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Q. - Is concrete stain toxic for small pets? We are thinking of using it on our concrete in our backyard.
Hello Donna,
A. - It does have a diluted acid in it, the same kind used in swimming pools though much more diluted down. So it is toxic while the stain is in the bottle, during use, and while the project is in process.
However, once you have completed the project, and neutralized and rinsed off the residue, and allowed it to dry, and sealed it, and allowed that to completely dry, it is no longer toxic. So be sure to keep your pets away from the project until it is complete and completely dried.