The Awnings can be made with transparent plasticsBy Carlos Mello
The Awning crystal, known as " transparent " curtain, it is indicated for closing of atmospheres that need to protect against cold, wind and moderate rain, without losing visibility, because their main characteristic is transparency.
The awning crystal doesn't have internal plot, therefore their mechanics qualities are limited and inferior to one of canvas of PVC. If be picked up wet and stay closed for some time, water doesn't evaporate and " penetrates " in crystal, leaving it with a characteristic " milk ".
This problem will disappears completely after some time open " taking sun ".
The manufacturing of awning crystal is in two ways:
Horizontal welds:
Less numbers of welds, however can have shrink in width after some weeks, because product doesn't possess internal plot. Due to static energy generated by attrition in rolling up and extremely flat surface, awning Crystal " glues " if it is coiled for several hours.