Applications
- Duct insulation and fittings
- OEM insulation
- Automotive
- Custom fabricated kits available
Closed cell Polyethylene
Closed cell Polyethylene is a physically cross linked closed cell polyolefin foam that is lightweight, environmentally friendly, and extremely versatile. The fine, closed-cell product, is available in continuous rolls or sheets, and has two smooth skins making it very easy to fabricate. For data refer to grade 4000.
Availability
Available in thicknesses of 2mm, 3mm, 5mm, 8mm, 10mm, 15mm and 20mm in sheets/rolls.
Data
| Property | Test Method | Units | Typical Value | |||||
| Grade | 0500 | 1000 | 1500 | 2000 | 3000 | 4000 | ||
| Density | Internal | kg/m3 | 200 | 100 | 67 | 50 | 33 | 25 |
| Tensile Strength
Longitudinal Crosswise |
JIS K6767 |
kg/cm2 kg/cm2 |
26.2 18.3 |
14.6 10.4 |
9.6 6.1 |
6.9 4.8 |
4.4 2.6 |
3.3 1.8 |
| Elongation
Longitudinal Crosswise |
JIS K6767 |
% % |
430 360 |
370 330 |
260 200 |
250 215 |
250 158 |
240 140 |
| Tear Strength
Longitudinal Crosswise |
JIS K6767 |
kg/cm kg/cm |
12.5 10.4 |
6.3 5.2 |
4.2 3.1 |
3.2 2.1 |
2.4 1.5 |
2.0 1.3 |
| Compression Strength
25% deflection 50% deflection |
Internal |
kg/cm2 kg/cm2 |
3.3 5.7 |
1.3 2.6 |
0.72 1.46 |
0.54 1.30 |
0.35 1.00 |
0.30 0.85 |
| Compression Set
25% deflection 50% deflection |
JIS K6767 |
% set % set |
3.2 6.0 |
4.0 9.2 |
4.5 13.8 |
5.1 15.0 |
6.5 23.0 |
7.5 30.0 |
| Dimenl. Change Heat
Longitudinal Crosswise |
70°C, 22h |
-% -% |
0.54 0.1 |
0.83 0.20 |
1.03 0.30 |
1.43 0.40 |
1.45 0.75 |
1.50 0.90 |
| Working Temp Range | Internal | °C | -80 / +100 | |||||
| Water Absorption | JIS K6767 | mg/cm2 | 0.02 | 0.03 | 0.04 | 0.05 | 0.07 | 0.09 |
| Vapour Permeability | JIS Z0208 | g/m2,24h | 1.9 | 3.3 | 3.8 | 4.2 | 4.6 | 5.3 |
| Volume Resistivity | JIS K6767 | Ω.cm | 1018 | |||||
| Dielectric Constant | JIS K6767 | Ɛ (1 kHz) | 1.55 | 1.56 | 1.57 | 1.57 | 1.58 | 1.58 |
| Dielectric Loss
|
JIS K6767 | tan δ (1 kHz) | 0.001 | 0.0005 | 0.0004 | 0.0004 | 0.0001 | 0.0001 |
| Dielectric Strength | JIS K6767 | kV / mm | 8.0 | 6.9 | 5.5 | 5.1 | 4.8 | 4.5 |
