High-Performance Composite Materials Components— Manufactured in Maharashtra
ACC Insulations is a leading composite materials components manufacturer based in Nashik, Maharashtra, engineering advanced fiber-reinforced polymer (FRP) systems for critical industrial and electrical applications. Our composite materials combine high-strength glass fiber reinforcement with premium thermosetting resins — delivering mechanical and dielectric properties that far surpass conventional metals and plastics.
In the power generation and distribution sector, our composite insulation materials are deployed in transformers, switchgear assemblies, and generator windings — precisely where high dielectric strength, dimensional stability, and thermal endurance are non-negotiable. Whether you need FR4 epoxy laminates, G11 sheets, phenolic boards, or custom-pultruded sections, we have the engineering expertise and production capacity to fulfill your requirement.
Core Technical Advantages
Stronger than structural steel at a fraction of the weight — reducing equipment load without compromising structural integrity.
Completely non-conductive with dielectric strength up to 30 kV/mm — ideal for high-voltage insulation in transformers and switchgear.
Impervious to rust, oxidation, acids, and alkalis — performs reliably in chemical plants, petroleum refineries, and coastal environments.
Precise dimensional stability across rapid thermal cycles — critical for transformer interleaving and precision spacer applications.
Can be CNC routed, drilled, milled, and laser-cut into complex geometric components as per customer drawings.
Self-extinguishing and arc-resistant grades available — meeting stringent fire safety norms for enclosed electrical equipment.
Types of Composite Materials We Manufacture
We manufacture and supply a comprehensive range of fiber-reinforced composite sheets, laminates, profiles, and custom-machined components to match specific engineering and industrial requirements across India:
FRP Epoxy Laminates
Glass Fiber Reinforced Polymer (GFRP) sheets bonded with epoxy resin. Grades FR4, G10, G11 available for Class F & H transformer insulation.
Most PopularPhenolic Laminated Sheets
Bakelite, CE, and HGW phenolic boards for structural support, switchgear panels, control boards, and low-voltage insulation barriers.
IS 2036 CompliantPultruded Profiles
Continuous glass-fiber composite sections — dog bones, angles, flat bars, and channels — for transformer spacers and structural framing.
Custom SectionsOur Manufacturing Process
Every composite component manufactured at our Nashik facility goes through a rigorous, controlled production process to ensure consistent quality and compliance with international standards like IEC 60893, IS 2036, and NEMA LI-1:
Premium E-glass woven fabric and non-woven mats are sourced and verified for fiber areal weight, tensile strength, and resin compatibility.
Glass fiber reinforcements are precision-impregnated with epoxy or phenolic resin systems in controlled ratios to achieve target resin content (30–45%).
Prepregged plies are stacked, heated, and pressed under high tonnage hydraulic presses at controlled temperatures and pressures for full cure consolidation.
Cured laminates are precision-machined using CNC routers, saws, and drilling machines to produce final dimensions as per customer specifications.
All products undergo dielectric testing, dimensional verification, and visual inspection before dispatch with full material test certificates (MTC).
Industries & Applications
Because of their unmatched combination of electrical, mechanical, and chemical properties, our composite insulation materials are specified and integrated into critical infrastructure across 12+ industries nationwide. From high-voltage power transformers to defence-grade structural components — our laminates meet the most demanding application requirements.
| Application Sectors — Composite Materials by ACC Insulations | |
|---|---|
| Electrical | Power Transformers, Distribution Switchgear, Generators, Electric Motors, Control Panels, Bus Bar Insulation |
| Defence | Military Vehicle Panels, Naval Bulkheads, Radar Enclosures, Air Force Structural Components |
| Railways | Coach Interiors, Traction Equipment Insulation, Rail Track Components, Electrical Equipment Housings |
| Automobile | Instrument Panels, Parcel Trays, Under-Bonnet Applications, EV Battery Insulation Components |
| Foundries | Match Plates, Casting Patterns, Core Boxes |
| Forgings | Pattern Making, Press Tool Guides |
| Textile Machinery | Picking Sticks, Shuttle Components for High-Speed Automatic Looms |
| Telecommunications | Underground Cable Covers, Joint Boxes, Telephone Booth Panels, Cable Ducting |
| Chemical | Corrosion-Resistant Pipelines, Chemical Storage Tanks, Cryogenic Insulation Applications |
| Petroleum | Offshore Platform Components, Non-Corrosive Partitions, Pipeline Insulation |
| Construction | Fire-Resistant Doors, Structural Flooring Panels, Facade Cladding |
| Atomic Energy | Neutron Shielding Applications, Reactor Facility Structural Supports |
Why Choose ACC Insulations for Composite Materials?
As a composite materials components manufacturer in Maharashtra with over three decades of experience, we bring a combination of deep material science knowledge, advanced production infrastructure, and domain expertise in electrical insulation that few suppliers can match.
- In-House Testing Lab: Every batch is tested for dielectric strength, flexural strength, water absorption, and flame resistance before dispatch — ensuring zero-defect supply.
- Custom Fabrication Capability: We machine complex shapes — wedges, angle strips, flanges, T-profiles, and spacer blocks — precisely as per customer-supplied drawings or samples.
- Wide Grade Portfolio: FR4, G10, G11, GPO-3, HGW 2372, HGW 2082, CE, LE phenolic grades — all available in stock or made-to-order.
- IS & IEC Compliance: Our composite materials conform to IS 2036, IEC 60893, and NEMA LI-1 standards, making them suitable for type-tested electrical equipment.
- Fast PAN India Delivery: We supply composite materials to customers across Maharashtra, Gujarat, Rajasthan, Tamil Nadu, Karnataka, and all major industrial hubs in India.
Frequently Asked Questions
We manufacture FRP (Fiber Glass Reinforced Polymer) epoxy composites in grades FR4, G10, and G11; phenolic laminated sheets in grades CE, HGW 2372, and LE; and pultruded structural profiles including dog bones, angles, channels, and flat bars — all from our manufacturing facility in Nashik, Maharashtra.
Yes. Our FRP epoxy laminates offer dielectric strength up to 30 kV/mm, resist thermal aging, and are rated for Class F (155°C) and Class H (180°C) thermal endurance — making them ideal for transformer core insulation, winding spacers, and press board replacements.
Absolutely. Our in-house CNC machining facility handles routed profiles, drilled flanges, cut-to-size sheets, and complex geometric parts based on customer drawings or samples. MOQ is flexible for both prototype and production volumes.
Our composite materials conform to IS 2036, IEC 60893 (Types EP GC, EP GM), and NEMA LI-1 standards. We supply material test certificates (MTC) with every shipment. Flame retardant grades comply with UL-94 V0 requirements.
Engineering Tools Suite
Use our interactive calculators to determine the exact dielectric properties, mechanical grade, and thermal class needed for your composite insulation application. Select the right laminate in minutes.
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