WATER-REPELLENT SOIL AND ITS PRODUCTION

PROBLEM TO BE SOLVED: To obtain water-repellent soil having such advantages as to be usable for decoration owing to its gloss, excellent as non-grass soil because of holding no water even after rainfall, suitable for interior decoration, exterior decoration, landscape architecture, graveyard, safety zone, etc., and release no heat even if subjected to excessive sunshine as the case with paved pedestrian walk and concrete sections in summer because of no temperature rise due to the diffused reflection on the surface and no heat conduction toward the lower layers due to sunlight. SOLUTION: This water-repellent soil is obtained by mixing dried sandy soil (2-8 mm in granular size) with a clear coating composition (clear composition) followed by agitation to effect coating the individual granules of the sandy soil with the clear composition; wherein the clear composition comprises 30-50 wt.% of an aqueous alkyd resin (consisting mainly of dehydrated fatty acid), 5-15 wt.% of a silicone water repellent such as a water-based silane, 5-15 wt.% of an aqueous melamine-based crosslinking agent (containing imino group), 2-8 wt.% of water-based paraffin wax, 24-16 wt.% of ethanol/water (weight ratio of 50:50), and the balance of water.