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equipment:storage [2019/06/07 18:17] – [Foams] mcmaster | equipment:storage [2019/07/05 18:25] – mcmaster | ||
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* Anti-static: | * Anti-static: | ||
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+ | < | ||
+ | depends on whether you want your foam to turn to goo or powder. personally i prefer goo | ||
+ | powder is open cell foam, it works as an abrasive too | ||
+ | goo is closed cell foam, which is oddly slick | ||
+ | after 20 years the foams disintegrate | ||
+ | open cell foam turns into some sort of acid (acetic?) which will eat chip legs i think | ||
+ | i don't know about closed cell | ||
+ | i think closed cell disintegrates much slower but gets ' | ||
+ | </ | ||
+ | |||
+ | [Lord_Nightmware IIRC] | ||
+ | |||
+ | < | ||
+ | The open cell foam is very likely polyurethane foam†, which degrades into a powder | ||
+ | (clumps if compressed) primarily via hydrolysis / photo-oxidation depending on the type¹ | ||
+ | and (assuming polyester-based PU) releases mainly adipic acid, which is corrosive². | ||
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+ | †) general consideration of properties, and a few very rough tests such as: | ||
+ | heating (chars: thermoset polymer), comparison against known PU foam; with supportive results. | ||
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+ | https:// | ||
+ | https:// | ||
+ | </ | ||
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+ | [[https:// | ||
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+ | |||
+ | == Brands == | ||
https:// | https:// | ||
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* Tensile Strength: 31 psi (215kPa) | * Tensile Strength: 31 psi (215kPa) | ||
- | < | + | https:// |
- | depends on whether you want your foam to turn to goo or powder. personally i prefer goo | + | * "For Use With: Pin Insertion" |
- | 14:57:57 powder is open cell foam, it works as an abrasive too | + | * Density: 50kg/m³ |
- | 14:58:07 goo is closed cell foam, which is oddly slick | + | * Tensile Strength: 515KPa |
- | 14:58:23 after 20 years the foams disintegrate | + | |
- | 14:58:41 open cell foam turns into some sort of acid (acetic?) which will eat chip legs i think | + | |
- | 14:58:45 i don't know about closed cell | + | |
- | 14:58:56 i think closed cell disintegrates much slower but gets ' | + | |
- | </ | + | |
===== Density ===== | ===== Density ===== |