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Don from Canyon Lake, Tx writes

Is it okay to spray Demon WP on Limestone blocks skirting around your house?

Does it break down the material of the Limestone block


Demon WP should not damage limestone or any rock or other surface. Demon WP does leave a visible white residue on darker surfaces, but that should not leave any permanent stain. We recommend testing a small area first if you are concerned about this residue.

Answer last updated on: 11/07/2017

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Demon WP Insecticide

Demon WP Insecticide

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