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RMR-86® Instant Mold Stain Remover

  • RMR-86 Mold Stain Remover
  • Removing Mold Stain on Wood
  • Removing Mold Stain in Shower and Tile
  • Removing Mold Stain on Boat and Vinyl

Industries Best Mold Stain Remover

  • Removes mold stains in seconds
  • No scrubbing or sanding needed
  • Works great on almost all surfaces!
Step 1 of 3 easy steps in fighting mold3 easy steps in fighting mold

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Click Here For -RMR-86 PRO Commercial Mold Stain Remover

Watch RMR-86® Remove Mold in Seconds!

We at RMR Solutions believe in getting the job done right the first time. Spray RMR-86® on mold stains or mildew stains and watch your problem disappear before your eyes in seconds. It’s that good. It's our get-the-job-done-right-the-first-time philosophy that has made RMR solutions the fastest growing manufacturer of products for cleaning and stain removal treatments.

RMR-86® was formulated over time by disaster restoration professionals with tens of thousands of hours in the field. We knew there had to be a better way than the old techniques of wire brushing and sanding, or dry ice blasting. We worked with a variety of products in this category over that time, and came to know what did and did not work. Staying true to our get-it-done-right philosophy, we began testing and tweaking our own formulas, ultimately arriving at a solution that literally removes mold stain and mildew stains in seconds and instantly restores wood and other surfaces to a like-new appearance. That solution is RMR-86®. There are simply no faster or stronger stain removers available to consumers. RMR-86® is ideal for wood, decks, railings, concrete, outdoor furniture, drywall, siding, tile and grout, fiberglass, vinyl, counters, tubs, toilets, shower doors and more.

  • Simple and quick instantly removes mold stains and mildew stains
  • Removes mold stains without scrubbing, sanding or wire brushing
  • Works on most surfaces: wood, concrete, drywall, siding, tile and grout, fiberglass, vinyl and more
  • Works great all around your home, it's amazing on boats too
  • Powerful bleach-based formula renews, restores and protects 200-400 sq. ft. per gal. when sprayed according to specification
  • Can be used both indoors and outdoors
  • Restores surfaces prior to repainting

Industries Best Selling Mold Stain Remover

Click Here to Download - RMR-86® User Instruction Download

RMR-86® Mold Stain and Mildew Stain Remover:

CAUTION: Use appropriate precautions when using RMR-86®. Always pre-test surfaces before using our products. This is a commercial-strength mold stain and mildew stain removing compound with a chlorine-like aroma. Please consult the SDS and product label for specific instructions.

STORAGE: Inspect your package carefully to ensure contents were not damaged during shipment. Store RMR-86® in a cool, ground level, dark area away from carpet, upholstery, metal, flooring, etc.; that may be damaged if leakage occurs after the fact. If the container shows any signs of leakage, transfer solution to a clean plastic container that can be sealed properly. Store out of reach of children and animals.

PERSONAL PROTECTIVE EQUIPMENT (PPE): Wearing full PPE is required when handling and applying RMR-86®. The minimum suit requirements are a hooded Tyvek or a chemical Poly Coated suit that is coated with a polyethylene film to protect against splash/spray. (Shieldtech 55 Chemical Protection and Shieldtech 35 Liquid/Particulate Protection coveralls) Other required materials include: latex gloves, and full face respirator with 3M 60923 P100 organic vapor/acid gas cartridge filter (or equivalent).


  • REQUIRED SAFETY PRECAUTIONS: Before starting application, make sure you’re wearing full PPE.
  • FOR ADDED SAFETY: Some areas, especially confined spaces like attics and crawl spaces, require added ventilation. We strongly recommend using a fan with lay-flat ducting to add fresh makeup air to the workplace during application.
  • For best results, use on surfaces with a minimum temperature of 50° F (10° C)
  • Shake the RMR-86® container well before application.
  • Best applied using the RMR Solution’s commercial grade electric power sprayer or 1.5-gallon pump sprayer, or use a sprayer that is rated for corrosive solutions, such as a plastic, garden-style pump sprayers. Avoid using sprayers with metal parts, as they may corrode with use.
  • Spray affected area quickly, using wide sweeping motions, to cover entire area.
  • Wait for a few moments and watch while RMR-86® eliminates the mold stains.
  • If, after a few moments, evidence of the stain still remains, a second application of RMR-86® may be needed.
  • Once the stain has been removed to your satisfaction, we recommend using RMR-141 RTU to kill the mold growth after RMR-86® has been applied. It’s an excellent odor neutralizer & masking agent to remove any leftover odor from RMR-86®.


  • RMR-86® is a ready-to-use product; dilution is NOT required.
  • RMR-86® covers between 200-400 square feet per gallon. This can vary based on the severity of the affected area, as well as how liberally the product is applied.
  • RMR-86® works best when applied to dry surfaces at temperatures around room temperature. Frozen surfaces may be less receptive to the product. RMR-86® may not be able to penetrate the particular building material affected if excess moisture content exists.
  • RMR-86® can be corrosive if applied to the following materials: duct work, copper, metal, mechanicals, nail plates, steel, aluminum, or any materials prone to corrosion.  If RMR-86® is accidently applied to these materials, quickly wash area with soap and water and wipe down with WD-40.
  • Do not apply RMR-86® to fabrics.
  • Always pre-test surfaces before using our products.
  • Always rinse off surface, when only using RMR-86® by itself.


This product has a shelf life of 10 months or more.

Contact RMR Solutions, LLC at 866-822-8744


On average a 32 oz bottle covers about 60 square feet and a 1 gallon covers about 200-400 square feet. This can vary based on the severity of the affected area, as well as how liberally the product is applied.


Unfortunately, RMR Solutions is unable to state that this product actually kills mold due to not having an EPA registration number. We have been told from numerous contractors from their proven tests, that this product did in fact kill the mold spores.


Mold can certainly grow back after using any type of mold product out there. The key to keeping mold from growing back is making sure you correct the issue in which mold is able to grow. Keep in mind if there is humidity relatively above 50% or any kind of moisture on a substrate, mold can grow. Use RMR-86® to remove those ugly stains and make sure you fix the moisture problem to prevent mold from fully coming back.


A direct spray is required for the RMR-86® to work properly. Using a trigger sprayer on the bottle for small jobs, or a pump-up sprayer or an electric sprayer for larger jobs. Using on a rag is also acceptable in some cases. Make sure you shake product vigorously prior to applying as well.


Yes, but some work areas like outdoors are already well ventilated, so skin and eye protection are mainly needed. We still always recommend wearing full PPE when applying RMR-86®. This includes a hooded tyvek or a chemical poly coated suit, full face respirator with P100 organic vapor and acid gas cartridge filter and latex gloves.


RMR-86® is Sodium hypochlorite-based, which can be hazardous without proper equipment and precautions. In addition, mold stain cleanup environments are already hazardous, and precautions should always be taken.

For more questions please visit out F.A.Q. - CLICK HERE

Biodegradable Yes Product Dispenser Type Plastic Bottle
Combustible no Product Form Liquid
Concentrated no Removes mold and mildew no
Flammable no Returnable 90-Day
Helps Remove Blood,Mildew,Mold,Odor Rinse required No
Indoor/Outdoor Indoor/Outdoor Safe For Use On Bare Floor,Concrete,Painted Surfaces,Stone,Wood
Odorless No Types of Surfaces Cleaned Multi-Purpose
Paint Product Type Mold and Mildew Product Where to Use Bathroom,Floors,Kitchen,Outdoor,Specialty
Prevents/blocks mold and mildew no

Product Size (oz.)

  • 32 oz with Sprayer
  • 1 Gallon
  • 2.5 Gallon


  • 5x Stronger Than Other Contractor Brands
  • Instantly Removes Mold Stains
  • No rinsing or wiping required
  • Tackles The Toughest Mold Stains
  • Ready to use – no mixing required 

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