If your part sits next to a battery, the flame rating usually comes from an additive. MPPE does not need one: modified polyphenylene ether is halogen-free UL 94 V-0 on its own, with a glass transition above 130°C and a dielectric constant low enough for antenna housings. It is also one of the most expensive materials we mold (tied with EPEBA). Pick it when the rating and the heat are non-negotiable.
Current material data (confirm against the selected grade before ordering)
| Property | Current value |
|---|---|
| Molded density | 100–285 kg/m³ |
| Compression stress at 10% | 1100–5000 kPa |
| Long-term service temperature | 105 °C |
| Short-term dimensional stability temperature | 130 °C |
| Cold-use boundary | −80 °C |
| Thermal conductivity | 0.035–0.05 W/(m·K) |
| Rebound | 20–35% |
| Hardness | 88–97 Asker-C |
| Property | Value |
|---|---|
| Molded density | 100–285 kg/m³ · 285 (3.5×) / 200 (5×) / 143 (7×) / 100 (10×) |
| Flame rating | UL 94 V-0 — the first bead foam worldwide to hold it, non-halogen formulation |
| Heat resistance | Tg above 130°C; HDT ≈90°C (under load, not a service limit) |
| Heat stability | 7× sample at 100°C for 22 h — volume change under 1% |
| Minimum service temperature | −100°C |
| Compression @10% | 1100–5000 kPa across the density band |
| Thermal conductivity | 0.035–0.05 W/(m·K) — high-grade insulation class |
| Electrical | Excellent insulation, very low dielectric constant |
| Tensile / elongation / tear / compression set / water absorption / hardness | Provided with your enquiry |
Battery-pack carriers and blast-shield insulation
The rating and the heat come from the material, not a coating.
5G base-station antenna housings
A low dielectric constant keeps the radio pattern clean.
Composite core for prepreg and RTM
Designed for processes that hold above 100°C.
Why we can run it
Very high melt point and high process pressure. DBM molds these.