Removes algae, green patina & green deposits Also kills red algae found on house walls Prevents recurrence For use on terraces, gravel, brick, driveways, house facades, walkways, roofs and fences For use on all external surfaces such as stone, wood, plastic, glass, concrete, ceramics, paving stones, roof tiles and felt Safe to use on tarmac It is sprayable Ready to use Self-acting, no need to scrub
