Glass Fiber Meshes Technical Data Sheet (TDS)
Glass fiber meshes are engineered grid-like reinforcements made from E-glass yarns, widely used in construction, waterproofing, EIFS (External Insulation Finishing Systems), and industrial reinforcement layers. These meshes provide dimensional stability, tensile strength, crack resistance, and excellent adhesion with cementitious or polymer-based systems.
Product Overview
| property | value |
|---|
| Product Form | Woven open-mesh fabrics with square or leno weave |
| Glass Type | E-glass (alkali-free), optionally AR-glass for high alkalinity environments |
| Coating | Alkali-resistant polymer coating (e.g. acrylic or styrene-butadiene) |
| Grid Size | 2.5 × 2.5 mm to 10 × 10 mm |
| Roll Width | 1000 mm, 1200 mm, 1270 mm, customizable |
Technical Specifications
| property | value |
|---|
| Mesh Weight | 45 – 350 g/m² |
| Tensile Strength (Warp) | ≥ 1000 N/50 mm (per EN 13496) |
| Tensile Strength (Weft) | ≥ 800 N/50 mm |
| Thickness | 0.40 – 1.2 mm |
| Coating Adhesion | ≥ 80% retained strength after alkaline soak (28 days) |
| Moisture Content | ≤ 0.5% |
| Loss on Ignition (LOI) | ≥ 10% |
| Alkali Resistance | ≥ 50% strength retention in 5% NaOH @ 60°C (7–28 days) |
Functional Benefits
| property | value |
|---|
| Crack Resistance | Effectively suppresses thermal and shrinkage cracks in base layers |
| Dimensional Stability | Maintains form under thermal and moisture variation |
| Cement Compatibility | Strong chemical bond with mortar and cementitious adhesives |
| Impact Resistance | Reinforces outer wall finish against impact and vibrations |
| Ease of Use | Flexible, rollable, easy to cut and embed in mortar |
Application Areas
| property | value |
|---|
| EIFS (ETICS) | Embedded in base coat to reinforce external wall insulation systems |
| Waterproofing Systems | Used with bitumen membranes and coatings |
| Tile & Stone Fixing | Underlay mesh to prevent cracking and improve bonding |
| Interior Reinforcement | Prevent wall cracking behind plaster or gypsum |
| Marble Backing Mesh | Supports fragile stone surfaces during handling and installation |
| Gypsum Board Reinforcement | Used in joints, edges, or as full backing mesh |
Processing Instructions
- Mesh is embedded into a fresh wet layer of mortar or adhesive using a flat trowel
- Ensure the mesh is placed with minimum 10 cm overlap between strips
- Cut cleanly to avoid fraying; edge sealing is available on request
- Ensure coating is not burned or degraded during handling
Packaging & Storage
| property | value |
|---|
| Packaging Form | PE-wrapped rolls, 50–100 m/roll, on paper or PVC cores |
| Palletization | Vertical or horizontal packing; shrink-wrapped on fumigated pallets |
| Storage Conditions | Keep dry, away from direct sunlight and corrosive chemicals |
| Shelf Life | 12 months under recommended storage conditions |
Quality Assurance
All batches undergo tests per relevant international standards:
- Tensile strength before and after alkaline soak (EN 13496)
- Grid spacing and coating adhesion validation
- Weight and thickness uniformity check
- Shrinkage and deformation under heat and humidity
- Visual inspection for yarn breakage, coating defects, edge fuzz
Custom mesh weights, roll widths, weave types, and chemical-resistant formulations are available upon request. Contact our technical support team for application-specific recommendations and datasheets.
