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I can't find the blue or pink foam (extruded polystyrene) locally here in SoCal, as has been documented here before. But what I have found at the local Home Depot is Insulfoam (brand name I believe). I checked their website and it indicates that it is expanded polystyrene. But I noticed that it has a thin skin (plastic?) on each side of the sheet. Does the blue and pink foam have this skin on each side? Am I looking at a comparable product? <br /> <br />Thanks.
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