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914paul t1_iwjx8pe wrote

Reply to comment by PerspectivePure2169 in Restoring Brick by onthelake81

I have no expertise in masonry. But my instinct is that paint penetrates deep into bricks due to their semi-porous nature. Is that the reason for the permanence?

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PerspectivePure2169 t1_iwjxghu wrote

Yup. It can vary with the texture, but it's probably going to have some kind of halo about it even after blasting if the color varied markedly.

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914paul t1_iwjxyvt wrote

Thanks. Makes sense to me (and I imagine the mortar probably suffers even worse than the bricks).

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