Ethafoam also known as Stratocell or Jiffy Foam, cut to size, in many thicknesses, in White or Dark Grey, please choose from the drop down lists above. The key properties that make this foam an ideal foam: Resistant to water & moisture Excellent strength Shock & vibration-absorbing Resilient and lightweight. High load-bearing Impervious to mildew, rot and bacteria Environmentally friendly Aesthetically, Ethafoam/Stratocell/Jiffy polyethylene foam looks very similar to polystyrene foam and is often confused by this. However, the physical density, chemicals and characteristics of Ethafoam/Stratocell are entirely different from those that form polystyrene and should not be substituted without careful consideration. Efoam is one of the leading suppliers of Ethafoam/Stratocell in the UK.