Product Review: Concrobium Mold Control
This review was a long time coming. Rather than a full review as we were planning, this is going to be more of a “product awareness post”.
Concrobium sent us two bottle sample kit a few months back, but with the wedding in May and the move, we haven’t had time to do a test like we’d been planning.
Last week, though, I made the exciting discovery that there was mold in the office sink. I brought the “MoldControl” to work and was prepared to give it a test only to discover that it’s not intended for sinks but rather more of a preventive solution for walls and surfaces not intended for dampness.
So, a huge thanks to Concrobium for sending the sample our way. I’ll keep my eyes open for an opportunity to give it a test.
Until then, dear readers, learn more on the Concrobium Mold Control website.
Jonathan Wold
MoldBlogger.com
Tags: concrobium, Mold Prevention, moldcontrol, Product Reviews









In doing some research on Concrobium Mold Control, I am finding that it only encapsulates mold, does not kill mold. I was told that when sprayed in a wall, that re-application has to be every 3 months so therefore you would have to tear the wall down to reapply. Also, the product is 0.95% sodium carbonate which is baking soda, and I am assuming the latter is water. Even though the product is EPA registered, it is not EPA approved am I correct. Would appreciate your take on this.
Darlene on July 17th, 2008Hi Darlene – my name is Brad and I am with Siamons International, the manufacturer of Concrobium Mold Control®. I thought it might help if I addressed your questions directly.
Your first question is whether Concrobium Mold Control just “encapsulates” mold, which implies that the solution just “covers” or “traps” the mold. Some antimicrobial solutions are just ‘encapsulants’, but Concrobium Mold Control goes further than encapsulation; as it dries over the moldy surface it forms an antimicrobial shield that actually eliminates the mold and mildew underneath.
Your second question regards the need for re-application. In addition to eliminating mold, Concrobium Mold Control stays on surfaces – in the form of an invisible antimicrobial shield – to prevent mold and mildew growth. As long as that shield is intact, the treated surface retains a protective barrier that will prevent the growth of mold and mildew. Reapplication is only necessary if that barrier is removed or covered with a new surface. So if the surface receives constant dousing with water (e.g. a shower stall), or resurfaced (painted) or becomes very soiled, it is recommended that the Concrobium Mold Control be reapplied. Otherwise reapplication should not be required.
Your third question regards the ingredients of Concrobium Mold Control. You are correct that the solution is 0.95% sodium carbonate, but there are two other ingredients which, combined with the sodium carbonate and the water, result in this unique, patented solution that eliminates and prevents mold. The solution contains no bleach, ammonia or VOCs. Our Material Safety Data Sheet is posted on our web site: http://www.concrobium.com/US/advantage.html.
Your final question asked whether the product is EPA-registered or EPA-approved. The answer is the former: Concrobium Mold Control is EPA-registered, which means that our science has been reviewed by the EPA and that we are allowed to make the claims that the product eliminates and prevents mold. Note that any manufacturer who claims that their product eliminates or prevents mold WITHOUT EPA registration is breaking the law. To the point about EPA “approval”, it is our understanding that the EPA does not “approve” or “endorse” antimicrobial products, so “registration” is the only term that applies in this situation.
I hope these answers help. If you have any more questions or would like to discuss further, please don’t hesitate to call us at 1-866-811-4148 or email us at customerserviceus@concrobium.com.
Brad Elder on July 29th, 2008