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Following on from an idea I posted earlier today, I have realised a particularly good use for recycled plastics, that I had previously overlooked.
In my hobby, bonsai, we use training pots for the trees, made from a mix of crushed mica, polyethylene and graphite. They are much cheaper than quality
ceramic pots (At $60.00 retail for a 500mm x 200mm x 125mm pot, vs up to $400.00 for a quality Japanese or Korean pot). I'm sure they're produced for just a fraction of that.
Using recycled polyethylene for this purpose would be a very sensible solution to a couple of problems:
1. They will not break in transit, unlike terracotta / concrete roof tiles
2. The addition of mica makes them a very good heat insulator, important in sunny areas.
3. They seem to be quite UV stable, in a way that normal polethylene does not.
4. They can be easily recycled again, if desired.
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