Epoxy Cast Components
Epoxy cast bushings, insulators, RYB spouts, and VCB interrupter housings. Cast against your drawing or the part being replaced, not picked from a fixed catalog.
Voltage class
Up to 36 kV
Process
APG cast
Epoxy cast components range
A complete range of epoxy cast components
BushingsBushingsEpoxy resin bushings for transformer and switchgear terminations, cast to the creepage and clearance your rating class requires.View 
InsulatorsInsulatorsSupport and post insulators in hydrophobic epoxy resin, engineered for indoor HT/LT switchgear and busbar systems.View RYB SpoutsRYB SpoutsPhase-identified cable spouts and terminations for switchgear cable boxes, cast to your panel's interface dimensions.View 
VCB Interrupter HousingVCB Interrupter HousingEpoxy interrupter pole housings for vacuum circuit breakers, cast to the OEM profile for a fit-for-purpose replacement.View Overview
Precision casting for critical electrical systems
INDULF manufactures epoxy cast components for medium- and low-voltage electrical infrastructure, producing precision-insulated parts for switchgear, transformers, and power distribution equipment. Our product range includes epoxy bushings, post insulators, RYB spouts, VCB interrupter housings, support insulators, and custom insulation components, manufactured to meet the dimensional, mechanical, and electrical requirements of each application.
Using Automatic Pressure Gelation (APG) casting, components are produced from high-performance hydrophobic epoxy resin to achieve excellent dielectric strength, dimensional accuracy, and long-term resistance to tracking, moisture, and environmental ageing. Metal inserts are accurately positioned during casting to ensure reliable alignment and secure fitment with terminals, flanges, conductors, and breaker assemblies.
Beyond standard products, INDULF develops custom epoxy cast components from customer drawings, samples, or reverse-engineered parts. In-house tooling and mold development allow us to manufacture non-standard geometries, replacement parts, and low-volume production runs without relying on external tooling suppliers, reducing lead times while maintaining consistent quality.
Every component is manufactured under controlled processes and verified against relevant IS and IEC standards, ensuring dependable insulation performance, mechanical integrity, and compatibility with modern electrical systems.
Technical capability
Voltage class
Up to 36 kV
Resin system
Hydrophobic cast epoxy
Casting process
APG, void-free and tracking-resistant
Design basis
Your drawing, or the part being replaced
Why INDULF
Engineered for precision. Built for reliable performance.
Every epoxy component is engineered around its electrical, mechanical and environmental requirements, with controlled tooling, casting and inspection from design through final product.
- 01
ENGINEERED TO SPECIFICATION
Each component is developed around the required dimensions, interfaces, insulation requirements and operating conditions — not a generic mould or standard profile.
- 02
CONTROLLED EPOXY CASTING
Controlled casting processes ensure consistent resin filling, insulation quality and dimensional accuracy across production.
- 03
IN-HOUSE TOOLING & DEVELOPMENT
Tooling, mould modification and reverse engineering are handled in-house, enabling replacement and non-standard components without relying on legacy tooling.
- 04
QUALITY YOU CAN VERIFY
Defined inspection and testing processes verify dimensions, finish and critical electrical requirements before the component is approved for dispatch.
Applications
Where our epoxy components are deployed
SWITCHGEAR & PANEL SYSTEMS
Epoxy components for indoor switchgear, panels, terminations, bushings and conductor interfaces.
UTILITY & DISCOM NETWORKS
Components used across distribution substations, feeder panels and medium-voltage utility equipment.
INDUSTRIAL POWER SYSTEMS
Insulators, bushings and cast components for factory, process, plant and captive-power installations.
RETROFIT & REPLACEMENT
Reverse-engineered components for obsolete, failed or discontinued parts where an exact replacement is required.
Explore More from INDULF
Next step
Send us your requirement
From a drawing or a sample of the part being replaced to a cast, tested component at your site.
01
Share spec or sample
Send a drawing, spec sheet, or a photo of the part being replaced, whatever documents the fitment.
02
Get options & quote
We come back with configuration options, indicative pricing, and a realistic lead time.
03
Delivery with test documents
Dispatch with routine test certificates and export documentation where applicable.