your situation.