Ethafoam® 900 is the heaviest-duty material in the Sealed Air Ethafoam® range, with its closed-cell structure providing a density of 146kg/m³.
Its high density means that Ethafoam® 900 polyethylene foam provides vastly superior load-bearing support compared to standard grades and offers significant vertical compressive strength, reaching 60 psi at 25% deflection. As such, it completely resists deformation under static loads up to 20 psi while maintaining compressive creep under 10% over long periods. Ethafoam® 900 is suitable for multi-drop industrial cushioning, vibration isolation and structural dunnage involving heavy machinery, aerospace components, and military equipment.
At Polyformes, we can supply all Ethafoam® grades, as prefabricated packaging and dunnage, or as material for conversion at your business. Our in-house equipment allows us to cost-effectively supply products or materials in the exact size and format you need.
The data presented for Ethafoam® 900 relates to the unfabricated polyethene foam product. While values shown are typical of this product, they should not be construed as specification limits. 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 Ethafoam® 900 foam material is as follows:
| Property | Test Standard | Typical Value |
|---|---|---|
| Density | ASTM D3575-08 ISO 845:2006 | 146 kg/m³ |
| Compressive Strength (vertical @ 25%) | ASTM D3575-08 Suffix D ISO 7214:2007 | 450 kPa |
| Compressive Strength (vertical @ 50%) | ASTM D3575-08 Suffix D ISO 7214:2007 | 650 kPa |
| Compressive Set (50%) | ASTM D3575-08 Suffix B ISO 1856:2000 | < 15 |
| Compressive Creep (%) (1000 hrs) | ASTM D3575-08 Suffix BB | < 10 @ 140 kg/dm2 |
| Tensile Strength (@ peak (MD/CD)) | ASTM D3575-08 Suffix T ISO 1798: 2008 | 510 / 758 kPa |
| Tear Strength (MD/CD) | ASTM D3575-08 Suffix G | 56 / 56 |
| Water Absorption | ASTM D3575-08 | < 1 % |
| Thermal Stability | ASTM D3575-08 Suffix S | < 2 % |
| Static Decay* (Anti-Static Grade) | EIA Std. 541 Append. F | < 2 sec |
| Surface Resistivity* (ohms ⁄ sq) (Anti-Static Grade) | EIA Std. 541 Section 4.3 | 1.0 × 10⁹ – 1.0 × 10¹² |
*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.
*Yellowing: While Ethafoam® is very stable, prolonged exposure to high heat or UV light during storage may cause minor discolouration.
White
Polyformes can split/skive, laminate and butt-weld Ethafoam® planks to the specific dimensions you require. MOQs may apply to certain size/material options.
Please get in touch with a member of our team to discuss your requirements.
Ethafoam® 900 foam is suitable for conversion using the following processes:
Ethafoam® 900, whilst primarily used for protective packaging, may also be suitable for the following applications. 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.
By sourcing your foam material from Polyformes, you can expect several benefits.
Advice and knowledge
Official Sealed Air suppliers
Widest range of options
Fabricated foam products
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