Closed Cell Polyethylene Foam
In addition to our full range of open cell polyurethane foams, Foam Engineers is unique in the UK in offering from stock an equally full range of closed cell foam materials too. Polyethylene Foam, also known as PE foam or LDPE foam, is a thermoplastic which is blown into a foam format. The most widely available PE foam is known as non-cross linked foam.
There are 2 types of non cross linked foam available in the UK, and Foam Engineers stocks both types.
Sealed Air Stratocell is a cost effective foam made up from laminations, also known as polylam. In a variety of low to medium densities this type of foam comes in various standard thicknesses from 15mm to 50mm thick. Normally white in colour, other colours such as black and anti-static pink are available from stock. Where a sufficient quantity is available special colours can be produced such as light blue and mint green.
Pregis Nopaplank also known as Jiffycel is the product of choice for performance packaging designers. Also known as a closed cell polyolefin foam, this block foam has a density of 2.2lb per ft3 which is 35 kg/m3. Extruded using an environmentally friendly blowing agent system, a solid block with uniform cell structure is available up to 100mm thick. Again, low density and anti-static grades are available and the standard colours are white and black.
Both these 2 types of non cross linked polyethylene PE foam are reusable and completely recyclable because they are made out of non cross linked polyethylene. The foam is strong and resilient offering excellent chemical resistance. It’s closed cell nature makes it an excellent buoyancy aid and a good thermal insulator. Typical applications include returnable dunnage and protective packaging along with case inserts and parts separators.
Other types of closed cell foam include cross linked PE foam. The cross linking process enhances many of the performance characteristics of the foam. The foams can be made with fine and regular cells, with a wide working temperature range and excellent thermal insulation properties, they are chemically inert. These foams have excellent physical properties and display good thermo and pressforming characteristics. They can be obtained in a range of vivid colours too.