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I need to tuckpoint mortar on some old bricks before I prime and paint them. I heard that cement products (concrete, mortar etc) need to "cure" for several weeks before coating. How long should it cure before painting?

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  • "several weeks" sounds good.
    – FreeMan
    Commented Sep 22, 2021 at 12:39

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My stucco guy says 1-2 weeks, depending on weather. (Warm and dry is faster.)

If you have a chance, get a concrete-specific primer.

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  • I use gray Zinsser
    – amphibient
    Commented Sep 22, 2021 at 16:18

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