Carbon Fiber Insulation
EXNP-G Carbon Fiber Insulation Board
Rigid needle-punch carbon fiber insulation board with one-side graphite foil coating. The foil surface provides a gas-impermeable barrier, superior thermal reflectivity and ultra-low outgassing for high-vacuum applications.
✓ Export ready
Custom sizes
OEM accepted
Key features
Product overview
EXNP-G — Graphite Foil Coated Carbon Fiber Insulation Board
The EXNP-G grade adds a high-purity flexible graphite foil on one side of the EXNP base board. The foil acts as a thermal radiation shield and low-permeability gas barrier — critical for ultra-high-vacuum and semiconductor-grade furnace applications.
Key Features
- One-side graphite foil coating — low outgassing, high reflectivity
- Superior thermal radiation shielding compared to uncoated boards
- Reduces effective hot-zone heat loss significantly
- High-purity foil (<15 ppm ash) compatible with semiconductor processes
- Custom panel sizes; cylindrical forms available
Applications
- Semiconductor crystal growing furnaces (CZ, FZ, VGF)
- Sputtering target processing furnaces
- Ultra-high-vacuum sintering
- Fiber optics manufacturing furnaces
- Graphite purification furnaces
Technical Specifications
| Property | Unit | Value |
|---|---|---|
| Bulk Density | g/cm³ | 0.14 – 0.20 |
| Thermal Conductivity | W/m·K | 0.1 – 0.2 |
| Surface Treatment | — | One-side graphite foil |
| Ash Content (High Purity) | ppm | < 15 |
| Max Flat Size | mm | 1500 × 1500 × 300 |
Technical specifications
| Bulk Density | 0.14 – 0.20 |
| Flexural Strength | 1.0 – 2.0 |
| Compressive Strength | 6.0 – 9.8 |
| Thermal Conductivity | 0.1 – 0.2 |
| Electrical Resistivity | 3.0 – 4.0 |
| Ash Content (Standard) | < 100 |
| Ash Content (High Purity) | < 15 |
| Max Size (Flat) | 1500 × 1500 × 300 |
| Max Size (Cylinder Die) | Ø1500 × H2500 |
Why Expo Advanced Materials
TOYO TANSO Japan authorised partner — premium isostatic graphite grades with full raw-material traceability
Qualified supplier to ALD Vacuum Technologies — supplying graphite components to vacuum furnace operations globally
Full MTC + dimensional inspection report with every shipment
Custom machined to your DXF, STEP, PDF or IGES drawings within 2–4 weeks
ISO 9001:2015 certified | Export to 16+ countries | 24-hour quote turnaround
