Ultra Thin IXPE Foam
Ultra Thin IXPE uses the same electron-beam cross-linked polyethylene chemistry as our standard IXPE, processed down to film gauges. At these thicknesses the foam behaves as a soft, conformable membrane that stays waterproof, moisture-proof, and shock absorbing while die-cutting cleanly into precise shapes. It resists ageing and chemical corrosion, takes adhesives cleanly, and is widely used as the carrier layer inside foam tapes and as a thin gasket between display, battery, and PCB assemblies.
Technical Specifications
| Base polymer | Irradiated Cross linked Polyethylene Foam |
| Density | 25 to 200 kg/m³ |
| Foaming ratio (Times) | 5 to 35 |
| Foam thickness | 0.8 to 3 mm |
| Width | Maximum 1500 mm |
| Thermal conductivity | 0.033 W/m·K |
| Working temperature | -40 °C to +120 °C |
Ultra Thin IXPE Foam Technical Parameters by Foaming Ratio
| Test Item | 5× | 8× | 10× | 15× | 20× | 25× | 30× | 35× |
|---|---|---|---|---|---|---|---|---|
| Density (kg/m³) | 200 ± 30 | 125 ± 15 | 100 ± 10 | 66.7 ± 8 | 50 ± 6 | 40 ± 4 | 33.3 ± 3 | 28.6 ± 2 |
| Shore hardness < 3 mm Thick | 60–70 | 50–60 | 45–50 | 35–45 | 30–35 | 25–30 | 18–25 | 13–18 |
| Shore hardness < 3 mm Thin | 55–65 | 45–55 | 35–45 | 25–35 | 20–25 | 20–25 | 15–20 | 15–20 |
| Tensile strength TD (MPa) | ≥1.3 | ≥0.9 | ≥0.7 | ≥0.5 | ≥0.4 | ≥0.3 | ≥0.2 | ≥0.15 |
| Tensile strength MD (MPa) | ≥1.5 | ≥1.0 | ≥0.8 | ≥0.6 | ≥0.5 | ≥0.4 | ≥0.25 | ≥0.2 |
| Elongation TD (%) | ≥200 | ≥150 | ≥130 | ≥130 | ≥130 | ≥110 | ≥110 | ≥100 |
| Elongation MD (%) | ≤220 | ≥170 | ≥150 | ≥150 | ≥150 | ≥120 | ≥120 | ≥110 |
| Tearing strength TD (kN/m) | ≥9 | ≥8 | ≥6 | ≥4 | ≥2.5 | ≥2 | ≥1.5 | ≥1.3 |
| Tearing strength MD (kN/m) | ≥9 | ≥8 | ≥6 | ≥4 | ≥2.5 | ≥2 | ≥1.2 | ≥1.2 |
| Compressed distortions @ 23°C ±2°C, 22h (%) | ≤2 | ≤3 | ≤5 | ≤7 | ≤8 | ≤9 | ≤10 | ≤11 |
| Dimension change TD @ 70°C ±2°C, 22h (%) | ≤-4 | ≤-4 | ≤-4 | ≤-4 | ≤-6 | ≤-6 | ≤-6 | ≤-6 |
| Dimension change MD @ 70°C ±2°C, 22h (%) | ≤-6 | ≤-6 | ≤-6 | ≤-6 | ≤-8 | ≤-8 | ≤-8 | ≤-8 |
| Water absorption @ 23°C ±2°C, 24h (g/cm²) | ≤0.02 | ≤0.02 | ≤0.03 | ≤0.03 | ≤0.04 | ≤0.04 | ≤0.05 | ≤0.05 |
| Thermal conductivity (W/m·K) | ≤0.095 | ≤0.084 | ≤0.073 | ≤0.065 | ≤0.055 | ≤0.049 | ≤0.040 | ≤0.033 |
TD: Transverse direction. MD: Machine direction. Shore hardness band depends on sheet thickness (above and below 3 mm).
Applications
Common questions about Ultra Thin IXPE Foam
How thin is ultra thin IXPE foam?
0.8 to 3 mm, at densities from 25 to 200 kg/m3 and foaming ratios of 5 to 35. Maximum width is 1500 mm.
What is it typically used for?
Applications where a conventional foam is simply too thick to fit: adhesive tape carriers, thin gaskets, display and electronics cushioning, automotive trim, and laminating onto fabric or film where the foam must add cushioning without adding bulk.
Can it be laminated or die-cut?
Yes. The fine, uniform closed-cell structure from electron-beam cross-linking is what makes clean die-cutting possible at this gauge, and the sheet laminates to films, foils, and fabrics.
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