China Asphalt Pigment factory Product Feature Bitumen pigments have good abrasion resistance, excellent light resistance, high-temperature resistance, alkali resistance, etc. Precautions for using asphalt coatings on pavement 1. In order to improve the bonding force of the iron oxide interface and reduce the penetration of rainwater into the pavement structure, the base layer should be cleaned before paving. 2. Before mixing, clean the mixing tank, asphalt conveying pipeline, transport truck, construction machinery and equipment of the mixing station.