Hejian Maosheng Sealing Materials Co., Ltd. is a direct manufacturer of insulating rubber mat for switch rooms in Hejian City, Hebei, China, produced strictly to GB/T 12706 and DL/T 853 national standards. Our insulating mats use natural or EPDM rubber as the base material with excellent electrical insulation and mechanical strength, and the surface can be smooth, fine rib, wide rib, studded, leaf pattern or laminated, supplied on a long-term basis to power plants, substations, switch rooms, EV repair bays and electrical laboratories. As a Hebei insulating mat factory we cover all voltage classes from 5 kV to 35 kV, with third-party dielectric strength test reports.
Specifications
| Voltage Class | Recommended Thickness | Width | Length | Colour |
|---|---|---|---|---|
| 5 kV | 3 mm | 1 m (0.6 / 0.8 / 1.2 / 1.5 / 2 m available) | 5 m / 10 m per roll | Black / Red / Green |
| 10 kV | 5 mm | 1 m (0.6 / 0.8 / 1.2 / 1.5 / 2 m available) | 5 m / 10 m per roll | Black / Red / Green |
| 15 kV | 6 mm | 1 m (customizable) | 5 m / 10 m per roll | Black / Red / Green |
| 25 kV | 8 mm | 1 m (customizable) | 5 m / 10 m per roll | Black / Red / Green |
| 30 kV | 10 mm | 1 m (customizable) | 5 m / 10 m per roll | Black / Red / Green |
| 35 kV | 12 mm | 1 m (customizable) | 5 m / 10 m per roll | Black / Red / Green |
Technical Data (Reference)
- Shore Hardness: 65 ± 5 A
- Tensile Strength: ≥ 5.0 MPa
- Elongation: ≥ 250%
- Specific Gravity: 1.6 – 1.8 g/cm³
- Dielectric Strength: ≥ 30 kV (tested)
- Standard: DL/T 853, GB/T 12706
Application Cases
- Switch Room / Substation Flooring：Insulating protection for operating personnel, meeting safety regulations.
- Power Plant Step-Up Stations：Insulating laying for 35 kV high voltage areas.
- EV Repair Bays：Electric shock protection during high voltage battery repair.
- Electrical Laboratories / HV Test Benches：Insulating lining for work benches.
- Metro / High-Speed Rail Traction Substations：Insulation protection in high voltage equipment areas.
Our Advantages
- Hejian direct factory covering all voltage classes from 5 to 35 kV, with 3 / 5 / 6 / 8 / 10 / 12 mm thicknesses in stock.
- Cut to any width (0.6-2 m), cut to length, with smooth, ribbed, studded or laminated surfaces.
- Complete third-party dielectric test reports, stock sizes shipped the same day.
- Can be printed with WORK HERE and HIGH VOLTAGE markings and numbers to meet site management rules.
- 13% VAT invoices available, monthly settlement for long-term partners.
Need an insulating mat specification sheet or selection advice? Send us the voltage class, covered area and surface pattern and we will reply within 24 hours.
