What solvent is typically used for cleaning liquid asphalt hose lines?

The typical solvent used for cleaning liquid asphalt hose lines is naphtha. Naphtha is a petroleum distillate that effectively dissolves and removes the sticky, viscous properties of asphalt, making it suitable for cleaning purposes. Its chemical composition allows it to penetrate and break down the residues left behind in the hose lines, ensuring that the equipment remains clean and functional for future use.

When considering other options, kerosene, while also a petroleum product, may not be as effective as naphtha for this specific application, as it has different solvent properties that might not break down asphalt as efficiently. Diesel, similarly, while it has cleaning properties, is primarily a fuel and may leave residues that can affect subsequent asphalt applications. Alcohol, on the other hand, does not have the same dissolving power for heavy asphalt products and is typically not used in this context, as it may evaporate too quickly to effectively clean. Thus, naphtha stands out as the most suitable choice for this specific application.