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Old February 20th, 2009, 00:41   #26
Delierious Designer of Dastardly Detonations
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Join Date: Dec 2001
Location: in the dark recesses of some metal chip filled machine shop
Silicone rubber is terribly susceptible to silicone oil absorption which is why I avoid Guarder hop up sleeves completely. Most of the seals used in airsoft are not silicone rubber because it actually has terrible tear resistance and it's intolerance to silicone oils that we use to condition most of our other seals makes it pretty garbage material.
Want nearly free GBB gas?

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