Fiberglass mesh is based on woven fiberglass fabric and is coated with a high-molecular-weight latex-resistant emulsion. This provides excellent alkali resistance, flexibility, and high tensile strength in both the warp and weft directions. It is widely used for insulation, waterproofing, and crack resistance in building interior and exterior walls.
Fiberglass mesh is primarily alkali-resistant. It utilizes medium-alkali-free fiberglass yarn (primarily composed of silicates, offering excellent chemical stability) twisted together in a special leno weave structure. It is then treated with a high-temperature heat setting treatment, including an alkali-resistant treatment and a reinforcing agent.
Fiberglass mesh is widely used in wall reinforcement materials (such as fiberglass wall mesh, GRC wall panels, EPS interior and exterior wall insulation boards, gypsum board, waterproofing membranes, asphalt roofing, fireproof panels, and construction caulking tape).
Fiberglass mesh attachment methods:
1. The preparation of polymer mortar must be supervised by a dedicated person to ensure mixing quality.
2. Open the bucket lid counterclockwise and re-stir the binder with a stirrer or other tool to prevent separation. Stir moderately to avoid quality problems.
3. The polymer mortar mix ratio is: KL binder: 425# sulfoaluminate cement: sand (using an 18-mesh sieve): = 1:1.88:3.25 (weight ratio).
4. Weigh the cement and sand into measuring buckets and pour them into the iron ash tank for mixing. Stir thoroughly, then add the binder according to the mix ratio and continue stirring. Stir thoroughly to avoid segregation and a porridge-like consistency. Add water as needed based on workability.
5. Water is used for concrete.
6. Polymer mortar should be prepared as needed and should ideally be used within one hour. Polymer mortar should be stored in a cool, dark place away from direct sunlight.
7. Cut the fiberglass mesh from the roll to the desired length and width, allowing for the necessary overlap or lap length.
8. Cut in a clean, flat area, ensuring accurate cutting. The cut mesh must be rolled up and not folded or stepped on.
9. Apply a reinforcement layer to the building's exterior corners. The reinforcement layer should be applied to the innermost surface, 150mm per side.
10. When applying the first coat of polymer mortar, keep the EPS board surface dry and remove any harmful substances or impurities, such as wool.
11. Apply a layer of polymer mortar to the surface of the polystyrene board. The area to be applied should be slightly larger than the length or width of the mesh, and the thickness should be approximately 2mm. Unless required for hemming, polymer mortar should not be applied to the sides of the polystyrene board.
12. After applying the polymer mortar, place the mesh on top, with the curved side facing the wall. Apply the mortar from the center outwards, ensuring the mesh is embedded in the polymer mortar. The mesh should be wrinkle-free. After the surface is dry, apply a 1.0 mm-thick layer of polymer mortar over it. The mesh should not be exposed.
13. The mesh overlap length should not be less than 70mm. In cut areas, a patching mesh should be used to overlap the mesh, with the overlap length not less than 70mm.
14. A reinforcement layer should be applied around the perimeter of door and window slats, with the reinforcement mesh attached to the innermost side. If the distance between the door and window frame and the base wall surface is greater than 50mm, the mesh should be glued to the base wall. If the distance is less than 50mm, a reverse wrapping should be applied. Mesh applied to large walls should be embedded in the outside of the door and window frame and securely glued.
15. At the four corners of the door and window, after applying the standard mesh, add a 200mm x 300mm standard mesh at a 90-degree angle to the bisector of the window corner and attach it to the outermost side for reinforcement. At the inside corners, add a 200mm long mesh piece with a width appropriate to the standard width of the window slat. Attach to the outermost surface.
16. Below the first-floor window sill, to prevent damage from impact, reinforced mesh should be installed first, followed by standard mesh. The reinforced mesh should be butted together.
17. The installation method for the reinforced layer is the same as for the standard mesh.
18. The mesh applied to the wall should be placed over the wrapped mesh.
19. The mesh should be applied from top to bottom. During simultaneous construction, the reinforced mesh should be applied first, followed by the standard mesh.
20. After the mesh is applied, it should be protected from rain and impact. Protect exterior corners, doors, and windows that are prone to impact. Anti-contamination measures should be taken at the feed opening. Any surface damage or contamination must be addressed immediately.
21. The protective layer should not be exposed to rain for 4 hours after application.
22. After the protective layer has finally set, spray water for curing, for at least 48 hours when the average daytime and nighttime temperature is above 15°C, and for at least 72 hours when it is below 15°C.
