Central Glass’s products have been used as basic materials in many fields since we started our founding business in soda products. Fluorine compounds continue to be developed to meet the needs of our age, and their main raw material, an inorganic industrial chemical called hydrofluoric acid has become a vital product for the advance of industry. It is also the basis of various newly developed compound products at Central Glass. The CELEFIN series (a coverall term for Central Glass’ HFO products) are a line of next-generation products born from the fusion of chlorination, fluorination, and mass-production technologies we have nurtured since our founding. In particular, they are both considerate of the global environment and help people to live in comfort.

  • HFO-1233zd(E)

    Central Glass is a world leader in the development of commercial production technology for next generation fluorine-based blowing agents that have low-GWP (global-warming potential). These environmentally friendly products achieve low-GWP (GWP = 1) without depleting the ozone layer.

  • CELEFIN 1233Z

    This is a next-generation fluorine-based solvent that achieves both excellent environmental performance (ODP≈0, GWP <1) and high cleaning performance. It is expected to provide an ideal alternative for HCFC-225 as well as chlorinated, brominated and hydrocarbon solvents.


    Using our fluorine technology, Central Glass supplies Earth-friendly cover gas "ZEM-SCREEN" (HFO-1234ze(E)) for the magnesium alloy manufacturing industry. They have low GWP and other environmentally-friendly features.

  • HFC-245fa

    HFC-245fa is a CFC substitute that does not destroy the ozone layer. It is used as a blowing agent for rigid polyurethane foam insulation.

  • Hydrofluoric acid(anhydrous/diluted products)

    Drawing on the unique properties of fluorine, fluorine compounds find wide use in daily life. Hydrofluoric acid is used as a precursor for these fluorine compounds.

  • Polyaluminum chloride

    Clean water is an essential element of daily life. Polyaluminum chloride(PAC) and aluminum sulfate make use of agglutinative properties in the treatment of water for municipal water supplies, sewage wastewater, and industrial wastewater to adsorb(flocculate) and precipitate the fine particles and suspended solids in the processing of suspensions.

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