The specifications of mesh fabric-specifically mesh size, thickness, and tensile strength-directly determine its intended use and protective performance. Different specifications are suited to different construction scenarios; improper selection not only fails to provide the necessary protection but can also increase construction costs and compromise construction quality. This article outlines the key specifications of mesh fabric and provides selection guidelines based on application to assist in making the right choice.
The core specifications are as follows: First is mesh size, the most critical parameter, categorized into fine (1–2 mm), medium (3–5 mm), and coarse (6–10 mm or larger) mesh. Second is thickness; standard thickness ranges from 0.1 to 0.3 mm, with greater thickness correlating to higher tensile strength. Third is tensile strength (measured in N/50mm); higher tensile strength yields better protective performance. Standard tensile strength is ≥1000 N/50mm for fiberglass mesh and ≥800 N/50mm for polyester mesh. Guide to Specifications and Applications: First, **fine-mesh cloth** (mesh size 1–2 mm, thickness 0.1–0.15 mm) is primarily used for fine crack prevention on interior walls-such as at drywall joints, within putty layers, and on ceilings-offering excellent adhesion and a smooth finish that hides the mesh pattern, thus meeting aesthetic requirements for interior decoration. Second, **medium-mesh cloth** (mesh size 3–5 mm, thickness 0.15–0.2 mm) is the most versatile type; suitable for exterior wall insulation, general wall crack prevention, tile installation reinforcement, and wall renovation, it balances protective performance with ease of application, making it a standard choice in construction. Third, **coarse-mesh cloth** (mesh size 6–10 mm, thickness 0.2–0.3 mm) is mainly used for foundation reinforcement, roofing protection, large-scale wall reinforcement, and outdoor ground protection; featuring high tensile strength and the ability to withstand significant stress, it is ideal for harsh outdoor environments and heavy-duty protection needs. Fourth, **special-specification mesh cloth** (mesh size >10 mm, thickness >0.3 mm) is primarily used for the reinforcement and protection of large-scale projects such as industrial buildings, bridges, and tunnels; offering extremely high tensile strength, it meets the most demanding protection requirements.
Selection Considerations: Beyond specifications, material selection should be based on the construction environment (indoor/outdoor, humid/dry) and specific protection needs (crack prevention, structural reinforcement, or thermal insulation). Fiberglass mesh cloth is preferred for outdoor or humid environments, while polyester mesh cloth is the better choice for indoor applications or scenarios requiring high flexibility. Additionally, ensure the selected mesh cloth complies with national standards regarding performance metrics such as tensile strength and corrosion resistance.
