A water based sealant to help protect against moss, algae, dirt & staining. Eco-friendly Stone & Paving Protector is a water based product that will help protect any of our porous products. The molecules of Eco-friendly Stone & Paving Protector bond permanently with the grain of the stone/paving, & create an invisible barrier which prevents contaminants from getting into the surface of the product. Once applied you can't tell it's there. It's completely environmentally friendly. Eco-friendly Stone & Paving Protector can be supplied with a hand pressure sprayer, you just fill & apply in a fine mist about 30cms away from the surface, & then repeat before it dries. It's very quick & straightforward. Once it dries, which can be very quick depending on conditions, you can walk on it straight away. The surface will generally remain much cleaner than a non-treated surface, & cleaning can be carried out by a hose spray from waist height when needed. As Eco-friendly Stone & Paving Protector prevents algae growth, you will avoid hours of cleaning stubborn & slippery moss & green growth, which can occur in shaded areas. The coating is permanent & will not wear off unless it's abraded along with the paving itself. Coverage is typically 10-15m 2 with manual pressure spray, but can be as low as 5m 2 for the most porous substrates using manual application.