... weight:110-160g/m2 2>mesh size:4*4,5*5,4*5,3*3 etc 3>high ... 28days later, so that guarantee high strength, high tensility, light weight.3.Our fiberglass yarn is ... the substrate, treated by high molecular alkali-resistant emulsion! It with a high degree of alkali resistance, ... excellent alkali resistance is very prominent, resistant to high alkaline substances concrete erosion. Strength retention rate> ...