Water resistance
Water resistance
Polyester is virtually unaffected by rain, seawater or other forms of water This is due to that moisture absorption of polyester is only 0.4% at room temperature and 65% relative humidity . Even at 95% humidity , less than 0.6% moisture is absorbed . Because of this, polyester geotextiles will not get heavy when wet , will not mildew , and will dry very quickly.
The mechanical properties of wet polyester geotextiles are the same as dry. There is no strength loss, elongation is not affected, there is no change in abrasion resistance , and there is no growth or shrinkage ( elasticity is not affected).
