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FoamBoard vs Plywood
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Just to make the data in this thread a little more complete, here is a link to the Owens Corning MSDS for thir Pink foam product. I bookmarked this when I was researching construction materials. The Owens Corning product is the onle readilly avialble to me locally through Honme Depot and others: <br /> <br />http://secure.owenscorning.net/Portal/uploads/document/20040618/24901_01_c.pdf <br /> <br />From reading the sheet you can see that udring the breakdown process, ie burning which includes cutting with a hot wire cutter, the product will produce some noxious and potentially toxic substances. This is not a prouct of the polystyrene itself it would appear, but of the other compounds used in the production of the board. <br /> <br />If you are going to cut these extruded foams with a hot wire it would seem prudent to do so out of doors or in a very well ventilated space and wear appropriate respiration gear. <br /> <br />The white 'bead-board' is usually an expanded polystyrene product with some pretty toxic side-effects and I understand has no flame-retardent added to it. <br /> <br />Woodland Scenics claim that their product is completely safe and non-toxic, but I haven't seen the MSDS yet. I have asked for it and when they provide it I will put it on a web-site with a link for general use. <br /> <br />John <br /> <br />
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