CX936 Water-Based Epoxy Insulating Varnish
Product Applications:
CX936 Series is a water-based epoxy electrical insulating varnish designed for impregnation insulation and protective coating applications. With low odor, low VOC content, and non-flammable, non-explosive characteristics, it supports safer and more environmentally conscious electrical insulation processing.
The varnish provides excellent substrate anchoring, wetting performance, and anti-rust protection. It forms a smooth and uniform insulating film with good flexibility and strong adhesion, helping support reliable coating coverage on compatible electrical components.
CX936 Series is widely used for the impregnation insulation of motors, transformers, and similar electrical products. It is an effective water-based insulating varnish solution for manufacturers seeking lower-odor, low-VOC insulation treatment for electrical windings and equipment.
- Description
- Technical Data
- FAQ
Description
Product Features:
· Epoxy Waterborne Insulating Varnish
· Low Odor with Low VOC Content
· Non-Flammable and Non-Explosive, Safe and Eco-Friendly
Physical Properties：
| Test Item | Test Condition | Unit | Specification |
| Appearance | Visual | — | Milky white liquid, free of mechanical impurities |
| Viscosity | Tu-4 Cup, 25±1℃ | S | 11-15 |
| Solid Content | 1 g of varnish in an open aluminum box of 45mm×45mm×25mm, 125℃, 1h | % | 20±2 |
| Drying Time (tinplate) | 105℃ | min | Surface dry: 5-10 Full cure: ≤120 |
| Dielectric Strength | Normal state | MV/m | ≥70 |
| Volume Resistivity | Normal state | Ω·m | ≥1×1012 |
| After 2h water immersion | Ω·m | ≥1×1011 |
Application Process：
· Paint preparation: Generally, it is recommended to use the original solution; it can be diluted with water (preferably deionized water) according to product needs. After stirring evenly, it is best to let it stand for 20 minutes before use.
· Preheating: It is best to preheat the workpiece at about 100℃ until fully heated; after the workpiece cools down to 50-60℃, place it into the varnish tank for dipping (this dipping method gives the best results)
· Dipping: Recommended: atmospheric dipping for 5-15 minutes, or vacuum dipping for 3-8 minutes
· Standing: 15-30 minutes
· Baking: 90-95℃: 3-4 hours; 110℃: 2-3 hours
· Optimal step baking: 80-90℃ for 1 hour + 100-120℃ for 2-3 hours
The specific baking time should be determined through experiments according to the shape and size of the workpiece, equipment conditions and curing degree requirements, so as to determine the baking temperature and time suitable for the product.
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 CX936 Series?
The standard MOQ for CX936 Series insulating varnish 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?
CX936 Series insulating varnish 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 CX936 Series used for?
CX936 Series is a water-based epoxy electrical insulating varnish designed for impregnation insulation and protective coating applications. It is widely used for motors, transformers, electrical windings, and other compatible electrical products.
What are the main features of CX936 Series?
CX936 Series features low odor, low VOC content, and non-flammable, non-explosive characteristics. It also provides good substrate anchoring, wetting performance, anti-rust protection, strong adhesion, and good film flexibility.
Is CX936 Series suitable for motor and transformer impregnation?
Yes. CX936 Series is suitable for the impregnation insulation of compatible motors, transformers, coils, windings, and similar electrical components that require an epoxy insulating varnish treatment.
Does CX936 Series provide anti-rust protection?
Yes. CX936 Series offers anti-rust performance and can form a smooth, uniform insulating film on compatible electrical components. Please confirm suitability through testing for your specific substrate and operating environment.
Is CX936 Series a low-VOC insulating varnish?
Yes. CX936 Series is a water-based epoxy insulating varnish with low VOC content and low odor. Please contact us for applicable technical information and compliance documentation for your project.
Does CX936 Series require baking or heat curing?
The drying and curing method for CX936 Series should be confirmed according to the product Technical Data Sheet (TDS) and your actual production process. Please contact our technical team for verified application guidance.
What are the recommended impregnation and curing parameters?
Recommended viscosity, preheating conditions, impregnation method, impregnation time, draining time, drying conditions, curing temperature, and curing time should be confirmed based on your equipment, component structure, and production requirements. Please refer to the Technical Data Sheet (TDS) or contact our technical team for application guidance.
Is CX936 Series compatible with different insulation materials?
CX936 Series 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 metal components used in the insulation system.
What is the shelf life of CX936 Series?
CX936 Series 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 CX936 Series be stored?
Store CX936 Series 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 CX936 meet environmental compliance requirements?
CX936 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, impregnation-process evaluation, drying and curing-process optimization, material compatibility testing, and electrical insulation manufacturing requirements.