Fiberglass mesh for outer wall insulation and marble backing Mesh size: 4*4mm, 5*5mm, 10*10mm(2.5*2.5) Weight: 30-400g Fiberglass mesh is woven by fiberglass yarn as its basis mesh, and then coated by alkaline resistant latex. It has fine alkaline-resistant, high strength, etc. As an ideal engineering material in construction, it is mainly used to reinforce cement, stone, wall materials, roofing, ...