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Edwin Pawlowski wrote:

Styrofoam is the blue material extruded by Dow Chemical. Styrofoam is a
registered trademark of Dow but often the name is mis-used when referring
to
any other type of polystyrene foam board, extruded or molded and wire cut
such as the CLOSED cell expandable polystyrene board, sometimes called
bead
board.

EPS is open cell. X (extruded) PS is closed.

Nick


Niki, Niki, Niki. You can masturbate all the equations you want, but you
can't change material at will.

I have been in the EPS business since May of 1970. I have been in every
aspect of molding expandable polystyrene beads. Packaging, insulation, ICF,
fabricated board. If it was an open cell, do you think the coffee cuts and
seafood containers would be holding liquids?

Want the names of the top chemists for this stuff at NOVA or BASF, or
Huntsman?

What is EPS?

Expanded Polystyrene (EPS) is a rigid, closed cell, plastic foam material.
EPS can be molded into a variety of shapes and sizes. EPS is typically
available in large blocks that can be cut into sheeting, architectural
detail work for use on houses and buildings, signage, floatation etc. It's
lightweight properties make it very easy to work with. Architectural EPS is
modified with a fire retardant and is usually encapsulated with an
acrylic-based finish.

EPS is totally recyclable. EPS does not contain ozone depleting CFC's or
HCFC's.