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PCBTF (para-Chlorobenzotrifluoride)

  • Aromatic solvents
  • CAS 98-56-6
  • IUPAC: 1-Chloro-4-(trifluoromethyl)benzene

PCBTF (para-Chlorobenzotrifluoride) (CAS 98-56-6) appears in 2 of the 1,812 car-care products CarCareTruth tracks (as of June 2026), 1 of which carry a DANGER signal word on their published Safety Data Sheet. It is listed on California's Proposition 65.

Classified as H317 (skin sensitizer Cat 1) and H351 (suspected carcinogen Cat 2) in GHS SDS formulations. Listed under California Prop 65 for cancer. Not a known respiratory sensitizer; inhalation risk at ambient conditions is low due to modest vapor pressure, but enclosed-space exposure should be avoided. Standard solvent precautions apply: chemical-resistant gloves and eye protection when handling concentrated material.

PCBTF (para-chlorobenzotrifluoride, CAS 98-56-6) is a chlorinated, fluorinated aromatic solvent widely used in automotive coatings, primers, and ceramic coating carriers as a CARB-exempt alternative to traditional VOC solvents. Its EPA CARB exemption reflects negligible photochemical reactivity — it does not contribute to ground-level ozone formation despite being a volatile organic compound by weight.

In ceramic coatings, PCBTF serves as the primary carrier solvent that delivers polyurea silazane and other ceramic actives onto the paint surface, then evaporates during the flash and wipe-off phases. It appears at 30–60% in many professional-grade ceramic formulations.

The health classification profile (H317 skin sensitizer, H351 suspected carcinogen) warrants Prop 65 labeling in California and appropriate PPE during application. The skin sensitization risk is the more practically relevant hazard for detailers: repeated dermal contact with concentrated PCBTF-containing products should be avoided using chemical-resistant nitrile or neoprene gloves.

Health & environment profile

VOC
no
Prop 65 listed
yes
Asthmagen
no
EPA Safer Choice
no
Aquatic toxicity
yes
Biodegradable
no
Bioaccumulative
no
Persistent
no
Ozone depleting
no
Microplastic
no
PFAS
no
Env. score
2/5
Purpose: CARB-exempt carrier solvent used in coatings and ceramic products; fast-evaporating alternative to HAP solvents

Common questions about PCBTF (para-Chlorobenzotrifluoride)

What is PCBTF (para-Chlorobenzotrifluoride) used for in car care?
CARB-exempt carrier solvent used in coatings and ceramic products; fast-evaporating alternative to HAP solvents
Is PCBTF (para-Chlorobenzotrifluoride) a VOC?
No. PCBTF (para-Chlorobenzotrifluoride) is not classified as a volatile organic compound (VOC).
Is PCBTF (para-Chlorobenzotrifluoride) on California's Proposition 65 list?
Yes. PCBTF (para-Chlorobenzotrifluoride) appears on California's Proposition 65 list.

2 products contain this

Related

Health and environment notes translate the manufacturer Safety Data Sheet, the GHS classification, and authoritative regulatory listings (California Prop 65, EPA). Not medical advice. They describe the ingredient itself; whether a hazard applies to a finished product depends on its concentration and how it's used.