45 GSM Fiber Mesh (45 Grams per Square Meter Fiber Mesh)
A construction reinforcement material made of glass fiber, with a weight of 45 grams per square meter. Widely used for crack prevention in walls and reinforcing insulation systems.
1. Basic Definition & Material Properties
- Grams per Square Meter (GSM): 45 g/m², a lightweight fiber mesh with high tensile strength.
- Material: Typically woven from C-type or E-type glass fiber yarns coated with alkali-resistant resin, offering excellent alkali resistance, corrosion resistance, and aging resistance.
- Structure: Plain-woven or leno-woven design ensures uniform mesh openings, flexibility, and dimensional stability.
2. Core Functions
- Crack Prevention: Distributes stress to prevent cracks in concrete, mortar, or other materials caused by temperature changes, shrinkage, or load stress.
- Insulation System Reinforcement: Enhances the integrity and impact resistance of exterior wall insulation systems (e.g., EPS/XPS boards).
- Corrosion Resistance: Ideal for humid environments (bathrooms, basements) or industrial sites with chemical exposure.
3. Typical Applications
| Application Area | Specific Use |
|---|---|
| Exterior Walls | Reinforces insulation boards (EPS, rock wool) to prevent cracking and detachment. |
| Interior Repairs | Repairs wall cracks, fills holes, and strengthens repair areas. |
| Waterproofing | Acts as a backing material for waterproof coatings or membranes to improve tear resistance. |
| Decorative Material Reinforcement | Secures marble, mosaic, or tiles to prevent detachment and enhance adhesion. |
| Industrial Floors | Strengthens concrete floors to reduce dusting and cracking. |
4. Technical Parameters (Typical Product Example)
| Parameter | Value/Feature |
|---|---|
| Weight | 45 g/m² |
| Mesh Size | 4mm×4mm or 5mm×5mm (customizable based on needs). |
| Tensile Strength | Warp ≥700 N/50mm, Weft ≥650 N/50mm (ensures crack resistance). |
| Temperature Range | -20°C to +80°C (short-term tolerance up to 150°C). |
| Application Method | Apply mortar first, then press mesh firmly with a trowel for full adhesion. |
5. Comparison by Weight Class
- Low GSM (45–80): Lightweight and cost-effective for interior walls or low-strength requirements.
- Mid/High GSM (120–160): Higher strength for exterior insulation systems or high-load areas.
- Ultra-High GSM (≥240): Specialized reinforcement for bridges, industrial structures, etc.
6. Construction Considerations
- Surface Preparation: Ensure walls are smooth, clean, and free of dust. Apply interface agent if needed.
- Cutting & Installation: Trim mesh as required; avoid excessive overlap (≥5cm recommended).
- Curing: Keep the surface moist for 24 hours post-application to prevent cracking.
7. Market Brands & Suppliers
- Domestic Brands: HBGB (Hebei), Taiwen (Hebei), CMAX (Shanghai), offering customizable specs (color, mesh size).
- Certifications: Compliant with GB/T 2991-2020 Test Methods for Reinforcement Materials and industry standards.
Shan County Fiberglass Mesh
China Shan County Fiberglass Mesh factory supplying Mesh screen for pests and mesh cloth for concrete building materials
