... high alkali-resistence, high tensile strength, beautiful apperance, fiberglass mesh clothFiberglass screening (glass fiber screen), is made of glass fiber ... is plain woven then going through high temperature-fixingDetailed Specifications:mesh size:2x2,4x4,4x5,5x5,6x6,8x8,10x10 etc. ... , tile backing, quality repairs, mosaics, etc.Alkali-resistant fiberglass mesh fabric also has great resistance to heat.