... fabric, it use the C /E-glass fiber yarn (main ingredient is a silicate, good ... Naoh 28days later, so that guarantee high strength, high tensility, light weight.3.Our fiberglass ... excellent alkali resistance is very prominent, resistant to high alkaline substances concrete erosion. Strength retention rate> ... due to shrinkage or temperature change. High quality and low price Fiberglass cloth mesh(ISO 9001 ...