Extreme Clean Blackspot Remover 20.0 kg
Why Choose Our Products?
14–15% sodium hypochlorite – stronger than typical patio black spot removers
Breaks down black lichen algae and organic surface stains
Fast results – visible impact in just 5 to 15 minutes
Use neat or dilute 1:3 to 1:6 depending on severity
Trusted by professionals for black spot removal on Indian sandstone concrete flags and block paving
Manufactured in the UK – packaged in UN-approved containers
Free UK mainland next-day delivery
Extreme Clean Blackspot Remover is a concentrated patio black spot cleaner developed for removing stubborn black lichen, algae, and marks that most regular patio cleaners can't touch. With 14–15% sodium hypochlorite, it's over 50% stronger than household bleach, giving you deep cleaning power for even the most neglected driveways and patios.
Simply apply using a watering can or low‑pressure sprayer; within minutes, black spots begin to brown and rinse away, revealing clean, bright paving without the need for aggressive pressure washing. For routine maintenance, dilute up to 6 parts water: 1 part product – even at this strength, it outperforms most standard patio black spot cleaners and lichen removers.
Ideal Uses
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Driveways and patio slabs
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Indian sandstone & limestone paving
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Concrete paths, block paving, and stone walkways
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Brick walls and rende
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Roof tiles (always test first)
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Pool surrounds & external steps
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As a pre-treatment before applying patio sealers
Sizes & Coverage
|
Pack Size |
Routine Clean (1:6) |
Heavy Stain (1:3) |
Neat Treatment |
|
5 L |
≈ 210 m² |
≈ 105 m² |
≈ 30 m² |
|
10 L |
≈ 420 m² |
≈ 210 m² |
≈ 60 m² |
|
20 L |
≈ 840 m² |
≈ 420 m² |
≈ 120 m² |
Coverage varies depending on surface porosity and condition.
| Property | Details |
|---|---|
| Type | Outdoor black spot remover |
| Base | Non-acidic, water-based |
| Use Case | Exterior cleaning |
| Coverage | 4–6 m² per litre |
| Dwell Time | 10–60 minutes |
| Application Method | Watering can, brush, or sprayer |
| Property | Details |
|---|---|
| Surface Compatibility | Stone, concrete, brick, patio, slabs |
| Agitation Required | For stubborn stains |
| Rinse Method | Water hose or pressure washer |
| Odour Level | Low |
| Shelf Life | 12 months (unopened) |
| Sizes Available | 1 L, 5 L, 10 L |
Frequently Asked Questions
Select Variant and Order
Express Delivery Available!
Extreme Clean Blackspot Remover - 20 Litres is backordered and will ship as soon as it is back in stock.
Extreme Clean Blackspot Remover
