Knife-Coated Fabric Liner for Galvanized Steel Fish Tank
Qingzhou Baimu Machinery Co., Ltd.
Knife-Coated Fabric Liner for Galvanized Steel Fish Tank Introduction
The knife-coated fabric liner is lightweight, flexible, and highly waterproof—serving as the essential anti-leak component in galvanized steel fish tanks, widely used in land-based recirculating aquaculture systems (RAS).
1. Material
Made of high-strength polyester scrim fabric with double-sided PVC knife-coated layers—non-toxic, tear-resistant, and UV-stable. Complies with aquaculture safety standards and safe for direct contact with water.
2. Available Types
- Weight: commonly 850g/m², 1000g/m², 1200g/m²;
- Thickness: approx. 0.6–1.0 mm;
- Colors: dark blue, forest green, black (to inhibit algae growth);
- Roll width: 1.5m, 2.0m, 3.2m (heat-weldable for seamless joints).
3. Key Specifications
- Tensile strength: ≥2500 N/5cm (warp & weft);
- Hydrostatic resistance: ≥0.3 MPa;
- Operating temperature: -30°C to +70°C;
- Service life: 5–8 years (under outdoor exposure).
4. Typical Dimensions
- For round tank (e.g., Φ6m × H1.2m): approx. 28–30 m² unfolded area;
- For rectangular tank (e.g., 4m × 6m × 1.2m): approx. 30–35 m²;
- Delivery: Pre-cut as one piece or in panels with overlap edges for on-site heat welding.
5. Installation
Lay the fabric liner inside the assembled galvanized steel tank, ensuring smooth bottom and snug corners. Overlapping seams are sealed with a hot-air welder using double-track welding for watertight integrity. The top edge is secured to the tank rim with clamping strips or metal bands. Inspect for punctures or weak welds before filling with water.