Airsoft Canada - View Single Post - e's Tokyo Marui FN Herstal 5-7: "The Black Edition"

wind_comm · April 6th, 2013, 22:04

there have been several discussions about this on ASM, as it related to pistons.

polycarbonate is fantastic if you want to absorb ONE very large impact, ONCE. repeated impacts cause microfractures which very quickly become huge fractures.

the ideal material for airsoft purposes would be glass-fibre filled nylon (SHS/Lonex pistons for example) at about 20-30%. doesn't fracture like polycarb, isn't brittle like cheap plastics...pretty much perfect.

the largest enemy that people face is partly themselves and partly bad labels. polycarbonate is incredibly strong when used in the role it's intended to be used in (laminated bullet-resistant "glass"). it comes only in clear or slightly tinted. when you say "bulletproof" people cream themselves. it's a terrible material for repeated impact applications
companies labelling cheap(er) opaque plastics as "polycarbonate" and then selling them as upgrades really drives me nuts. not only does it just muddy the waters, the user ends up with a worse understanding of plastics and polymers and wants everything made of metal...which leads to pot metal vs aluminum vs steel...=.="

bah. morale of the story is, you can find everything I just regurgitated on ASM, from people with degrees in this stuff.

doesn't stop that 5-7 from being incredibly damn sexy though.

April 6th, 2013, 22:04	#9
wind_comm Trader rating Join Date: Jul 2011 Location: Calgary/Vancouver	there have been several discussions about this on ASM, as it related to pistons. polycarbonate is fantastic if you want to absorb ONE very large impact, ONCE. repeated impacts cause microfractures which very quickly become huge fractures. the ideal material for airsoft purposes would be glass-fibre filled nylon (SHS/Lonex pistons for example) at about 20-30%. doesn't fracture like polycarb, isn't brittle like cheap plastics...pretty much perfect. the largest enemy that people face is partly themselves and partly bad labels. polycarbonate is incredibly strong when used in the role it's intended to be used in (laminated bullet-resistant "glass"). it comes only in clear or slightly tinted. when you say "bulletproof" people cream themselves. it's a terrible material for repeated impact applications companies labelling cheap(er) opaque plastics as "polycarbonate" and then selling them as upgrades really drives me nuts. not only does it just muddy the waters, the user ends up with a worse understanding of plastics and polymers and wants everything made of metal...which leads to pot metal vs aluminum vs steel...=.=" bah. morale of the story is, you can find everything I just regurgitated on ASM, from people with degrees in this stuff. doesn't stop that 5-7 from being incredibly damn sexy though. __________________ too busy tinkering to play.