High-Dielectric 2432 Varnished Fiberglass Cloth for Oil Circuit Breaker as Electrical Insulation Cloth Glass Fiber Cloth
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Product Highlights
- Made of premium alkali-free E-glass cloth and soaked with high-grade alkyd insulating varnish.
- Multiple optional thickness from 0.08 mm to 0.25 mm to meet different-size winding requirements.
- Excellent warp tensile strength above 100 N per 15 mm, resistant to tearing during coil wrapping.
- Class B long-term working temperature up to 130 degree celsius for motor continuous-running.
- Stable dielectric strength reaches minimum 50 kV per mm for reliable electrical insulation.
- Good oil-proof and moisture-proof performance to adapt harsh workshop operating environment.
- Custom slitting service for narrow tapes between 10 mm and 100 m.
- Goods comply with JB T 8148.1-1999 industry standard, stable batch-to-batch quality.
Product Attributes
- Customization
- Available
- Certification
- ISO
- Application
- Motor
- Model NO.
- 2432
- Surface Treatment
- Varnish Impregnated with Alkyd Insulating Varnish
- Weave Type
- Plain Woven
- Fiberglass Type
- E-Glass
- Alkali Content
- Zero Alkali Content
- Standards
- IEC 60085 and IEC 60243
- Insulation Temperature Class
- Class B
- Long-Term Operating Temperature
- 130 Degree Celsius
- Custom Slit Width
- 10 mm to 100 mm
- Impregnating Varnish
- Alkyd Varnish
- Tensile Strength Warp Direction
- Minimum 100 N Per 15 mm
- Dielectric Strength
- Minimum 50 Kv Per mm
- Transport Package
- Cartons and Wooden Pallets
- Specification
- Width1000 mm to 1400 mm
- Trademark
- Zhonghao
- Origin
- Xuchang, Henan, China
- HS Code
- 70194000
- Package Size
- 125.00cm * 18.00cm * 18.00cm
- Package Gross Weight
- 15.000kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of High-Dielectric 2432 Varnished Fiberglass Cloth for Oil Circuit Breaker as Electrical Insulation Cloth Glass Fiber Cloth
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Product Description





Product Information Sheet | |||
1 | Product Name | 2432 Alkyd Varnished Glass Cloth | |
2 | Model Number | 2432 | |
3 | Base Material | Alkali-free E-glass electrical cloth | |
4 | Impregnating Varnish | Alkyd Varnish | |
5 | Insulation Class | Class B | |
6 | Max Continuous Operating Temp | 130 degree celsius | |
7 | Color | Yellow-brown / Amber | |
8 | Standard Width | 1000 mm to 1400 mm | |
9 | Custom Slit Width | 10 mm to 100 mm | |
10 | Available Thickness | 0.08 / 0.10 / 0.12 / 0.15 / 0.20 / 0.25 mm | |
11 | Roll Length | 50 m / 100 m / 200-300 m per roll | |
12 | Place of Origin | Xuchang,Henan, China | |





2.Boasts outstanding flexibility, with its varnish coating free from cracks after repeated bending and winding
3.Delivers steady dielectric strength and qualified electrical insulation performance under damp surroundings
4.Features great bonding performance between alkyd paint film and alkali-free glass-fiber fabric base material
5.Decent resistance against moisture, transformer-oil immersion and common-ageing damage
6.Satisfactory warp and weft tensile strength to endure coil-wrapping operation
7.Available for further machining including slitting into narrow tapes, die-cutting and winding packaging

2.Flexible insulating material used for reactors, common electromagnetic coils and small-sized transformers
3.Insulation gaskets and wrapping liners for household-use electric appliances and instrument parts
4.Spacer insulation for medium-and-low-voltage electrical equipment, starters and inductive components
5.Winding insulation for pump motors, fan motors and other ordinary industrial electric machinery
Product Specifications Sheet | |||
Technical Specifications | Unit | 2432 Test Value (0.15 mm specimen) | |
1 | Tensile Strength (Warp) | N/15 mm | Minimum 100 |
2 | Breakdown Voltage (at 23 degree celsius) | kV | Minimum 8.0 |
3 | Dielectric Strength | kV per mm | Minimum 50 |
4 | Flexibility | Not specified | No crack |
5 | Heat Resistance | degree celsius | 130 |
6 | Weave Type | Not specified | Plain weave |
7 | Alkali Content | Not specified | Zero alkali (E-glass) |
8 | Surface Treatment | Varnish impregnated with alkyd insulating varnish | |
In addition:Oil resistance, moisture resistance, and mildew resistance—all exhibit good performance. | |||





About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASI269526". Items marked "" are certified.
Company Profile
Xuchang Zhonghao Insulation Materials Co., Ltd. Professional Insulation Materials Manufacturer Since 2011
Chinabased manufacturer focusing on R&D, production and export of highperformance electrical insulation materials, widely applied in motors, transformers, newenergy equipment and rail transit industries.
Main products: 6520 Polyester Film Insulation Fish Paper, 6630 DMD insulation paper, Diamond Dotted Paper, Electrical Crepe Paper Tube, Electrical Pressboard, Cable Paper, NMN/NHN composite foil, Varnished Fiberglass Cloth, insulating varnish, fiberglass tape, polyester & polyimide film, custombuilt insulation parts.
Custom sizes available Strict quality control & international certifications Onestop service: Technical support & global logistics arrangement Flexible trade terms: FOB / DDP and other Incoterms, multilanguage documentation provided
We serve global customers with consistent reliable quality. Feel free to send us your inquiry!
Address: No. 2988 South Ring Road, Xuchang Economic and Technological Development Zone, Henan, P. R. China
Keywords: Insulation Materials, DMD Insulation Paper, NMN Composite Foil, Insulating Varnish, Insulation Tape, Polyester Film, Cable Paper, Electrical Crepe Paper Tube, Polyimide Film, Custom Insulation Products, China Insulation Manufacturer
We supply our insulation materials to over 30 countries across the globe and have built long-term partnerships with numerous world-renowned transformer manufacturers.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- No. 2988, South Ring Road, Economic & Technological Development Zone, Xuchang, Henan, China
-
Registered Capital
- 3,000,000 RMB
- Terms of Payment
- T/T, LC, Western Union, PayPal
- International Commercial Terms(Incoterms)
- FOB, EXW, CIF, CFR
-
Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays - Nearest Port
- QING DAO, TIAN JIN, BING BO
-
Minimum Order Quantity
- 100 kg
-
Supply Chain Partners
- 6
Our Production Capability & Technical Expertise
- Main Products
- Insulating, Insulating Paper, Insulating Tube, Fiberglass Tape, Electrical Insulating Board, Glass Fiber Unidirectional Tape, Electrical Crepe Paper Tube, Dotted Diamond DDP Paper, Electrical Pressboard, Transformer Accessories
-
Production Machines
- bar cutting machine, cutting machine
-
Inspection Type for Finished Products
- Random inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
Traceability of Raw Materials
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2011-09-22
- Main Markets
- Southeast Asia, Mid East, South America, Africa, Oceania, Eastern Asia
-
Overseas Agent/Branch
- No
Our Certifications, Standards & Industry Recognition
-
Management System Certification
- ISO9001:2015, ISO45001:2018, ISO14001
FAQ
- What base material does 2432 varnished fiberglass cloth adopt
- It takes alkali-free E-glass electrical cloth as the base fabric and is impregnated with alkyd insulating varnish.
- What is the maximum continuous operating temperature
- This insulation material belongs to Class B insulation, and the long-time working temperature is 130 degree celsius.
- Can you cut the large-size cloth into narrow insulating tapes
- Sure. We provide custom slitting service, finished tape width ranges from 10 mm to 100 mm.
- What kinds of electrical equipment is this product applied to
- It serves for coil wrapping, inter-layer insulation of B-class motors, transformers and other electrical apparatus.
- What is the breakdown voltage for 0.15 mm thickness sample
- The minimum breakdown voltage is 8.0 kV under 23 degree celsius environment.
- Is the fiberglass fabric alkali-containing
- Our base E-glass cloth keeps zero alkali content to avoid insulation ageing.
- What kinds of thickness options are available
- Available thickness includes 0.08 mm,0.10 mm,0.12 mm,0.15 mm,0.20 mm and 0.25 mm.
- How do you pack the finished rolls for sea shipment
- Every roll is wrapped by plastic film and then packed into carton boxes, cartons are stacked on wooden pallets.
- Can I get customized specification for bulk purchase
- We accept custom-made width, length and special-size rolls for large-volume clients.
- Does the finished cloth crack when wrapped around small-diameter coils
- Plain-woven E-glass base fabric brings outstanding flexibility, it will not crack under normal winding operation.
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