Views: 0 Author: Site Editor Publish Time: 2026-03-19 Origin: Site
Fiberglass mesh is essential for crack prevention in construction
Alkali-resistant coating protects against cement degradation
Standard mesh sizes: 4×4mm, 5×5mm with weights from 110g to 160g per m²
Proper selection depends on application: EIFS, tile backing, or wall reinforcement
Fiberglass mesh is a woven reinforcement material made from fiberglass yarns coated with alkali-resistant materials. It serves as a critical component in modern construction, providing structural reinforcement and crack prevention across various applications.
Hebei Gerou Wire Mesh Co., Ltd. specializes in manufacturing high-quality alkali-resistant fiberglass mesh with daily production capacity of 450,000 m² across 50,000 m² facility.
| Application | Mesh Weight | Mesh Size | Purpose |
|---|---|---|---|
| EIFS Systems | 145-160g/m² | 5×5mm | External insulation reinforcement |
| Tile Backing | 110-130g/m² | 4×4mm | Prevent tile cracking |
| Wall Rendering | 130-150g/m² | 5×5mm | Crack prevention in plaster |
| Waterproofing | 120-140g/m² | 4×4mm | Membrane reinforcement |
The most common type for construction, featuring a special coating that protects against alkaline environments in cement and plaster.
Key characteristics:
Coating: Acrylic or PVC alkali-resistant treatment
Tensile strength: ≥750 N/50mm (warp), ≥500 N/50mm (weft)
Alkali resistance: ≥90% strength retention after 28 days in NaOH solution
Used for non-cement applications where alkali resistance is not critical.
Common uses:
Drywall joint tape
Decorative finishes
Non-structural reinforcement
Features a pre-applied adhesive backing for quick installation without additional mortar or adhesive.
Advantages:
Faster installation time
Reduced material costs
Consistent adhesive application
Different construction applications require specific mesh properties:
For External Wall Insulation (EIFS):
Weight: 145-160g/m² minimum
Mesh size: 5×5mm
Must be alkali-resistant
Compliance: EN 13496 or ASTM D5733
For Tile Installation:
Weight: 110-130g/m²
Mesh size: 4×4mm or 5×5mm
Flexible for curved surfaces
For Interior Wall Rendering:
Weight: 130-145g/m²
Mesh size: 5×5mm
Standard alkali resistance
Quality fiberglass mesh should meet these criteria:
Standard specifications from Gerou Wire Mesh:
Width options: 15cm, 20cm, 1m
Length options: 25m, 50m, 100m per roll
Mesh sizes: 4×4mm, 5×5mm (customization available)
Quality grades: EA, Ea, A, B+, B
Storage: Enclosed dry storage facilities required
Surface preparation: Ensure substrate is clean, dry, and structurally sound
Temperature requirements: Install between 5°C and 35°C
Moisture check: Substrate moisture content should be below 5%
Apply adhesive or mortar evenly (2-3mm thickness)
Work in manageable sections (1m² at a time)
Unroll mesh horizontally or vertically
Press firmly into wet adhesive
Ensure complete embedment without air pockets
Minimum 10cm overlap on all edges
Additional reinforcement at corners and stress points
Wait 12-24 hours before applying finish layer
Total system thickness: 5-7mm
| Mistake | Consequence | Solution |
|---|---|---|
| Insufficient overlap | Cracking at joints | Maintain 10cm minimum overlap |
| Poor embedment | Mesh delamination | Press firmly, ensure full contact |
| Wrong mesh weight | System failure | Match weight to application |
| Installing in rain | Adhesive failure | Check weather forecast |
| Skipping primer | Poor adhesion | Always prime porous surfaces |
Measures the breaking force of mesh in both warp and weft directions according to ISO 10319.
Acceptable values:
Warp direction: ≥750 N/50mm
Weft direction: ≥500 N/50mm
Immerses mesh in saturated calcium hydroxide solution for 28 days, then retests tensile strength.
Pass criteria: ≥90% strength retention
Confirms opening dimensions match specifications using calibrated measuring tools.
Tolerance: ±0.5mm from stated size
4×4mm mesh has smaller openings, providing better crack resistance for thin applications like tile backing. 5×5mm mesh is standard for EIFS and wall rendering, offering better adhesive penetration and coverage rates.
Properly installed alkali-resistant fiberglass mesh can last 50+ years within wall systems. The key factors are correct installation, adequate coating quality, and protection from UV exposure during construction.
Yes, alkali-resistant fiberglass mesh is specifically designed for exterior applications including EIFS, stucco systems, and outdoor tile installations. Ensure mesh meets EN 13496 or equivalent standards for exterior use.
Unopened rolls stored in dry conditions (temperature 10-30°C, humidity <60%) maintain full specifications for 24 months from manufacture date. Always check packaging date before use.
Minimum 10cm overlap on all edges is required for structural continuity. In high-stress areas like corners and around openings, increase overlap to 15-20cm or use pre-formed corner pieces.
Selecting the right fiberglass mesh is critical for construction project success. Key factors include application type, mesh weight, alkali resistance, and proper installation technique.
For professional-grade fiberglass mesh with consistent quality and reliable specifications, choose manufacturers with proven track records and proper certifications. Hebei Gerou Wire Mesh Co., Ltd. produces 450,000 m² daily with 240 woven machines and 80 professional technicians, serving European and American markets.
Next Steps:
Download our fiberglass mesh specification sheet
Request samples for your specific application
Consult with technical team for project-specific recommendations