I was told recently that concrete is slightly corrosive.
Should gloves be worn when using concrete or is it fine to handle concrete as long as its not done on a regular basis?
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Cement (the active component of concrete) is a base (an alkali) that can be irritating to skin. It is not very strong and should not be a problem on all but sensitive skin, if the exposure is short or intermittent. It could be very irritating to eyes and nasal passages if there is a lot of exposure.
Gloves are not a bad idea (e.g., disposable nitrile) but concrete pourers and DIYers handle all the time with little ill effect (again, for short exposure).
Please, please wear gloves! Especially if you are a DIYer, and will be working on a project that involves any more than two pounds of cement. I did not listen to the warning, and worked with the wet cement without gloves. We were filling the bottom of a pond that had cracked, and spent about 5 hours across two days working. I didn't notice anything at all while I was working, but as soon as I rinsed off my hands, I found plenty of small puncture wounds and sores that the gravel had eaten into my skin! Even my father, who has carpenter's hands, had the same sores. My advice to anyone working with cement for more than an hour is to wear gloves. Even the cheap disposable kinds really helped my grandfather and brother to avoid the pain and irritation we experienced. Cement also really dries out your skin, so now on top of the sores, I've got cracks and tight skin.
Just wear the gloves!
As you can see from the other answers, there is a range of opinions.
I have observed that some people handle concrete bare-handed without trouble, while others' skin reacts very badly. For example, my neighbor got sores very fast with exposure to concrete while setting fence posts. And I've heard reports that these types of sores heal very slowly.
If you don't want to wear gloves, then try without them, and see how it goes.
Certain activities require more contact with concrete than others. For example, when building a cordwood masonry wall, you typically place concrete by the handful. The literature recommends wearing heavy rubber gloves, and coating your hands with a protective oil beforehand.
Don't forget about your lungs. Breathing concrete dust can be harmful, in ways that you can't immediately detect. Consider a dust mask when mixing, especially indoors.
I made a similar mistake. My injuries aren't as severe as this guy but still similar in nature. I'm not sure if it's the abrasive action of the sand or the caustic affects of cement/lime, but likely a mixture of the two resulting in this mess. I started getting these injuries within 2-3 hours of working with cement/concrete. It's also extremely basic which sucks the oils right out of your skin which on its own has the potential to damage your skin.
Originally from reddit:
I’ve been working with cement and concrete the past 2 days. I was using my bare hands to mix it and while it was irritating after a while my hands were fine. They did get somewhat dried out. My boyfriend was using it to fill in parts of our cellar floor and he received chemical burns on his finger tips and they are oozing. My suggestion if your going to be using concrete or cement even for a few minutes is to wear gloves.