In high-performance electrical equipment, insulation is not just a protective layer—it is a critical reliability factor. When operating temperatures rise, vibration increases, and service life expectations grow longer, the insulation system must perform consistently without cracking, delamination, or electrical failure.
Cenvar FGV-H2 – Class H Flexible Varnish is specifically developed to meet these demanding conditions, offering excellent thermal endurance, strong bonding, and reliable flexibility for modern electrical and power applications.
Engineered for Class H (180°C) Performance
Cenvar FGV-H2 is a high heat-resistant insulating varnish designed for Thermal Class H (180°C) applications. Its formulation—based on polyesterimide with epoxy modification—ensures a balanced combination of thermal stability, adhesion, and flexibility, even under continuous high-temperature operation.
Unlike rigid varnishes that may crack under thermal cycling, Cenvar FGV-H2 maintains insulation integrity by accommodating expansion and contraction during operation.
Key Technical Advantages of Cenvar FGV-H2
Cenvar FGV-H2 offers several performance benefits that make it a preferred choice for OEMs and manufacturers:
- Thermal Class H (180°C) insulation capability
- Excellent adhesion and bond strength
- Good flexibility, reducing risk of cracking
- Low viscosity with high penetration, ensuring deep impregnation
- High dielectric strength, supporting electrical safety and reliability
- Single-component system, no mixing required
These characteristics make it ideal for applications where both mechanical durability and electrical insulation are critical.
Designed for Fibre Glass Covered Conductors
Cenvar FGV-H2 is specially formulated for impregnating fibre glass covered conductors, including:
- Fibre glass covered wires
- Sleeves, tapes, and braided conductors
- Electrical coils and windings requiring Class H insulation
Its high penetration ensures uniform coating, while the cured film provides strong bonding without compromising flexibility.
Application Flexibility for Manufacturing Processes
Cenvar FGV-H2 can be easily applied using dipping or impregnation methods, making it suitable for both batch and continuous production lines.
Typical curing guidelines:
- Batch impregnation: 140°C to 160°C for approximately 1 hour
- Continuous on-line impregnation: Higher temperatures (300°C–400°C) for shorter curing cycles, depending on line speed and component size
This flexibility allows manufacturers to integrate Cenvar FGV-H2 smoothly into existing processes.
Consistency, Stability, and Storage Reliability
For OEMs, consistency is just as important as performance. Cenvar FGV-H2 offers:
- High solids content, supporting efficient coating
- Good storage stability (up to 6 months) when stored below 30°C
- Controlled viscosity using recommended thinners
This ensures predictable processing behavior and reliable results across production batches.
Supporting OEMs Beyond the Product
At Cenvar | Chetak Manufacturing Co., we understand that insulation varnish selection impacts:
- Equipment reliability and service life
- Production efficiency
- Warranty performance in the field
That’s why we don’t just supply varnish—we support OEMs with:
- Technical guidance on application and curing
- Assistance in selecting the right varnish grade
- Consistent quality and dependable supply
A Reliable Choice for High-Temperature Electrical Systems
As electrical equipment continues to operate at higher efficiencies and temperatures, the need for Class H flexible insulating solutions becomes increasingly important. Cenvar FGV-H2 is engineered to meet these challenges while offering manufacturers confidence in long-term insulation performance.
If you are an OEM, motor manufacturer, transformer manufacturer, or electrical component producer looking for a dependable Class H flexible varnish, Cenvar FGV-H2 is a proven solution.
👉 Get in touch with Cenvar today to discuss your application requirements, request technical details, or evaluate samples.