Laminates, Boards & Films
Epoxy Prepreg Glass Fiber Netting
Open-mesh epoxy prepreg netting, Class F/H, for coil reinforcement
Fiberglass mesh braided into a reticulation structure from fiberglass yarn and coated with epoxy resin, then baked. Used as reinforcement insulation in cast-resin dry-type transformers and reactors.
Class F/H0.5–2.4 mmBreakdown ≥18 kV
- Temperature class
- Class F/H
- Thickness
- 0.5–2.4 mm
- Resin content
- 12–18%
- Width
- ≤1000 mm
Request a quotation or a sample. Tell us thickness, width, temperature class, quantity and delivery form. We reply within one business day.
Technical data
| Property | Unit | Value |
|---|---|---|
| Material | — | Fiberglass netting + epoxy resin |
| Normal thickness | mm | 0.5 / 0.6 / 0.8 / 1.0 / 1.2 / 1.6 / 2.0 / 2.2 / 2.4 |
| Normal length | mm | 100 / 50 / 40 |
| Width | mm | 0.2–1.2 m band / ≤1000 |
| Resin content | % | 12–18 |
| Tensile strength | N/mm | 800 / 1000 / 1500 / 2400 / 3400 / 4200 / 4800 / 5300 |
| Mesh size (warp × weft) | mm | 5 × 4 / 6 × 5 / 10 × 7 |
| Weight | g/m² | 180 / 230 / 360 / 620 / 680 / 760 / 800 / 880 |
| Breakdown voltage | kV | ≥18 |
| Insulation resistance | Ω | ≥1×10¹³ |
| Compression strength | MPa | ≥20 |
| Bending strength | MPa | ≥80 |
| Strength of interpose electric | kV/mm | ≥9 |
| Temperature class | — | Class F / H |
Values are typical values or ranges from our product data. Bulk supply is subject to the approved specification, sample and test report. If a parameter you need is not listed here, ask our engineers for the full test report for that grade.
Key features
- Open mesh aids resin penetration and improves coil crack resistance.
- Prepreg epoxy cures into an integrated structure with the coil.
- Supplied in rolls with slitting and custom widths.
Applications
Coil reinforcement insulation in cast-resin dry-type transformers and reactors; HV insulation structures.
Dry-Type TransformersReactors
Why it fits
Open mesh lets the casting resin through while the cured netting holds the coil together and resists cracking.
Ordering information
To receive a quotation, please confirm:
- Product and grade
- Thickness and width (and roll or sheet size)
- Temperature class
- Quantity and delivery form (roll / sheet / die-cut / machined)
- Destination port and required delivery date
For machined parts, attach a drawing in PDF, DWG or STEP format. Datasheets, COAs and batch test data are available on request.
Related materials
Often specified together
Send your specification
Our export team reviews the application, the process and the existing specification before recommending a construction.