R-A-D™ Guard Mildew & Algae Cleaner & Preventer
R-A-D™ Guard RTU (Ready-To-Use formula) is a no-rinse cleaner and preventative that is safe and effective for removing and preventing stains caused by mold, mildew, and algae on exterior surfaces and exterior wood or deck stain coatings. R-A-D™ Guard cleans without pressure washing, scrubbing, or rinsing. Contains no bleach, chlorine, acid, sodium hydroxide, or phosphates.
Designed Especially For Exterior Wood and Decks
Keeps cleaning long after application, keeping your wood stains looking better longer. 1-2 years of mildew and algae prevention.
Note: R-A-D™ Guard RTU is not used for prepping wood for wood stain application. The primary goal is to remove mildew or algae stains and prevent mildew and algae stains from returning.
When & Where to use R-A-D™ Guard
R-A-D™ Guard is best used to remove mildew and algae stains that have accumulated over or on top of any exterior surface. The advanced properties of R-A-D™ Guard can also be applied after an application of an exterior wood stain to prevent the growth of mildew or algae for 1-2 years.
Important Note: It takes time for the RAD Guard to work. The key is patience and it can take 1-3 weeks for stains and mildew/algae to disappear. The cleaning time varies based on the amount of rain after applying and the severity and the type of stain being removed.
R-A-D™ Guard ADVANTAGES
- Can Be Applied Over Existing Paints, Stains & Sealers
- Will not harm Existing Paints, Stains, or Sealers
- Use on Exterior Wood and Composite Decking
- Use on Brick Paver Patios and Walkways
- Use on Concrete Driveways, Patios, and Walkways
- Stucco, Vinyl, and Wood Siding
- Asphalt and Tile Roofs
- Eco-Safe and Pet-Friendly Formula
- Removes Stains Caused by Mold and Mildew
- Safe to use on all exterior wood surfaces, not just decks
How R-A-D™ Guard Works:
Step 1: Spray surrounding landscaping with water
Step 2: Pour R-A-D™ Guard into pump sprayer
Step 3: Saturate areas to be applied (Do not let RAD Guard puddle) with R-A-D™ Guard. Surfaces that R-A-D™ Guard is being applied to must be fully dry before application. All paints and stains must be fully dried and cured before the application of R-A-D™ Guard.
Step 4: Once finished applying to all areas of surface, repeat Step 1
Step 5: Step back and let Mother Nature work with R-A-D™ Guard to clean for you
Step 6: R-A-D™ Guard continues to deep clean with substrate penetration
Maintenance: Repeat application every 12-24 months or until new stains appear
Coverage: 200 sq. feet per Gallon.
WARNING: This product can expose you to Ethylene oxide, which is known to the State of California to cause birth defects or other reproductive harm, and Cumene, which is known to the State of California to cause cancer. For more information, go to 
Can RAD Guard also be used on a fiberglass roof such as on my motor home? The vehicle is parked in heavy shade half of the year….There is an opaque plastic skylight.
In theory, yes, it will work, but we have never tested it on this surface type.
The instructions say to “pour into a pump sprayer (5:1 ratio)”. Does it need to be mixed with water?
Only the concentrated version should be watered down:
https://www.restore-a-deck.com/rad-guard-concentrate-1-gallon.html
How long will I need to keep dogs off my deck after using the RAD guard? They do lick their feet frequently. thanks.
Until fully dry.
thanks for the super quick response!!
Is RAD Guard similar to Wet and Forget?
RAD Guard is a commercial-grade mildew cleaner and preventer compared to the wet and forget. It is much more effective and longer lasting. We have more wetting agents that allow for deeper penetration and cleaning. Wet and Forget contains heavy metals, which RAD Guard does not.
We have a wood deck with stainless steel cable railing parts. Will your RAD product harm the stainless steel components or is there no issue using your product around the stainless steel hardware & cable? The wood deck components are showing mold & mildew which is why we are looking for a solution.
It should not be an issue.
This is what we are trying to get rid of on the railings… This was built only a few months ago and we’ve tried cleaning with a bleach solution & vinegar but the mold looking stains reaper a few weeks later….
It might be bleeding out from under the stain as this is not normal.
Our deck railing and covered area are unstained and have mildew. Is this suitable for wood that is not stained? What steps would we take after the mildew disappears to prep it for staining? Thank you.
In your case just use the RAD Cleaner and pressure washing to remove the mildew and then the Brighener after for the prep. The prep removes the mildew. Stain the deck and let fully dry. After you can use the RAD Guard to help prevent eh mildew from returning.
I have mold building up on my painted hardie plank siding. Especially around the windows and trim. Will this be safe to use? I plan on applying with a microfiber scrubber on a long pole since my second story windows aren’t very accessible.
Yes, it will.
Which RAD stripper is best suited for this deck stained in 2016 with this Olympic product?
RAD PaintStrip: https://www.restore-a-deck.com/rad-paintstrip-paint-solid-stain-stripping-gel.html
Which cleaner would be best for general maintenance cleaning after applying stain?
If removing mildew and mold, then use the RAD Guard. If just dirt, use warm water and some dish soap. Out other prep products should only be used if you plan on recoating.
Best mildew and alage cleaner and preventer. Great for keeping your wood stains looking better longer.