Patio Magic! Concentrate: Ideal for Patios, Paths and Driveways (Kills Algae and
Patio Magic! Concentrate: Ideal for Patios, Paths and Driveways. Treats up to 85 m2. Also suitable for indoor use and as a pre-paint fungicidal wash. It is biodegradable and children and pets need not be excluded from treated areas once dry.