Description
Roll-Stock Consistency — every roll of PVC tarpaulin pond liner ships with verified coating weight and batch-matched colour, backed by 100% pre-shipment inspection across three dedicated production lines.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PVC Fish Pond Liner |
| Base Fabric | Polyester, 500D×500D yarn count |
| Coating Material | PVC, double-sided coated |
| Surface Finish | Smooth, leather-like texture |
| Weight Range | 450–900 g/m² (confirm required GSM at inquiry) |
| Water Resistance | Fully waterproof coated construction |
| Anti-UV Treatment | Available — confirm grade required for your market |
| Flame Retardant | Available — confirm certification required for your market |
| Welding Method | Hot-air weldable, integrated pressing with no stitching |
| Repairability | Field-repairable by hot air welding |
| Certifications | ISO, CE |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Aquaculture fish ponds | Permanent water contact, biological load, soil chemistry, puncture risk from substrate |
| Foldable aquaculture pond tanks | Repeated folding and unfolding, flex stress at panel joints, abrasion at frame contact points |
| Water reservoirs and storage ponds | Long-term UV exposure, temperature fluctuation, wind-driven debris impact |
| Agricultural water containment | Seasonal deployment, chemical exposure from fertiliser runoff, mechanical damage during installation |
Why GSM Figures Alone Leave Pond Liner Buyers Exposed
A quoted GSM number without a verified inspection record is just a promise — every roll we dispatch carries documented weight proof.
When PVC tarpaulin pond liner arrives lighter than the specification sheet stated, the consequences are rarely visible until the pond is filled. Thinner coating at the seams, reduced puncture resistance against rocky substrates, and accelerated UV degradation all trace back to coating weight that fell short of what was agreed. Buyers who specify PVC Tarpaulin Fish Pond Liner wholesale frequently discover the shortfall only after the liner has been welded, filled, and stocked — at which point the cost of replacement far exceeds the material savings [NEED_CITE: pre-shipment inspection standards for coated fabric roll stock per ISO 1421].
How Coating Weight Is Controlled Across the Roll
Consistent GSM starts at the coating head, not at the scale. The polyester base fabric passes through a controlled PVC coating process where knife-gap settings and line speed determine the wet coating thickness applied to each side. For pond liner grades in the 450–900 g/m² range, maintaining uniform coating weight across the full roll width is what separates a liner that holds water for years from one that develops pinhole leaks in its first season. Our three full production lines run dedicated coating passes, with in-process QA checks at intervals along the line to catch drift before it becomes a batch-wide problem.
Colour and Surface Consistency Across Bulk Orders
When tarpaulin distributors order multiple rolls of PVC Tarpaulin Fish Pond Liner wholesale for regional redistribution, roll-to-roll colour matching becomes a critical acceptance criterion. A visible shade difference between two adjacent rolls is immediately apparent once the material is unrolled and compared under daylight. We control pigment dosing at the compound mixing stage and maintain colour reference standards for every production run. Each order ships against a single master batch, so the hue, gloss level, and surface texture remain uniform from the first roll to the last [NEED_CITE: colour measurement methods for PVC coated textiles].
Reading the Specification Sheet Beyond the GSM Number
The 500D×500D polyester base fabric provides the structural backbone of this pond liner. Denier indicates yarn thickness — higher denier yarns resist puncture from sharp substrate stones and resist tear propagation if the liner is snagged during installation. However, denier alone does not determine strength: the weave density and the PVC coating adhesion to the yarn surface together define how the fabric performs under hydrostatic load. A tightly woven 500D base with strong coating bond will outperform a loosely woven heavier base when the pond is filled and the liner stretches against the ground contour. The double-sided PVC coating fully encapsulates each yarn, preventing water ingress into the fabric core and eliminating the delamination risk that can occur with single-sided or laminated constructions. Hot-air welding fuses the coating layers directly, producing seams that match the fabric body in strength — critical at the corners and drain fittings where stress concentrates.
The Hidden Cost of Specification Drift in Pond Liner Procurement
A roll that arrives two or three GSM points below the quoted weight may pass a casual visual check, but the deficit accumulates across an entire container load. Distributors who resell PVC Tarpaulin Fish Pond Liner wholesale to aquaculture operators face warranty claims when liners thin prematurely at high-stress zones — typically the bottom corners and the waterline fold. Flame retardant or anti-UV treatments claimed on paper but unsupported by a test report leave the end user exposed to compliance failures at the site inspection stage. Batch colour variation forces installers to reject otherwise sound material because it looks wrong beside the previous roll, creating waste and project delays [NEED_CITE: common failure modes in PVC coated pond liner installations].
Why Aquaculture Buyers Source Pond Liner Rolls Here
Our 10-person R&D team develops custom width and colour options within days, supporting distributors who need market-specific roll dimensions without waiting for full-container minimums. Dedicated QA/QC runs at every production stage, with 100% inspection before any roll leaves the facility — not a sampling protocol, but a full roll-by-roll check. Three production lines and 36 sets of professional equipment give us the capacity to fill container-volume orders within typical multi-week lead times while maintaining batch consistency. We supply PVC Tarpaulin Fish Pond Liner wholesale with the documentation trail that importers need: material specification sheets, packing lists with roll-level weight data, and certificates of origin prepared for the destination market.
Documentation & Verification
- Material specification sheet stating GSM, base fabric denier, and coating type per roll batch
- Pre-shipment inspection record with weight verification against stated GSM before dispatch
- Roll packing list with roll count, net and gross weight, and container loading plan
- Test reports for anti-UV and flame-retardant grades provided where applicable — request at inquiry
- Certificate of origin and customs documentation prepared per destination country requirements
Fabrication, Handling & Storage
- Hot-air weld temperature and speed must match the 450–900 g/m² coating weight to avoid cold or burnt seams
- Store rolls upright on pallets to prevent flat-spot deformation of the PVC coating surface
- Avoid dragging rolls on unsealed ground — the smooth leather-like finish scratches under abrasive contact
- Deploy liner in temperatures above freezing to prevent low-temperature stiffness and cracking at fold lines
- Repair field punctures using compatible PVC patch material and hot-air welding at the damage site
- Plan cutting layout to minimise offcuts, especially on custom-width rolls ordered for specific pond dimensions
Before You Request a Quote
Provide the target pond dimensions, substrate type, and whether the liner will be permanently installed or seasonally deployed and folded. Specify the GSM range you require and whether your market demands anti-UV or flame-retardant certification. Confirm the roll widths that suit your fabrication setup and the container volume you plan to order, so we can return accurate packing data and lead time with the quotation.
Frequently Asked Questions
Q: How is GSM verified per roll and what documentation ships with each batch?
A: Every roll is weighed and measured during pre-shipment inspection, and the result is recorded against the quoted GSM. A material specification sheet accompanies each batch, listing the base fabric denier, coating type, and verified weight. Distributors ordering PVC Tarpaulin Fish Pond Liner wholesale receive a complete roll packing list with individual roll weights.
Q: What roll widths and lengths are available, and what is the MOQ per grade?
A: Standard and custom widths are produced on our coating lines to match your fabrication or resale requirements. Minimum order quantities vary by GSM grade and whether a custom colour is requested. Contact our sales team with your target width, grade, and annual volume for a quotation that includes container loading data.
Q: How is batch-to-batch colour consistency controlled across a bulk order?
A: Pigment is dosed at the compound mixing stage against a master colour standard for each production run. All rolls in a single order are produced from the same batch compound, ensuring uniform hue and gloss. A colour reference is included in the shipment documentation for verification on arrival.
Q: What container loading data is provided at quotation stage?
A: Quotations include roll count per container, net and gross weight totals, and a loading plan based on the roll dimensions ordered. This allows wholesale buyers to calculate landed cost per roll and plan warehouse space before confirming the order.
Q: How are rolls packed for ocean freight to prevent coating damage in transit?
A: Rolls are packed in roll packing, bale packing, or carton formats depending on the grade and order size. Each roll is wrapped to protect the PVC coating surface from abrasion and moisture during transit, and loaded to prevent shifting or compression damage inside the container.
