Extruded expanded polystyrene[polystyrene?:cnc ps/polystyrene cutting machine] (XEPS) is a closed-cell foam insulation similar to MEPS. To make it, the polystyrene pellets are mixed with various chemicals to liquefy them. A blowing agent is then injected into the mixture, forming gas bubbles. The foaming, thick liquid is then forced through a shaping die. When cooled, the panel is cut as required. Foam densities are typically 1.5 pounds per cubic foot (24 kilograms per cubic meter).
XEPS is more expensive than MEPS. Like MEPS, the R-value depends upon the density of the material and is generally about R-5 per inch. It's also much more consistent in density and has a higher compressive strength than MEPS, making it better suited for use on roofs or for wall panels. Extruded polystyrene also has excellent resistance to moisture absorption.
Like MEPS, XEPS is available with a variety of facings and is also often used as the insulation for SIPs and ICFs.
CUTCNC[CUTCNC?:cutting machine sample maker manufacturer] cutting machine[cutting machine?:CUTCNC sample maker cutting machine] can process it.
