Materials for heavy electrical equipment
We offer a wide range of high performance materials required for heavy electrical equipment such as transformers, insulators, and bushings.
With years of experience and technical expertise, we propose liquid epoxy resins, liquid compound resins, solid epoxy resins, and powder hardeners that pursue reliability and efficiency.
With years of experience and technical expertise, we propose liquid epoxy resins, liquid compound resins, solid epoxy resins, and powder hardeners that pursue reliability and efficiency.
Applicatoin examples of epoxy resin for heavy electric equipment
We provide various insulation solutions for ultra-high voltage transmission and distribution equipment, including switching devices, circuit breakers, and transformers for each substation.

High market share in Japan
Proven track record and reliability over the years
Since the establishment of the joint venture "Nagase Ciba" with CIBA-GEIGY of Switzerland in the 1970s, we have been manufacturing and supplying modified epoxy resins for major domestic heavy electrical manufacturers, continuously maintaining quality and reliability.
Currently, our company holds over 80% of the domestic market share.(According to our internal investigation)
Currently, our company holds over 80% of the domestic market share.(According to our internal investigation)
Modified epoxy technology for heavy electrical equipment offered by our company
- ・High mechanical strength (combination of high Tg and high toughness)
- ・Rapid curing system (APG: Automated Pressure Gel)
- ・High insulation (Pre-filled technology to suppress internal voids)
- ・Reactivity control (Molding process adaptability with long pot life)
- ・Low dielectric constant (Miniaturization of equipment)
- ・Water-repellent and hydrophobic (Outdoor durability)
We are capable of providing solutions for insulation components, ranging from medium- and low- voltage power conversion equipment to large insulation parts for ultra-high voltage GIS (Gas Insulated Switchgear).

Solutions for heavy electrical equipment
Wide range of implementation achievements in heavy electrical insulation components
GIS
Major insulation component used in large gas-insulated switchgear (GIS), which is installed in urban substations and similar locations. It has been widely adopted for GIS spacers


DDT
Due to the absence of fire risk, it has been widely installed in buildings and underground facilities. It has a strong track record of adoption for molded transformers (dry-type distribution transformers) known as DDT.

Bushing
It has been widely adopted for transformers and bushings, which are essential for heavy electrical equipment such as transformers

Outdoor
There is a strong track record of adoption for reclosers, which are distribution switchgear devices that protect infrastructure by interrupting power to critical points during distribution line faults. Especially in outdoor installations, they achieve both insulation performance and durability.
