| abstract |
A coating includes a binder based on natural bitumen or oil industry bitumen. The binder includes, additionally to the base product, a first additive consisting of a hydrocarbon wax which is substantially insoluble at room temperatures in the base bitumen of the binder and whereof the melting point, measured in accordance with the ASTM and D3418 standards, is higher than 85° C. The binder further includes a second additive consisting of a fatty acid ester wax, the wax being of synthetic, plant or fossil plant origin and having a melting point, measured in accordance with the standards, lower than 85° C. The penetration of the base product, measured in accordance with the ASTM D1321 standard, is more than 70 tenths mm and not more than 220 tenths mm. |