MSP – (Mold Stain Preventer)

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MSP – (Mold Stain Preventer)

$49.00 $34.95 Taxes

(3 customer reviews)


MSP's on sale! Order now!  Here's your chance to save big! 

Mold, Mildew, & Algae Stains Are History!

Now that you have the house and outdoor furniture clean and free of nasty mold and mildew, keep it clean with MSP!  MSP is an invisible treatment that works behind the scenes, keeping those nasty mold and mildew stains from reappearing.  MSP forms a covalent bond to the surface to which it's applied and can last for up to 3 years.  MSP also controls odors!

MSP is environmentally-safe, and biodegradable.  Safe around people, plants, and pets, too.

Your satisfaction is guaranteed!

Works great on:

  • home interiors, including wallboard, carpet, wood, etc.
  • home siding of any composition (wood, stucco, fiber-cement, vinyl, etc.)
  • roofing of any composition (shingle, tile, shake, metal, etc.)
  • decking of any composition (wood, composite, pvc, etc.)
  • outdoor furniture of any type (wood, metal, vinyl, upholstered, etc.)
  • outdoor spa covers
  • concrete
  • boats – inside & out.
  • RVs – inside & out. (MSP helps control odors, too.)
  • Canvas or fabric awnings.

Available in one-gallon container.  Can be applied with pump sprayer but for best results use a bug fogger.


Unbelievable Protection Against Mold, Mildew, and Algae Stains.

Have you had mold and mildew in your home, car, office?  In your Garage? On your house? Boat? Elsewhere?  MSP is your answer.


Note: MSP is not a “cleaner”.  MSP will not remove existing discoloration.  Existing mold, stains, dirt, grime, etc. must be removed prior to applying MSP.  However, when applied to a clean surface, MSP will keep ugly stains from reappearing.  Works on fabrics, vinyl coverings, and hard surfaces.  Effective up to 3 years.


We recommend that you use A to Z (bleach-free) or Once & Gone Exterior-Surface Cleaner (contains bleach) to thoroughly clean the surface and remove existing stains prior to applying MSP.   If you use a bleach-based cleaner you must allow the surface to dry for 48 hours.  Otherwise, the bleach could neutralize the MSP.  Now that the surface is clean, you’re ready to treat it.


Thoroughly shake the container prior to use. Using a hand-held sprayer or fogger, mist MSP onto the clean, dry surface. Emphasis should be made on achieving a uniform wet coat across the surface.   Apply heavier to carpet or thick fabric, allowing MSP to treat the entire depth of the material. Allow to dry.  MSP will form a film on glass, so avoid overspray on windows. Otherwise, overspray can be removed with ordinary glass cleaner.


Nothing’s better than enjoying a clean home and outdoor living space.  You’ll appreciate what MSP does to maintain those structures and spaces, month-after-month, year-after-year.  When you’re ready to reapply, consider if you need to wash any surface dirt from the home before reapplying.

Sold in one gallon containers.  

Coverage: 300-1,500 square foot depending on the surface type and application method (fogging vs. spraying greatly increases coverage).  

More Information.

3 reviews for MSP – (Mold Stain Preventer)

  1. Ron W.

    I used this product years ago to keep mold from reappearing on a molded basement bathroom wall. The mold, which was coming back within 3 days of being cleaned, stayed away for over three years after applying this product. Have not used it outdoors, but I’m a believer! Nothing works like this product to keep mold and mildew from returning.

  2. John S.

    This product has done a fantastic job on our wood deck that has had a constant problem with black mold growth. Really keeps it away.

  3. JC

    At the end of the 2016 summer season, I used MSP to treat three of my clients boats before winterizing them. I was very interested to see how MSP would do – especially on one of the boats that is always moldy when I open it up in Spring. I used a fogger and Jeff (owner of Encore) and I did it together. We covered the boats for the winter and waited.

    When I opened the boats this Spring I was amazed that the product had done such a GREAT job. All three of the boats were immaculate – even the one I thought would never stay clean through winter. I will be recommending this product to all of my customers this Fall. Thanks for a great product! It really solves a big problem.

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