Tile – What kind of mask is required for grouting

groutsafetytile

I finished putting up tiles for a backsplash last night and am getting ready to grout tonight. I looked at the package and saw Contains known or probable carcinogens. Yikes!

What kind of mask should I pick up on my way home? A simple dust mask, or a more elaborate respirator?

Best Answer

Usually that warning applies only in California—most states are not at risk. :-)

The carcinogen involved is cement dust, specifically its components of tri- and dicalcium silicate, alumina, tricalcium aluminate, and iron oxide. The hazard extends to skin, eyes, mouth, and respiration.

enter image description here To be completely protected, a moon suit (made of Tyvek in the photo) is in line with the most pessimistic expectations. However, the practical alternative (and recommended by CDC and OSHA) is any quarter-mask respirator with an N-95, R, or P filter to arrest fine particles, along with gloves, and enclosed eye protection—and avoiding unnecessary cement contact.

Many workers are skeptical of the carcinogenic property of cement dust: it is common to see experienced workers taking only minor precautions. Usually wearing only a mask while handling the powder. Once it is moistened and and dust is no longer a factor, most don't do anything special. But it is a strong caustic alkalai, so do take care not to get it inside or on you for an extended time. enter image description here enter image description here enter image description here

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