Fiberglass mesh 45gr 50gr 55gr 60gr 65gr 70gr 75gr 80gr 90gr 100gr 160gr
Available width: 1m-2m
Available Mesh Size: 1*2mm 2*3mm,3*3mm 3*4mm 4*4mm, 5*5mm, 4*5mm, 7*9 ,
Available Roll length: 100m 200m 300m ,
FAQ:
How to choose fiberglass net for stone back mesh?
Choosing the right fiberglass net (back mesh) for reinforcing natural stone, marble, or granite slabs depends on several key specifications:
1. Mesh Size and Opening (Grid Size)
• Grid dimensions: Common grid sizes range from 2x2 mm to 5x5 mm (or larger up to 10x10 mm for heavy-duty work).
• For stone backing: A tighter or medium grid (such as 4x4 mm or 5x5 mm) is typically preferred because it provides an ideal balance of structural strength while still allowing epoxy, polyester resin, or mastic glue to flow through and bond securely to the stone surface.
2. Weight and Density (GSM)
• Measured in grams per square meter (g/m² or GSM):
• For stone slabs and marble reinforcement: Heavier-duty meshes—generally ranging from 75 g/m² to 160+ g/m² (or higher depending on slab thickness and fragility)—are used to handle the weight and stress of stone slabs.
• Avoid ultra-lightweight joint tapes (50 g/m²) for full slab backing, as they lack the tensile strength needed to prevent cracking or snapping under load.
3. Resin and Adhesive Compatibility
• Epoxy/Resin bond: Stone backing involves embedding the fiberglass net into a layer of liquid epoxy or polyester resin.
• Ensure the sizing or coating on the fiberglass yarn is chemically compatible with your specific stone-backing resin so it doesn't degrade, delaminate, or lift off the back of the slab over time.
4. Alkali and Chemical Resistance
• Coating quality: Look for a high-quality acrylic, latex, or specialized chemical-resistant coating. Even though stone backings use resin rather than cement, a treated, corrosion-resistant mesh ensures long-term dimensional stability and prevents moisture degradation if the stone is installed in wet areas (like kitchens, bathrooms, or outdoors).
5. Tensile Strength and Flexibility
• Warp and weft strength: The mesh should have high tensile strength in both directions (warp and weft) to stop the stone from flexing or snapping along hidden micro-fissures.
• Flexibility: It should remain flexible enough to conform smoothly to the contours or minor unevenness on the back of a cut stone slab without popping up or trapping air pockets.
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