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#42105 - 09/16/04 07:51 AM Durability of plastic boxes?  
Pete Magsig  Offline
Junior Member
Joined: Aug 2004
Posts: 3
Ann Arbor, MI, United States
Does anyone have any direct experience with plastic boxes not aging well?

Brittleness?

I'm rewiring portions of a 1930's cape cod, which is all metal box, and wondering if 50 years from now the plastic boxes I'm using will be in as good a shape as the metal boxes I'm finding. In theory, probably not, but I'm wondering if anyone has encountered plastic boxes that have 'aged out'.


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#42106 - 09/16/04 11:03 AM Re: Durability of plastic boxes?  
Haligan  Offline
Member
Joined: Feb 2004
Posts: 111
Berkeley, CA USA
Definitely seem to get less pliable with age. I wonder if the salty air of the Cape is worse for metal boxes or plastic.


#42107 - 09/16/04 03:11 PM Re: Durability of plastic boxes?  
CTwireman  Offline
Member
Joined: Feb 2002
Posts: 840
Connecticut, USA
I don't think this answers the question at all, but I have heard that all the plastic products that we bury in landfills will still be there hundreds of years from now.

I have a lot of faith in the durability of plastic. After all, if it is good enough for water and gas mains, then it is good enough for electrical boxes, IMO.

Peter


Peter

#42108 - 09/16/04 04:30 PM Re: Durability of plastic boxes?  
cpalm1  Offline
Member
Joined: Jan 2004
Posts: 66
plastic is pretty durable as long as it is not exposed to UV light, unless it is UV resistant. also, heat can dry out the plastic. if the plastic is in the dark and not often exposed to temps over 90 degrees, it should last practically forever. if the boxes are installed in an attic, i would expect to see some deterioration in 20 years or so, but i don't think it would be a safety hazard. i don't think the boxes will ever just fall appart by themselves.



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