polycro?
Polycro comes in different thicknesses. Apparently, it is better to get the 1.5 mm rather than the more common 0.75 mm grade.
There are some useful construction techniques, here: https://backpackinglight.com/forums/topic/how-to-make-a-polycryo-a-frame-tarp
I have read reports of Tyvek leaking at pressure points, e.g., when kneeling. On the other hand Polycro seems to be less durable.
I think I had one of polycro too. So thin, like cling film.
Maybe it was the 0.75mm thickness variety? The 1.5mm grade would be a fair bit thicker than ordinary cling film.
@Squaredisk started
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Polycro comes in different thicknesses. Apparently, it is better to get the 1.5 mm rather than the more common 0.75 mm grade.
There are some useful construction techniques, here:
https://backpackinglight.com/forums/topic/how-to-make-a-polycryo-a-frame-tarp
I have read reports of Tyvek leaking at pressure points, e.g., when kneeling. On the other hand Polycro seems to be less durable.