Tar oils

Tar oils (CAS 8002-29-7), also marketed as naphthalene oils, are complex hydrocarbon fractions derived from coal tar distillation. They function primarily as process solvents and plasticizing agents across heavy industrial manufacturing sectors.

In rubber compounding, these oils act as processing aids and softeners that improve the workability of natural and synthetic rubber stocks during mixing and calendering. This ensures better consistency during the manufacturing process.

Coatings and sealant formulators incorporate them as carrier solvents in bituminous and protective coatings applied to infrastructure, pipelines, and roofing systems. They provide essential durability for long-term industrial protection.

The printing and packaging industry uses these fractions as solvent components in certain ink systems where high-boiling aromatic solvents are required. This application is critical for specialized high-speed printing environments.

In construction-grade adhesives and sealants, they contribute to tack development and substrate penetration in heavy-duty bonding applications. This allows for superior adhesion on difficult industrial surfaces and materials.

These products are supplied as dark, viscous liquids, with specific distillation cuts available to meet different boiling range requirements. Technical-grade material is the standard commercial form for most buyers.

Supply specifications are typically defined by distillation range, density, and naphthalene content to ensure consistency. Bulk liquid delivery in drums, IBCs, and road tankers is the norm for industrial procurement volumes.