Patio Black Spot Preventer

Product Details

What Is Patio Black Spot Preventer?

Patio Black Spot Preventer is a professional-strength maintenance treatment developed for all stone types.

It helps prevent staining caused by black lichen after your patio has been cleaned with Patio Black Spot Remover. It can also be applied to newly installed patios within six months of installation to help protect against future staining before it becomes established.

In addition to preventing black spot staining, Patio Black Spot Preventer removes green algae staining within 3–5 days of application, helping keep your outdoor surfaces looking their best throughout the year.

Keep Your Patio Looking Cleaner for Longer

Black spot lichen is one of the toughest forms of organic staining found on patios, walkways, driveways, and other outdoor hard surfaces. Preventing lichen from growing is recommended for homeowners who have cleaned their patios with our patio cleaners. Or for those who have just laid brand-new stonework and wish to prevent staining from lichen. New black spots can gradually return as your patio is exposed to the elements.

Patio Black Spot Preventer is specially formulated to help prevent staining caused by black spot lichen while also removing green algae staining. Simply spray it onto the surface and leave it to work - there's no scrubbing or pressure washing required. Applied annually, it helps keep patios, pathways, and outdoor living spaces looking cleaner for longer without changing the natural appearance of your stone.

The result is a cleaner, better-protected outdoor space that's easier to maintain all year round.

What Does the Preventer Do?

Patio Black Spot Preventer helps:

• Prevent staining caused by black spot lichen
• Remove stains caused by green algae in days
• Reduce slippery green organic buildup
• Keep patios, walkways, and driveways looking cleaner for longer
• Protect the appearance of natural stone and concrete pavers

Coverage

Available in 0.66-gallon (2.5-liter) and 1.3-gallon (5-liter) containers.

• 2.5 liters treats up to 540 sq. ft. (50 m²) once diluted.
• 5 liters treats up to 1,075 sq. ft. (100 m²) once diluted.

How to Use Patio Black Spot Preventer

What You'll Need

• A 5–7 liter (1½–2 gallon) pump-up garden sprayer

We recommend wearing old clothes and waterproof boots during application.

Step 1 – Choose the Right Day

Apply Patio Black Spot Preventer on a dry day when no rain is forecast for at least 48 hours.

Step 2 – Prepare the Solution

Dilute the product according to the instructions on the container and pour it into your pump sprayer.

Step 3 – Apply the Product

Spray the surface evenly, ensuring the patio or pathway is thoroughly covered.

Step 4 – Let It Work

Leave the product to work naturally. There's no scrubbing or pressure washing required.

Patio Black Spot Preventer helps prevent new staining caused by black spot lichen while removing green algae staining over the following 3–5 days. No pressure washing is required.

Step 5 – Repeat Annually

For the best long-term protection, reapply Patio Black Spot Preventer every 11–12 months.

How Do I Prevent Stains On My Patio?

To prevent stains on your patio:

• Sweep away leaves and organic debris regularly.
• Remove moss or heavy organic buildup before it becomes established.
• Apply Patio Black Spot Preventer every 11–12 months to help prevent black spot staining and remove green algae.
• Avoid applying sealers, as they will not prevent black spot lichen or algae from developing. They may alter the natural appearance of your stone.

FAQs

Do I need to pressure wash after applying Patio Black Spot Preventer?

No. Patio Black Spot Preventer is a simple spray-and-leave treatment. Just spray it onto the surface and leave it to work. There's no scrubbing or pressure washing required, making it one of the easiest ways to keep your patio looking cleaner for longer.

How often should I apply Patio Black Spot Preventer?

For the best results, apply Patio Black Spot Preventer every 11–12 months to help prevent staining caused by black spot lichen.

Will Patio Black Spot Preventer clean my stone?

No, the Preventer will remove stains caused by algae and prevent staining caused by lichen spots.

Can I use it on a brand-new patio?

Yes. Patio Black Spot Preventer can be applied to new stone within six months of installation to help protect against future staining.

Will it remove existing black spot lichen?

No. Patio Black Spot Preventer is designed to help prevent black spot staining from returning. If your patio already has black spot lichen, we recommend treating it first with Patio Black Spot Remover before applying Patio Black Spot Preventer the following year.

Will it remove green algae?

Yes. Patio Black Spot Preventer removes stains caused by green algae within approximately 3–5 days of application, helping keep your outdoor surfaces cleaner and safer.

Is it safe for pets and plants?

Yes. Patio Black Spot Preventer is safe to use around pets. As a precaution, we recommend you keep pets off the area until the surface has dried. This usually takes around 30 minutes.

Avoid spraying the concentrated product directly onto plants or grass as it would scorch them.

Should I seal my patio after using Patio Black Spot Preventer?

We do not recommend applying a sealer. Sealers will not prevent black spot lichen or algae from developing and may alter the natural appearance of your patio.

Instead, apply Patio Black Spot Preventer annually.