Black Spot Remover - 5L - Black

The Black Spot Remover is an ultra-strong, ready-to-use cleaning solution formulated to eliminate ...

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B&Q - Marco Paul 5 Litre Black Spot Remover For Outdoor Surfaces
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£21.50
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Product Information

Full details

The Black Spot Remover (5L) is a powerful, ready-to-use cleaning solution designed for homeowners and professionals looking to restore outdoor stone, concrete, and brick surfaces. It is ideal for those who want to eliminate stubborn lichen and organic buildup without hours of manual labor, though users should be mindful of its high-strength chemical nature and take necessary safety precautions around vegetation and pets.

All features

ColourBlack
Model Part NumberBLACK5L
BrandUnbranded

Extended Product Information

FAQs

Does this product require mixing with water?

No, the Black Spot Remover is supplied ready-to-use and should not be diluted.

Can I use this on decking?

This product is specifically designed for porous surfaces like stone and brick. It is not recommended for wood or composite decking.

Is it safe for pets?

Keep pets away from the area until the product has been fully rinsed away and the surface is completely dry.

How much area will 5L cover?

Coverage varies based on the porosity of the stone, but a 5L container is typically sufficient for a standard patio or driveway.

Do I need to scrub the surface after applying?

No, the formula is designed to work without manual scrubbing, though a light brush can assist on extremely heavy buildup.

Troubleshooting

Stubborn spots remaining after one application

Heavily stained or long-standing areas may require a second application. Ensure the surface is fully dry before reapplying.

White residue left on the surface after rinsing

This is often caused by incomplete rinsing. Use a high-pressure hose to thoroughly wash the surface again until the water runs clear.

Pros and Cons

Pros

  • Eliminates the need for manual scrubbing
  • Highly effective against persistent lichen and organic buildup
  • Ready to use straight from the container
  • Restores original color and appearance to stone
  • Works on various porous outdoor materials

Cons

  • Requires careful handling due to chemical strength
  • May require extra rinsing to avoid residue
  • Can be harmful to surrounding grass or delicate plants
  • Large 5L container can be heavy to handle for some users

Setup, Compatibility & Care

No complex setup is required. Ensure the target area is clear of debris before application. For best results, use a standard garden sprayer or watering can.

Compatibility: This product is compatible with most masonry, including natural stone, concrete, and clay brick. Always perform a small patch test in an inconspicuous area before full application to ensure colorfastness.

Care: Store the container in a cool, dry place away from direct sunlight. Wear gloves and eye protection during application to prevent skin or eye irritation, and be sure to rinse off any surrounding plants with fresh water to prevent accidental damage.

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