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AntiStatic Straps perished

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johnh:
Going through a box of accumulated stuff

Came across these, there were 10 of the wrist straps, seven had perished

Thought it strange that most had perished but a few had survived

Salvaged the crocodile clips  and the lugs with snaps

james_s:
I'd have expected the elastic to deteriorate rather than the insulation but I suppose it's down to the composition and storage conditions. Is it possible one of those is older, or was exposed to UV, or ozone?

james_s:
I have a love/hate relationship with plastic. It can be wonderful stuff, but it can also be a real pain and start decomposing for no apparent reason. It's a real problem with with older cars as trim pieces shrink and get brittle. I had a TDS3000 scope that was in great shape but became super brittle and started crumbling. Nothing I could do about it but eventually found a broken scope with a good housing.

Halcyon:

--- Quote from: james_s on January 24, 2021, 04:44:04 am ---I had a TDS3000 scope that was in great shape but became super brittle and started crumbling.

--- End quote ---

Same thing happens with old white plastic Cisco Aironet access points and the old green Catalyst 10/100 switches.

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