A unique mineral & plant based eco friendly paving treatment. Block Shield protects paved surfaces without altering their natural appearance. Surfaces wanted with Block Shield will never need cleaning* • Use on: (Clean, newly laid surfaces up to 12 months old) patios, paths, gravel, decorative aggregates, block paving, natural stone, porcelain, concrete, granite artificial grass, brickwork, edgings, resin surfaces & tarmac. • Repels dirt & grime - deters algae moss and weeds - helps resist staining. • Safe around children, pets, wildlife, ponds & swimming pools.