Asphalt is a black, viscous material derived from crude oil (petroleum asphalt) or coal tar (coal tar pitch), widely used in asphalt paint for waterproofing and corrosion protection.
Key Differences
Source:
Petroleum asphalt: Refined from crude oil, low toxicity, ideal for roads and asphalt paint.
Coal tar pitch: Byproduct of coal processing, contains PAHs, used in industrial asphalt paint for chemical resistance.
Properties:
Petroleum asphalt is weather-resistant; coal tar pitch excels in adhesion for asphalt paint in harsh conditions.
Uses:
Petroleum-based asphalt paint is common for roofs and roads; coal tar variants protect pipelines.
Why Asphalt Paint?
Asphalt paint combines durability with UV protection, ideal for high-traffic surfaces.
