E962F Low-Odor Air-Dry Insulating Varnish
Product Applications:
E962F is a low-odor, air-drying electrical insulating varnish designed for coil insulation and protective treatment. It is suitable for medium- and large-sized electrical equipment operating in elevated-temperature environments.
E962F can be used for the insulation treatment of large transformers, large generators, new energy vehicle motors, and motor stator coils. It is an appropriate insulating varnish solution for compatible coil assemblies and electrical winding systems that require reliable air-drying insulation protection.
- Description
- Technical Data
- FAQ
Description
Product Features:
· Low-odor self-drying polyester insulating varnish; low odor, low toxicity, benzene-free
· High adhesion between transformer components; effectively reduces electromagnetic vibration and electrical noise of coils; fast curing
· Adjusts the expansion coefficient between metal and insulator with temperature changes, reducing damage to the coil caused by expansion mismatch
· Excellent resistance to both high and low temperatures (-40℃ ~ 180℃); the film retains good flexibility.
· Compliant with EU RoHS and REACH; halogen-free, benzene-free, environmentally friendly
· Excellent flexibility and wettability
Physical Properties：
| Item | E962F | |
| Thermal Class | B, F, H | |
| Properties | Specification | |
| Varnish Properties | Viscosity (25℃, Tu-4 Cup) | 16±5″ |
| Specific Gravity (25℃) | 0.950±0.03 | |
| Non-Volatile Content (105℃/3h, %) | 40±3.0 | |
| Appearance | Varnish Appearance (25℃, Visual) | Brown translucent liquid |
| Film Appearance (25℃, Visual) – Film Color Film Appearance (25℃, Visual) – Film State | Yellow, transparent Smooth | |
| Drying Properties | Surface Drying (110℃, min) | ≤5 |
| Internal Drying (110℃, h) | ≤4 | |
| Surface Dry (25℃) | ≤20 min | |
| Full Cure (25℃) | 7 days | |
| Volume Resistivity | Normal State (Ω·m) | 8.5×1013 |
| After 24h Water Immersion (Ω·m) | 2.2×1013 | |
| Dielectric Strength | Normal State (kV/mm) | 132 |
| After 24h Water Immersion (kV/mm) | 116 | |
| Breakdown Voltage | Twisted Pair (TP) Ф=1.0mm AIW (kV) | 16 |
| Film Thickness (mm) | ≥0.05 | |
| Thinner | X-86 series, X-12 series | |
| Shelf Life (at 40℃) | 6 months | |
Precautions:
· Determine the dilution ratio, baking temperature, and baking time experimentally based on product shape, size, and specific requirements. Recommended baking temperature: do not exceed 100°C.
· The product may absorb moisture and turn whitish under high humidity; performance remains unaffected after baking.
· This product is flammable; keep away from fire and heat sources.
Packaging, Storage/Transport & Shelf Life：
· Packaging: metal pails, 18 KG/pail
· Storage & transport: flammable chemical — keep away from fire and heat; handle per regulations; store cool (RT), dark and dry.
· Shelf life: stored sealed, 6 months at 5-25℃.
Frequently Asked Questions
What is the minimum order quantity (MOQ) for E962F?
The standard MOQ for E962F is 18 kg (one pail). For trial quantities below the standard MOQ, please contact us for sample availability and a customized quotation.
What packaging is available?
E962F is supplied in the following standard packaging:
- 18 kg per pail
Please contact us for bulk-order pricing, export packaging, or customized packaging requirements.
Can I request a sample before placing a bulk order?
Yes. Free samples are available for quality evaluation and application testing. Please contact us to confirm sample availability and quantity. The customer is responsible for shipping costs and related delivery charges.
What is E962F used for?
E962F is a low-odor, air-drying electrical insulating varnish designed for coil insulation and protective treatment. It is suitable for medium- and large-sized electrical equipment operating in elevated-temperature environments.
What electrical equipment can E962F be used for?
E962F can be used for the insulation treatment of large transformers, large generators, new energy vehicle motors, motor stator coils, and other compatible coil assemblies and electrical winding systems.
Is E962F suitable for coil insulation applications?
Yes. E962F is designed for coil insulation and protective treatment. It is suitable for compatible electrical coils, stator windings, transformer coils, generator windings, and other electrical components that require an air-drying insulating varnish.
Does E962F require baking?
E962F is an air-drying insulating varnish designed to dry under appropriate ambient conditions. The actual drying time and whether supplemental heating is required should be confirmed according to the product Technical Data Sheet (TDS), coating thickness, component size, and production conditions.
What are the recommended coating and drying parameters?
Recommended viscosity, coating method, dipping time, draining time, ambient drying conditions, drying time, and any supplemental heating conditions should be confirmed based on your actual process. Please refer to the Technical Data Sheet (TDS) or contact our technical team for verified application guidance.
Is E962F suitable for high-temperature equipment?
E962F is suitable for the coil treatment of medium- and large-sized electrical equipment operating in elevated-temperature environments. Please confirm the required thermal class and operating temperature of your insulation system before mass production.
Is E962F compatible with different insulation materials?
E962F is designed for electrical insulation applications. However, compatibility testing is recommended before mass production, especially with magnet wire enamel, insulation paper, tapes, bobbins, sleeves, adhesives, plastics, and other materials used in the insulation system.
What is the shelf life of E962F?
E962F has a shelf life of 6 months from the manufacturing date when stored unopened under recommended conditions. Please check the product label or contact us for batch-specific information.
How should E962F be stored?
Store E962F in its original, unopened packaging in a cool, dry, and well-ventilated area. Keep the pail tightly sealed when not in use and follow the storage and handling instructions provided in the Technical Data Sheet (TDS) or Safety Data Sheet (SDS).
Does E962F meet environmental compliance requirements?
E962F complies with applicable RoHS, REACH, and halogen-free requirements. Technical and compliance documents, including TDS, SDS, COA, and available declarations, can be provided upon request.
Do you provide technical support?
Yes. Our technical team can assist with varnish selection, coating-process evaluation, drying-process optimization, material compatibility testing, and electrical insulation manufacturing requirements.