EPO

Other Names:

Expanded Polyolefin

Description:

Expanded Polyolefin, is typically used in new construction as a flame retardant, is sometimes used to make radio-controlled airplane components and is most known for its use in self-skinned footwear, such as Crocs.

o·le·fin (l-fn) n. Any of a class of unsaturated open-chain hydrocarbons such as ethylene, having the general formula CnH2n; an alkene with only one carbon-carbon double bond.

Advantages:

Generally the same as EPP, that is, doesn't shatter like Polystyrene and will tend to return to its original shape after deformation.

EPO has a much better surface finish than even perfectly moulded EPP, meaning a glossier and more aerodynamic finish.

EPO does not ‘relax’ and deform like EPP can when exposed to the elevated temperatures common in car boots and shipping containers.

EPO is moulded at a lower temperature than EPP. At higher tmperatures the plastic skeletons are more susceptible to being deformed by the foam beads pushing past them in the molding process e.g. not such a problem with EPO.

EPO is compatible with a wider range of glues and paints, both of which are important to building, repairing.

EPO is stiffer at the same density – meaning that the airframe will react faster to quick changes in direction.

Reference - The Quadshot

Disadvantages:

Handling:

Cuts with a sharp knife. Polyurethane glue for assembly or repair.

See - How to Paint EPO Foam

Suppliers: