RMR-86 Mold and Mildew Stain Remover is one of the products I did NOT personally use. Why? It’s bleach based. Bleach does not kill mold and in fact can make the situation worse. Please read my post on Does Bleach Kill Mold for more information.
Having said that, I do want to give you sound information on the RMR-86 product in the event that you have already purchased it and were planning on using it.
What is RMR-86?
RMR-86 Mold and Mildew Stain Remover is not a EPA registered mold killer. The scientifically designed formula of RMR-86 allows it to remove mold stains and mildew stains in 15 seconds with zero scrubbing. Please read that again… remove mold stains, not remove mold.
That’s a problem. You can read why on my Best Products To Remove Mold post. I also talk about it on my Mold Removal page.
Since I did not personally use this product, I read hundreds of reviews and am sharing the pros and cons based on what other’s have said.
Active Ingredients
- Dimethyl Benzyl Ammonium Chloride
- Dimethyl Ethyl Benzyl Ammonium Chloride
- Water
Pros of RMR-86
- No scrubbing
- Dries quickly
- Works on a variety of household surfaces including interior and exterior ones
- Not a huge investment (a gallon size is less than $50)
- Removes mold odors as well as stains (note from Jennifer – RMR BLEACHES mold. That is different than removing mold).
- Suitable for prepping before repainting surfaces
- The most recommended mold removers for boats (again – not a true mold remover)
- Ready to use – no dilution required
Cons of RMR-86
- Not a long-term mold inhibitor
- Not a good idea to tackle a larger mold issue
- Cannot be used in poorly ventilated areas
- You need a lot of preparation beforehand (protective gear, storage solutions, test spots)
- Difficult and dangerous to store
- Short shelf life
Toxic or Non Toxic
Very toxic. Its composition contains sodium hypochlorite to take care of old and stubborn cases of mold.
Do not use the RMR 86 without wearing gloves or safety goggles. You also need a lot of ventilation so open windows and doors if possible. Reviews include things like “the smell makes us want to tear our eyes out” and “we could not return home for 2 days it smelled so bad.” RMR Botanical is available to mask this odor. See a problem yet?
You must wash your face and hands immediately after using the product. Avoid smoking, eating or drinking while using this mold remover.
You’ll also have to store the remainder somewhere safe once you’re done. Be sure to check on it often just in case the bottle leaks. It will eat through surfaces if left untended for too long.
The Final Verdict
I would NOT use RMR-86 for any reason. Simply put, it does not kill, clean, or remove mold and it is highly toxic. The end. But if you really want to purchase it, you can do so here.
Rob E. says
“RMR-86 . . . does not kill, clean, or remove mold and it is highly toxic.”
Jennifer, RMR also has what seems to be a newer product – RMR-141 RTU Mold Killer. Would you consider commenting on its potential strengths and weaknesses?
Very informative website.
Thanks,
Rob E.
Jennifer says
Thanks Rob! Glad you found me. Upon a quick glance at the ingredients I am concerned about it’s potential toxicity. Beyond that, it looks promising. I went ahead and ordered a bottle and will do a full review in the next few weeks.
Rob E. says
Thanks, Jennifer. In the meantime, I’ll continue trying to acquaint myself with your comprehensive material.
Amanda M Shouse says
Hi I am also interested in a review from this product. I am going between the chrobium or however you say it and the 141 because I don’t think it leaves a film that needs to happen in chrobium. I believe I have widespread mold issue into the house I moved into. I have reread my lease and specifically states that I accepted house as is so trying to fix on my own. Very musty smell that was covered by paint smell previously.
Shinsuke Ito says
I used the RMR-86 in my bathroom and it works very well but I didn’t any protective gear while using RMR-86. I am OK now but is there any healthy issue will be appear? My entire apartment smell the product and I have 2 kids. What should I do. I open the all window and doors.
Can I take shower now?
Jennifer says
Air out your apartment as often as possible. Ventilation is key! You will be ok but make sure to at least wear gloves and eye protection next time along with a mask. You are ok to shower now for sure.