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Polyethylene and polypropylene safe for storage?
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<p>[QUOTE="dannic113, post: 1342893, member: 35203"]Personally I use #5 polypropylene. It has almost no leaching or breakdown of materials. #2 high density polyetehylene is good but eventually from what I understand the ethylene part can emit non toxic gases but it takes decades and some high temps so unless you live in the southwest it should be fine. This plastic may also explain why you would need the cent trick from desertgem. I would only avoid #3 PVC, #4 Low Density Polyethylene (aka cleaners bags, grocery bags material) allows gases in and out. #6 plastic which is polystyrene(foam plates) very porous and toxic if melted and #7 plastics (you never know what is in them). Just to be thorough #1 pete is to my knowledge only used in construction and food container applications no storage bins are made from it.[/QUOTE]</p><p><br /></p>
[QUOTE="dannic113, post: 1342893, member: 35203"]Personally I use #5 polypropylene. It has almost no leaching or breakdown of materials. #2 high density polyetehylene is good but eventually from what I understand the ethylene part can emit non toxic gases but it takes decades and some high temps so unless you live in the southwest it should be fine. This plastic may also explain why you would need the cent trick from desertgem. I would only avoid #3 PVC, #4 Low Density Polyethylene (aka cleaners bags, grocery bags material) allows gases in and out. #6 plastic which is polystyrene(foam plates) very porous and toxic if melted and #7 plastics (you never know what is in them). Just to be thorough #1 pete is to my knowledge only used in construction and food container applications no storage bins are made from it.[/QUOTE]
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