p-Chlorobenzotrifluoride
A VOC-exempt solvent with an evaporation rate similar to xylene, widely used to bring industrial coatings under VOC limits.
p-Chlorobenzotrifluoride (4-chlorobenzotrifluoride) is a halogenated aromatic solvent boiling at about 139 °C. It has been exempt from the US EPA VOC definition since 1994.
PCBTF replaces part or all of xylene and toluene in industrial maintenance coatings, epoxies, urethanes, inks and cleaners, allowing formulators to meet VOC limits without changing application behavior much.
It evaporates at a rate close to xylene and is a good solvent for many resins. It contains no reactive hydrogens, so dry grades are compatible with isocyanates. Its higher density and cost compared with xylene affect formulation economics.
PCBTF is flammable and its vapors require ventilation. Some health agencies have raised concerns about its long-term toxicity, so follow the SDS, exposure limits and any state-level restrictions that may apply.
It evaporates similarly but is VOC-exempt under US EPA rules, helping coatings meet VOC limits.
It is exempt federally in the US, but some states and agencies treat it differently or have raised health concerns. Check the rules where the product is sold and used.
