Plastazote® LD18 is one of the lighter grades available, with a density of 18kg/m3.
Plastazote® LD18 is a closed-cell polyethylene foam that offers a slight increase in structural integrity, tear resistance, and tensile strength compared to LD15 while maintaining high flexibility. It is typically used instead of LD15 when marginally better durability or cushioning performance is needed, but heavier grades like LD24 would add unnecessary cost or weight to the project. It is popular for lightweight protective packaging of delicate instruments, padding for sports equipment, and soft orthotic components.
If you’re unsure whether Plastazote® is the best option for your application, we can help. Our foam experts can provide objective, unbiased guidance on material selection, and can supply sheets, converted packaging or bespoke foam products as required.
The values provided in this product information represent data gathered from random samples of Zotefoam’s production of Plastazote® LD18 foam and represent typical data. These are given to the best of our knowledge and should be considered as guidance for selecting a suitable grade for a given application. Please contact our foam experts for further advice if required.
A summary of key information for Plastazote® LD18 foam material is as follows:
| Property | Test Standard | Typical Value |
|---|---|---|
| Apparent Density Skin/Skin | BS EN ISO 7214:2012 | 18 kg/m³ |
| Cell size (diameter) | Internal | 0.8 mm |
| Compression stress-strain (25%) | BS EN ISO 7214:2012 | 50 kPa |
| Compression stress-strain (50%) | BS EN ISO 7214:2012 | 112 kPa |
| Tensile strength | BS EN ISO 7214:2012 | 299 kPa |
| Tensile elongation | BS EN ISO 7214:2012 | 110 % |
| Flamability (Automotive) | FMVSS.302 – Burn rate | Pass at 13mm (less than 100mm/min) |
| Compression set (25% comp., 22hr, 23°C) | BS EN ISO 7214:2012 (25mm cell-cell) | 11 (½ hr recovery) |
| Compression set (25% comp., 22hr, 23°C) | BS EN ISO 7214:2012 (25mm cell-cell) | 4 (24 hr recovery) |
| Tear strength | BS EN ISO 8067:2008 Method B | 1317 N/m |
| Shore hardness (OO scale) | BS EN ISO 868:2003 | 50 |
| Max operating temp* | Internal | 95 °C |
| Thermal conductivity (mean temp 10°C) | ISO 8301:1991 | 0.039 W/mK |
*Please see datasheet for full details.
Download the datasheet (PDF format) for full technical details.
Please note that due to individual display settings, the colours you see on your screen may vary slightly from the actual material colour.
Black
These additional colours are also available, but subject to higher minimum order quantities (MOQs).
White
Polyformes can split/skive, laminate and butt-weld Plastazote® material to the specific dimensions you require. You can also select skin or cell finishes. MOQs may apply to certain size/material options.
Please get in touch with a member of our team to discuss your requirements.
Plastazote® LD18 foam sheets are suitable for conversion using the following processes:
Plastazote® LD18 is among the most commonly used technical foams, making it suitable for the following industries and uses. Please note, however, that this list is not exhaustive – if you cannot see your intended application, please get in touch to discuss your options with our foam experts.
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