Description
Roll-to-Roll Consistency — Coating weight and pigment dispersion controlled at every stage, verified per roll before packing for container loading.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PVC Fish Pond |
| Material | PVC & Polyester |
| Yarn Count | 500D×500D / 500D×840D / 500D×1000D / 1000D×1000D / 1000D×1300D / 1300D×1300D / 1000D×2000D |
| Density | 30×19 / 20×20 / 30×15 |
| Thickness Range | 0.29 mm to 0.65 mm |
| Weight Range | 350 GSM to 900 GSM |
| Tensile Strength (Warp) | 1650 N to 3900 N (test standard not stated in source) |
| Tensile Strength (Weft) | 1600 N to 3500 N (test standard not stated in source) |
| Flame Retardant | Available in flame retardant grades — confirm the grade required for your market |
| UV Treatment | Available with anti-UV treatment — request test basis for your application |
| Waterproof | Water resistant / waterproof construction |
| Standards | ISO and CE certified production (per company profile) |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Commercial aquaculture ponds | Permanent water contact, aquatic chemistry exposure, UV degradation from continuous outdoor sun |
| Hatchery and nursery tanks | Precise water containment, abrasion from aeration equipment, frequent draining and refilling |
| Agricultural water reservoirs | Soil chemistry interaction, puncture risk from ground debris, seasonal temperature cycling |
| Irrigation storage ponds | Large surface area exposure, wind uplift stress at edges, long-term water immersion |
Why GSM Alone Does Not Guarantee Pond Liner Longevity
Quoted GSM that does not match the roll you receive undermines your entire pond installation. A specification sheet stating the exact GSM per grade, backed by pre-shipment weight verification, is the only way to confirm what arrives matches what was agreed.
I have spoken with aquaculture operators who ordered PVC tarpaulin roll wholesale lots for pond construction only to find the delivered material noticeably lighter than the quoted grade. The liner sagged at the seams within weeks. When water load concentrates at the welded joints, underweight fabric has no reserve strength to handle the stress. The failure point is rarely the open field of the fabric — it is almost always where the seams carry the load [NEED_CITE: tensile and tear test methods for coated fabrics per ISO 1421]. Batch-consistent GSM across every roll in your order is the baseline for a pond that holds water season after season.
Coating Integrity for Continuous Water Immersion
A fish pond liner sits in permanent contact with water, aquatic treatments, and dissolved organics. The PVC double-sided coating on a polyester base fabric must maintain adhesion under these conditions without delaminating or softening. Our coating process controls the bond between the PVC layer and the base yarn at every grade in the 350 GSM to 900 GSM range. The polyester base provides dimensional stability so the liner does not stretch or distort once filled. For wholesale buyers sourcing PVC tarpaulin roll wholesale volumes for pond fabrication, consistent coating adhesion across rolls means predictable heat-welding behaviour during pond assembly.
Welded Seam Performance Under Hydrostatic Load
Water exerts constant outward and downward pressure on every seam in a pond liner. The welded joints must hold at least as long as the field fabric. Our production line adjusts weld temperature and dwell time to match each grade — a 0.29 mm material requires different parameters than a 0.65 mm material. When the weld temperature is too low, the seam peels apart under load; too high and the base fabric weakens at the heat-affected zone [NEED_CITE: hot-air weld parameters and peel strength for PVC coated polyester]. Fabricators working with multiple grades from the same PVC tarpaulin roll wholesale shipment need this consistency to set welding jigs once and run without constant adjustment.
How Yarn Denier and Mesh Count Define Liner Strength
The base fabric determines how the pond liner resists puncture from stones, roots, and aeration hardware beneath the water surface. A 500D×500D yarn at 30×19 mesh count provides adequate strength for shallow nursery tanks, while a 1300D×1300D construction delivers substantially higher resistance to tear propagation for large commercial ponds with deeper water columns. The mesh count controls how many yarns share each load point — a denser weave distributes puncture force across more filaments, reducing the chance that a single sharp object initiates a tear. Tensile strength values from 1650 N to 3900 N in the warp direction reflect this progression across the available grades. For pond fabricators, selecting the correct denier and mesh combination prevents overspending on heavy grades for low-stress applications or under-specifying for ponds that face significant hydrostatic and mechanical loads.
The Cost of Wrong Specification in Pond Installations
A pond liner specified too light for its water depth will stretch under hydrostatic load, pulling the welded seams open at the corners where stress concentrates. Colour variation between rolls in a multi-pond installation becomes immediately visible once the ponds are filled and operating side by side — a problem that cannot be fixed without replacement. Anti-UV treatment claimed on paper but unsupported by a test result leads to surface cracking and embrittlement after one or two seasons of direct sun exposure [NEED_CITE: UV degradation mechanisms in PVC coated fabrics for outdoor containment]. These failures do not appear on day one; they surface weeks or months into operation, after fish stock is already in the water and the cost of draining, replacing, and restocking far exceeds the savings from choosing a cheaper grade.
Why Buyers Source Pond Liner Rolls Through This Line
Nearly three decades of focus on PVC coated fabric means the coating weight and base fabric adhesion are controlled through deep process knowledge, not guesswork. Three full production lines and 36 sets of professional equipment support the volume that wholesale distributors and aquaculture contractors need without extended delays. A 10-person R&D team handles grade selection, custom sizing, and sample development so your pond dimensions are confirmed before bulk production runs. Dedicated QA and QC at every production stage catches weight deviation, colour drift, and coating defects before any roll leaves the factory — 100 percent inspection before shipment is standard procedure. Samples for custom pond configurations are developed within days, letting you verify material behaviour before committing to a full container load.
Documentation & Verification
- Material specification sheet stating GSM, base fabric denier, and coating type for each roll grade
- Pre-shipment inspection record confirming weight and visual quality per roll
- Roll packing list with grade, colour, and specification matched to your purchase order
- UV and flame retardant test reports where applicable to your market requirements
- Certificate of origin and customs documentation for international shipment clearance
Fabrication, Handling & Storage
- Heat-weld seams at temperatures matched to the specific grade thickness, from 0.29 mm to 0.65 mm
- Store rolls upright on pallets to prevent flat-spot deformation of the PVC coating surface
- Allow cold-weather rolls to acclimate to ambient temperature before unrolling to avoid coating crack
- Use sharp blades for cutting to prevent yarn fraying at the edge of the polyester base fabric
- Clean pond surfaces with mild detergent — harsh solvents can attack the PVC coating layer
- Plan cutting patterns to minimise offcut waste across the available roll widths and lengths
What to Include in Your Inquiry
Provide your pond dimensions, water depth, and whether the installation is circular, rectangular, or irregular so the correct denier grade can be recommended. Confirm the climate zone and expected UV exposure duration so the appropriate treatment level is selected. Specify the quantity of ponds or the total liner area, along with colour requirements and any custom sizing beyond standard roll dimensions. State whether you need finished pond liners with welded seams or raw PVC tarpaulin roll wholesale stock for in-house fabrication.
Frequently Asked Questions
Q: How can I verify the GSM matches what was quoted before my shipment arrives?
A: Every roll ships with a material specification sheet stating the exact GSM. Our pre-shipment inspection record documents weight verification per roll before dispatch. You may also request sample cuts from your production batch to conduct independent GSM testing against the agreed specification before the container reaches your facility.
Q: Do you supply test reports for anti-UV and flame retardant treatments?
A: UV and flame retardant test reports are available for grades that carry these treatments. Specify the test standard or certification your market requires — such as a specific UV exposure duration or fire classification — so we can confirm the grade and provide the corresponding documentation with your shipment.
Q: What is the minimum order for custom colour and width on wholesale roll orders?
A: Minimum quantities for custom colour and width depend on the selected denier grade and coating weight. Standard grades ship in bulk with lower minimums, while custom colours require a dedicated production run. Submit your target colour reference and roll dimensions so we can quote the applicable minimum and lead time.
Q: How do you maintain colour consistency across multiple rolls in one order?
A: Pigment dosing and coating parameters are locked to a single batch reference for your entire order. Every roll undergoes visual inspection against the approved colour standard during the pre-shipment QA check. Rolls that fall outside the accepted tolerance are held back before packing, ensuring uniform appearance across all ponds installed side by side.
Q: What documentation accompanies the shipment for customs and quality purposes?
A: Each shipment includes a material specification sheet, pre-shipment inspection record, roll packing list, certificate of origin, and applicable test reports. Customs documentation supports export clearance. This documentation package lets you verify every roll against your purchase order upon arrival.
