Hello, everyone.
This is Enta.
Leveling mats used on the back of the pressure plate, continuing from the previous section.
The truth about weather resistance—at last! lol
When they say, “It’s weather-resistant!”—
It has hardly been verified at all!
However,Cross-linked polyethyleneThe results of the weather resistance tests are now available.
I suppose the general understanding is that PE (polyethylene) equals outstanding weather resistance.
So, I looked into what kinds of materials are used for PE.
It seems that polyethylene is commonly used for water distribution pipes.
These are pipes for underground installation.
To cut to the chase,
ThisI've heard that polyethylene pipes last about 100 years.
However, since it is buried in this case, it is not exposed to ultraviolet rays.
PE products exposed to ultraviolet rays generally...Contains carbon blackIt seems that...
Apparently, this carbon black acts as a UV absorber, and
It seems that carbon black is considered the best shielding agent.
I looked up various products online. I also looked through quite a few academic papers, but,
We only have data on the weather resistance of polyethylene-based materials.
I found some data showing that polyethylene has pretty good weather resistance.
While PVC pipes lose their impact resistance due to UV degradation,
There was also a paper from the Ministry of Land, Infrastructure, Transport and Tourism stating that polyethylene pipes remained unchanged.
In my personal opinion,
Polyethylene = Excellent weather resistance (I bet it'll last 20 years, lol)
Let's just go with that lol
See you later.
P.S. If anyone has any data,
I would really appreciate it if you could make this public. If there are any exposure tests, for example.
Thank you in advance.
