Expanding Foam

Rigid Expanding Polyurethane Foam.

This two part liquid, consisting of parts A & B in equal volume, is available in high and low density options.

Unlike polystyrene, REP Foam can be used in contact with polyester resin and is often used for insulation from heat or cold, for filling cavities for buoyancy and preventing water ingress.

The high density foam is used as a cavity filler where great strength is required.

It can also be used to cast blocks for carving, sanding and machining when making mould masters or plugs. Common uses include automotive body parts, wings, sills, bumpers, aerofoils, and skirts.

When expanded in a confined space it forms a skin which produces a smooth, shiny surface.

Low density foam is commonly used for filling buoyancy chambers in boats and creating effective insulation barriers. It expands in ideal conditions to approximately 20-24 times its original volume.

Both high and low density options can be used for casting in moulds.

Expanded Polyurethane sheets can be supplied to order.