Description
Roll-to-Roll Consistency — every PVC Tarpaulin Fish Pond Liner roll is weighed and inspected for coating uniformity before dispatch, ensuring bulk buyers receive verified GSM across the entire shipment.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | Pond Liner |
| Material | PVC & Polyester |
| Yarn Count | 500D-500D |
| Thickness Range | 450-900 g/m² |
| Key Features | Water Resistant, Flame Retardant (grade not stated in source), Waterproof, Anti-UV (test basis not stated in source) |
| Service Life | 3-5 years (manufacturer stated) |
| Repairability | Repairable by hot air welding |
| Surface Characteristics | Smooth and soft surface with a leather-like texture |
| Standards | ISO, CE |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Aquaculture pond tanks | Permanent water contact, constant hydrostatic pressure, puncture risk from substrate |
| Fish farming operations | Continuous UV exposure, bio-fouling resistance, long-term water containment |
| Agricultural water storage | Seasonal temperature swings, soil chemistry interaction, mechanical abrasion |
| Shrimp farming | Saline water exposure, high stocking density, frequent cleaning cycles |
| Irrigation reservoirs | Extended sun exposure, wind-induced flexing, sediment load abrasion |
Why GSM Verification Matters More Than the Number Itself
Weight on paper means nothing if the roll on the dock is lighter than quoted.
When sourcing PVC Tarpaulin Fish Pond Liner material by the roll, buyers frequently encounter a gap between the stated GSM and the actual coating weight received. A pond liner specified at a given thickness can arrive underweight, compromising tensile stability under water load and accelerating failure at welded seams. This is not a rare occurrence — it ranks among the most common complaints in bulk coated fabric procurement. [NEED_CITE: common causes of coated fabric specification disputes in international trade] The consequence for aquaculture operators is direct: a liner that cannot hold the designed water column, leading to costly mid-cycle pond failure and stock loss.
Batch Consistency Across the Full Shipment
Pond construction projects often span multiple tanks or reservoirs installed side by side. When PVC Tarpaulin Fish Pond Liner rolls vary in coating weight or colour between batches, the differences become visible once the material is unrolled and positioned adjacent to earlier deliveries. Our production lines maintain coating parameters within controlled tolerances, and each roll is documented with its verified weight before packing. This approach prevents the visual mismatch and performance inconsistency that disrupt large-scale aquaculture installations.
Coating Adhesion and Weld Integrity in Wet Environments
The double-sided PVC coating over a 500D-500D polyester base provides the adhesion foundation necessary for heat-welded seam construction. Stitched seams create needle holes that become leak paths under hydrostatic pressure — a failure mode well documented in water containment applications. [NEED_CITE: seam failure mechanisms in flexible water containment liners] Heat welding fuses the PVC coating layers directly, producing a joint that matches the parent material’s waterproof integrity and resists separation when the pond flexes under changing water levels.
Reading the Specification Sheet Beyond the Weight Number
The 450-900 g/m² range offered across this product family reflects different deployment scenarios. Lighter grades within the range suit shallow, temporary aquaculture tanks where the hydrostatic load is modest and portability matters. Heavier grades are selected for deep, permanent fish ponds where substrate puncture risk and long-term tensile demand are higher. The 500D-500D polyester yarn count provides the dimensional stability that prevents the fabric from stretching or distorting once filled — a property that pure weight figures alone cannot communicate. The leather-like surface texture reduces friction during handling and deployment while providing a substrate that accepts hot air repair patches without delamination. Surface finish selection also influences how easily bio-fouling accumulates and how effectively the liner can be cleaned between farming cycles.
What Specification Shortcuts Cost in the Field
Selecting a pond liner based on price per roll without verifying coating weight, adhesion strength, and UV treatment basis leads to predictable field outcomes. Liners that arrive lighter than specified develop thin spots that puncture under substrate pressure. Coating that delaminates from the base fabric exposes the polyester yarn to water ingress, accelerating degradation and destroying the material’s waterproof function. [NEED_CITE: field failure patterns in PVC-coated pond liners used for aquaculture] UV treatment claimed without supporting test data leaves the surface vulnerable to embrittlement after sustained sun exposure, producing cracking at fold lines and weld seams long before the expected service period ends.
Why Buyers Source Pond Liner Roll Stock Here
Every roll of PVC Tarpaulin Fish Pond Liner passes through dedicated QA checkpoints where coating weight is measured and recorded against the purchase specification. The 10-person R&D team develops custom widths and lengths with sample turnaround measured in days rather than weeks, supporting aquaculture projects on tight construction schedules. Three full production lines equipped with 36 sets of professional equipment provide the capacity to fulfil container-quantity orders within typical multi-week lead times for custom specifications. Material specification sheets accompany each order, documenting the exact GSM, base fabric denier, and coating type so that buyers can verify what was quoted against what arrived. Pre-shipment inspection records are compiled per roll, not per batch, giving procurement teams traceability down to individual units.
Documentation & Verification
- Material spec sheet listing GSM, 500D-500D base fabric denier, and PVC coating type
- Pre-shipment inspection record confirming verified coating weight per roll
- UV test report available upon request for outdoor exposure validation
- Roll packing list detailing roll count, individual weight, and container loading plan
- ISO and CE certificates included with export documentation package
Fabrication, Handling & Storage
- Hot air welding at controlled temperature fuses the PVC coating without scorching the 500D polyester base
- Store rolls upright on pallets to prevent flat-spot deformation of the leather-textured coating surface
- Avoid dragging rolls on abrasive ground during deployment to protect the smooth PVC outer layer
- Clean with mild detergent — harsh solvents may compromise the PVC coating adhesion to the base fabric
- Repair punctures on-site using hot air welding with matching PVC patch material from offcuts
- Unroll in moderate temperatures; cold-stiffened PVC requires gradual warming before unfolding to prevent crease cracking
What to Provide with Your Inquiry
Specify the pond dimensions, water depth, and substrate type so that the appropriate grade within the thickness range can be recommended. Indicate whether rolls are required in stock widths or if custom widths are needed to minimise field welding and seam count. Confirm your market’s UV exposure requirements and any compliance documentation needed at the port of entry. State the quantity in rolls and the target delivery window to allow production scheduling.
Frequently Asked Questions
Q: How is GSM verified on each roll before shipment?
A: Each roll of PVC Tarpaulin Fish Pond Liner is individually weighed and measured during the pre-shipment inspection stage. The verified coating weight is recorded against the quoted specification and documented in the inspection record that accompanies the shipment. Rolls that fall outside tolerance are flagged and replaced before container loading.
Q: What anti-UV test basis supports outdoor pond liner longevity?
A: Anti-UV treatment is applied during the coating process to address continuous sun exposure typical in aquaculture environments. The specific test basis and exposure rating are available upon request — buyers should confirm the UV standard required by their end-use market or regulatory authority before placing the production order.
Q: How do you control colour and coating consistency across rolls in one order?
A: Production parameters including coating thickness, colour formulation, and line speed are locked for the full batch run. In-process quality checks monitor coating uniformity across the web width. This ensures that multiple rolls within a single PVC Tarpaulin Fish Pond Liner order match visually and perform consistently when installed in adjacent ponds.
Q: What roll widths and lengths are available for pond liner applications?
A: Stock widths are available alongside custom width options to suit specific pond dimensions and reduce on-site welding. Roll lengths can be specified based on project requirements. Provide your pond layout and liner panel dimensions during inquiry so the optimal roll configuration can be calculated for material utilisation and container loading efficiency.
Q: What certifications accompany pond liner roll stock for export?
A: Each shipment includes ISO and CE certificates alongside the certificate of origin, customs documentation, and the roll packing list. Additional compliance documents can be prepared based on destination market requirements — specify any particular certification needs during the quotation stage to ensure preparation before dispatch.
