CX936-5 Modified Water-Based Epoxy Insulating Varnish
Product Applications:
CX936-5 is a modified 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 wetting performance and strong adhesion, helping it coat compatible electrical components evenly. It forms a smooth, flexible insulating film with high bonding strength for reliable insulation treatment.
CX936-5 is widely used for the impregnation insulation of motors, various transformers, and electronic components. It is especially suitable for high-frequency transformers and other electrical applications that require strong bonding performance and water-based epoxy insulation protection.
- Description
- Technical Data
- FAQ
Description
Product Features:
· Modified Water-Based Epoxy 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 |
| Specific Gravity | 20℃ | 1.030±0.03 | |
| Solid Content | 1 g of varnish in an open aluminum box of 45mm×45mm×25mm, 125℃, 1h | % | 25±3 |
| Drying Time (tinplate) | 105℃ | min | Surface dry: 5-10 Full cure: ≤120 |
| Dielectric Strength | Normal state | MV/m | ≥60 |
| Bond Strength (helical coil method, normal state) | ≥70 N | ||
| Volume Resistivity | Normal state | Ω·m | ≥1×1012 |
| After 2h water immersion | Ω·m | ≥1×1010 | |
| Humidity test (50℃±2℃, RH90%, after 48h) – Electric strength retention rate | ≥80% | ||
| Temperature Class | Class B | ||
| Operating Temperature | -45 to 130℃ | ||
Application Method：
· Paint preparation: Recommended ratio: CX936-5 : deionized water = 1 : 0.5-1
· The customer should dilute according to the size, shape and performance requirements of the workpiece; deionized water may be added as needed during use. 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 CX936-5?
The standard MOQ for CX936-5 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?
CX936-5 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 CX936-5 used for?
CX936-5 is a modified water-based epoxy electrical insulating varnish designed for impregnation insulation and protective coating applications. It is widely used for motors, various transformers, electronic components, and other compatible electrical products.
Is CX936-5 suitable for high-frequency transformers?
Yes. CX936-5 is especially suitable for high-frequency transformer insulation applications. Its excellent wetting performance and strong bonding properties support reliable coating and impregnation of compatible high-frequency transformer components.
What are the main features of CX936-5?
CX936-5 features low odor, low VOC content, and non-flammable, non-explosive characteristics. It also provides excellent wetting performance, strong adhesion, good film flexibility, and high bonding strength after application.
Is CX936-5 suitable for motor and transformer impregnation?
Yes. CX936-5 is suitable for the impregnation insulation of compatible motors, transformer coils, high-frequency transformers, electronic components, and other electrical winding systems.
Does CX936-5 provide strong adhesion?
Yes. CX936-5 offers excellent wetting and adhesion properties. It forms a smooth and flexible insulating film with strong bonding strength on compatible electrical components.
Does CX936-5 require baking or heat curing?
The drying and curing method for CX936-5 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 CX936-5 compatible with different insulation materials?
CX936-5 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, ferrite cores, and other materials used in the insulation system.
What is the shelf life of CX936-5?
CX936-5 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 CX936-5 be stored?
Store CX936-5 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 CX936-5 meet environmental compliance requirements?
CX936-5 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 high-frequency transformer insulation manufacturing requirements.