VERNICE HI-THERM BC-359 is a versatile baking varnish. It provides robust secondary insulation for various electrical components. This formulation offers both rapid curing at lower temperatures and ultra-fast curing at elevated temperatures. Consequently, manufacturers can optimize energy consumption or accelerate production cycles. This product ensures enhanced durability and operational efficiency in demanding industrial settings.
General Information of VERNICE HI-THERM BC-359
This advanced baking varnish is engineered for superior performance across diverse electrical systems. It presents as a clear amber liquid, indicating its purity and consistent composition. Its formulation ensures outstanding compatibility with numerous magnet wire coatings. These include Amide-Imide, Polyamide, Polyurethane, Epoxy, and Polyimide types. Furthermore, VERNICE HI-THERM BC-359 maintains excellent stability throughout its application and extended service life. This minimizes degradation and ensures long-term protection. The product supports both atmospheric pressure impregnation and Vacuum Pressure Impregnation (VPI) cycles. This versatility accommodates various manufacturing processes. Users can precisely adjust its viscosity by adding up to 25% of Dolph’s T-200 thinner. This allows for optimal varnish retention and film thickness, tailored to specific magnet wire diameters and application requirements.
Key Features & Technical Benefits
- UL Approved: This product meets stringent UL standards (File OBOR2.E317427 and OBJS2.E317429). This certification ensures compliance, safety, and reliability in critical electrical and electronic applications.
- Exceptional Bonding Strength: VERNICE HI-THERM BC-359 forms strong, durable bonds within impregnated units. This significantly enhances the mechanical and structural integrity of components, preventing delamination.
- Superior Environmental Resistance: It provides excellent abrasion, chemical, and moisture resistance. This robust protection shields components effectively in harsh industrial environments, extending their operational lifespan.
- Optimized Curing Profiles: Achieve fast cures at 120°C (3-4 hours) or ultra-fast cures at 160°C (0.5-1.5 hours). This flexibility allows manufacturers to balance energy savings with increased production throughput efficiently.
- Broad Magnet Wire Compatibility: Its formulation is compatible with a wide range of magnet wire coatings. This includes Polyester Amide-Imide and Polyvinyl Formal-Polyamide, ensuring broad applicability.
Typical Industrial Applications
This formulation is engineered for the following applications:
- Impregnation of Stators and Low to Medium Speed Rotors
- Insulation and Protection of Electrical Transformers and Windings
- Encapsulation of Coils and Generators for enhanced durability
About Prostech
Prostech offers specialty materials (adhesives, tapes, thermal interface materials, insulating materials, sealants, PCB protection materials, …) along with manufacturing solutions. We proudly serve a wide range of industries and are an authorized distributor for leading global manufacturers of industrial materials and equipment. Our product range is designed to deliver customized solutions that address each customer’s unique needs.
With years of experience and a successful project history, we are confident in our ability to provide comprehensive material solutions. These solutions effectively tackle the challenges manufacturers face. To explore our full product catalog, simply click here. Our dedicated team is ready to assist with:
- Provide quotation, sample, TDS/MSDS, and technical consultation
- Testing sample quality and verifying product compatibility in our laboratory
- Customizing material formulas for special applications
- Adapting product sizes, quantities, and packaging to meet specific needs
- Offering expert advice on suitable equipment and automation processes
- Delivering technical training and on-site support for optimal product use
Moreover, Prostech ensures the safe and accurate global delivery of all materials, including “dangerous goods”, in compliance with legal regulations. For personalized technical support or to receive a quotation, please contact us today.
| Property | Value |
| Density (25°C) | 0.845-0.945 g/ml |
| Appearance | Clear amber liquid |
| Viscosity (25°C) | 180-340 cps |
| Solid Content (1.5g, 45min, 150°C) | 39.0-45.0% |
| Curing Time on Copper Strip (110°C) | 30 min |
| Build-up, D.F.T. | 35-50 µm |
| Corrosive Effects on Copper | None |
| Dielectric Strength (25um dry film, 25°C) | > 120 kV/mm |
| Dielectric Strength (25um dry film, 25°C, after 24h water immersion) | > 120 kV/mm |
| Thermal Class (UL 1446) | 180°C (H) |
