SmartSeal Xtreme Natural Stone Cleaner 5L 2 Pack

Revive your patio with Xtreme Natural Stone Cleaner. This two-pack tackles lichens, algae, and fungal growth, leaving your flagstone, natural stone, or block paved surfaces looking their best. Its powerful formula, a superior alternative to Sodium Hypochlorite, uses four active ingredients to inhibit regrowth. For best results, keep the surface wet for 60 minutes after application. Six litres cleans approximately 40m², scrub heavily soiled areas or reapply as needed. Always wear appropriate safety gear. Rinse thoroughly with a hose or pressure washer after the dwell time. While one application removes most grime, a second may be necessary for stubborn black and white spot algae.