Tjikko Fiber Mesh Glass Coated Roll 4 Inch width x 50 Meter Length, 80 Gsm for Waterproofing, Roof/Crack Patch/Wall Repair, Wall Coating, Plastering mesh, Chicken mesh, Murga Jali (4 Inch, 80 GSM)

Good

Excellent product for plastering purposes to avoide cracks in future...

1. Material Composition and Physical Properties • Yarn Type: Alkali-resistant (AR) E‑glass fibers, coated with a silane-based sizing to enhance bond with cementitious plasters. • Areal Weight: 145 g/m² (±5%), striking a balance between flexibility and reinforcement capacity. • Weave Structure: Plain weave with uniform grid openings (~2 × 2 mm), providing isotropic tensile behavior. • Tensile Strength: • Warp: ≥ 410 N/50 mm • Weft: ≥ 400 N/50 mm • Elongation at Break: ≤ 3.0%, ensuring dimensional stability under load. • Alkali Resistance: Retains ≥ 75% tensile strength after 28 days. 2. Reinforcement Performance in Plaster • Crack Control: The 145 gsm mesh integrates within the first 3–5 mm of base plaster, distributing stresses and limiting micro‑crack propagation under thermal cycling and structural movements. • Impact Resistance: Enhances toughness; demonstrate a 30–40% increase in energy absorption before fracture compared to unreinforced samples. • Bond Strength: Cementitious pull‑off when properly embedded, indicating robust adhesion between mesh, plaster, and substrate. 3. Installation and Handling • Compatibility: Suitable for standard cement–lime plaster, gypsum-based plasters, and polymer‑modified mixes. • Application: 1. Substrate Preparation: Ensure clean, sound substrate free of dust, oils, or loose material. 2. Base Coat: Apply a scratch coat (minimum 3 mm thick), press mesh into wet plaster, overlapping adjacent sheets by 50–100 mm. 3. Top Coat: Apply finishing coat (1–2 mm) after base coat reaches initial set (approx. 24 hours). • Workability: Excellent drape-conforms to curved or irregular surfaces without creasing. Scissors cut cleanly; minimal fiber shedding. 4. Advantages and Limitations Advantages: • Balanced tensile reinforcement for crack mitigation. • Good alkali resistance ensures long-term durability in cementitious systems. • Ease of handling reduces installation errors. Limitations: • Slightly higher material cost compared to ultra-lightweight options. • Not optimal for extreme impact zones-heavy duty mesh (≥ 180 gsm) may be preferable. 5. Final Recommendations For residential and light‑commercial plastering projects demanding enhanced crack control without compromising application speed, a 145 gsm fiberglass mesh is an excellent choice.