... cement mortar, excellent fitting positioning, excellent alkali resistance is very prominent, resistant to high alkaline substances concrete erosion. Strength ... can't reach by other chemical fibers.2.Specifications1) Alkali resistant fiberglass mesh size: 2.5X2.5mm 4X4mm 5X5mm 10X10mm etc ... .2) The weight of Alkali resistant fiberglass mesh :45g,60g,75g,100g,145g,165 etc .3 ...