What can we learn from this

[Scott Donley]

Even body armor (bullet proof vest ) come with an expiration date, around 5 to 7 years.

[Doug Dawson]

Even body armor (bullet proof vest ) come with an expiration date, around 5 to 7 years.

That's an interesting point. I have a government-issue bullet-proof vest from the late '70's (long story, overseas service) that still seems pretty solid to me. Thank heavens it doesn't have any dings in it. :^) Can anyone comment further on this?

[Scott Donley]

Doug, just do a Google search. https://www.youtube.com/watch?v=3rtaBmroJFU

[Doug Dawson]

Doug, just do a Google search. https://www.youtube.com/watch?v=3rtaBmroJFU

That's kind of marginal, it still stopped the slugs (nobody said you wouldn't get at least a bruise.) Mine is made with ceramic plates. Probably less of an issue.

[Jim Koepke]

One of my favorite movie lines about the 'sell by dates' is in RED when John Malkovich takes a bite out of a 30+ year old Moon Pie and someone asks if he is sure it is okay. He replies, "yeah, it is from before they had all that sell by date stuff."

My memory likely got the quote wrong, but it got the idea.

jtk

[Stan Calow]

car seats for kids, bike helmets and hard hats all have expiration dates too. I believe its because the plastic keeps off-gassing and gets brittle with age. Thrift stores wont take car seats because of this around here.

[Brian Elfert]

car seats for kids, bike helmets and hard hats all have expiration dates too. I believe its because the plastic keeps off-gassing and gets brittle with age. Thrift stores wont take car seats because of this around here.

I just finished remodeling my basement bathroom the other day. House was built in 1980 and some of the PVC drain pipes were very brittle so the plastic is not aging well. No issues so long as the pipes aren't touched. I could snap original pipe in half easily while newer pipe added during some earlier repairs I could not break and I had to cut it with a saw to get it into the trash..

[Frank Pratt]

I just finished remodeling my basement bathroom the other day. House was built in 1980 and some of the PVC drain pipes were very brittle so the plastic is not aging well. No issues so long as the pipes aren't touched. I could snap original pipe in half easily while newer pipe added during some earlier repairs I could not break and I had to cut it with a saw to get it into the trash..

That's weird. We deal with PVC electrical conduit a lot & the only time I've seen it get brittle is when it's been exposed to sunlight for a couple of decades. Or when it's super cold.

[Doug Dawson]

I just finished remodeling my basement bathroom the other day. House was built in 1980 and some of the PVC drain pipes were very brittle so the plastic is not aging well. No issues so long as the pipes aren't touched. I could snap original pipe in half easily while newer pipe added during some earlier repairs I could not break and I had to cut it with a saw to get it into the trash..

Mass use of PVC plumbing was fairly new back then and some manufacturers were having problems with it. There were many lawsuits starting back in the '80's.

[Jim Becker]

Mass use of PVC plumbing was fairly new back then and some manufacturers were having problems with it. There were many lawsuits starting back in the '80's.

I thought that the major issues were with a particular type of supply line product that inherently failed as a feature...it was something popular in mobile/manufactured homes if I recall.

[Edwin Santos]

I thought that the major issues were with a particular type of supply line product that inherently failed as a feature...it was something popular in mobile/manufactured homes if I recall.

I think you might be thinking about Polybutylene plumbing. It was used on a lot more than just mobile/manufactured homes. It was used really extensively in the Southwest and SoCal. Time period was late 70s-early 90's.
Ultimately made a lot of lawyers wealthier.

[Jim Becker]

Yea, that's the stuff...it was a real mess I recall.