Description
Batch-Verified Roll Stock — Every roll is weighed and measured before dispatch so the GSM on the invoice matches the fabric that arrives at your warehouse.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PVC Coated Tarpaulin |
| Base Fabric | Polyester |
| Yarn Count | 1000D×2000D (900 GSM grade) |
| Mesh Density | 30×15 (900 GSM grade) |
| Thickness | 0.65mm (900 GSM grade) |
| Weight | 900 GSM (other grades from 350 to 900 GSM available — confirm grade required) |
| Tensile Strength Warp | 3900 N |
| Tensile Strength Weft | 3500 N |
| Coating | Double-sided PVC |
| Surface | Smooth with leather-like texture |
| Water Resistance | Fully waterproof coated construction |
| Flame Retardant | Available — confirm the grade required for your market |
| Anti-UV | Available — confirm the treatment and test basis for your application |
| Repairability | Hot air weldable |
| Certifications | ISO, CE |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Fish pond lining | Permanent water immersion, hydrostatic pressure, puncture from substrate stones and root systems |
| Aquaculture shrimp tanks | Saline or treated water, frequent drainage and refilling, chemical exposure from feed and disinfectants |
| Reservoir and dam liners | Large surface area, UV exposure on exposed edges, thermal expansion and contraction across seasons |
| Water containment berms | Abrasion from flowing water, mechanical stress during installation over uneven ground |
| Agricultural irrigation ponds | Seasonal filling cycles, algae and biological growth contact, sediment accumulation |
Why Roll-to-Roll GSM Consistency Matters More Than the Quoted Number
A quoted GSM only matters if every roll in the container actually delivers it.
Pond liner distributors and aquaculture fabricators have seen this pattern: the specification sheet says 900 GSM, but two or three rolls in the shipment arrive lighter, thinner, and softer than the rest. Once unrolled side by side on-site, the difference is visible — the lighter panels flex more under water load, and the weld seams on those panels are the first to show stress. This is not a theoretical risk. Batch variation across rolls is a recurring complaint in coated fabric procurement [NEED_CITE: ISO 1421 tensile and tear test methods for coated fabrics].
For a PVC coated tarpaulin roll wholesale pond liner order filling a 40-foot container, even a small per-roll weight deviation compounds into square metres of underperforming liner. The buyer absorbs the cost in warranty claims and liner replacement on projects where the pond is already filled.
Container-Ready Packing That Protects Coating Integrity
Rolls of PVC coated tarpaulin destined for pond and reservoir liner applications ship in configurations that protect the coated surface during ocean transit and overland transport. The smooth, leather-like surface is susceptible to pressure marks if rolls are stacked without separation or stored flat for extended periods before fabrication. Roll packing maintains the curvature of the coated fabric, while bale packing and carton options serve smaller consignments or pre-cut panels.
For buyers sourcing PVC coated tarpaulin roll wholesale pond liner stock in full-container volumes, the packing list specifies roll weight and dimensions so loading plans can be calculated before the container is stuffed, avoiding last-minute rearrangement that risks coating damage.
Colour and Thickness Uniformity Across the Full Shipment
When pond liner panels are welded together on-site, any variation in colour or thickness between adjacent rolls becomes immediately visible — and more critically, it affects weld parameters. A roll that runs slightly thinner requires different hot air temperature and pressure to achieve the same seam strength as a roll running at full spec.
Fabricators lining large aquaculture facilities or multi-cell reservoir projects need assurance that all rolls from one production batch behave identically under the weld head. This PVC coated tarpaulin roll wholesale pond liner supply addresses that requirement through in-process quality checks at each coating stage, with a pre-shipment inspection record documenting weight and visual consistency per roll [NEED_CITE: batch-to-batch colour tolerance standards for PVC coated textiles].
How Denier, Density and Coating Weight Interact to Define Pond Liner Performance
The 1000D×2000D polyester base fabric at 30×15 mesh density provides the structural skeleton that carries tensile and tear loads, while the PVC coating on both sides supplies waterproofing, UV shielding and the surface properties needed for welding. At 900 GSM and 0.65mm total thickness, the coating adds substantial mass that resists puncture from sharp substrate elements beneath the liner — stones, compacted clay fragments, or exposed root systems that are common in excavated pond beds.
The warp tensile strength of 3900 N and weft strength of 3500 N indicate the load the base fabric can carry before rupture. In pond liner service, these values matter most during installation, when the fabric is dragged across the pond floor, pulled into corners, and temporarily tensioned before being anchored and backfilled. A higher denier in the weft direction (2000D versus 1000D warp) reflects the design choice to orient greater strength across the roll width, which is typically the direction of hydrostatic load in wide pond installations.
The double-sided PVC coating method ensures both the top and bottom surfaces contribute to puncture resistance and waterproofing. This matters for pond liners where the underside contacts the substrate and the top side faces the water column — both surfaces are working surfaces.
The Hidden Cost of Specifying the Wrong Grade for Your Pond Application
Selecting a lighter GSM grade for a pond that will see heavy installation traffic, sharp substrate, or deep water columns leads to liner failure that is expensive to remedy once the pond is filled and stocked. The cost of draining a pond, removing the failed liner, preparing the bed again, and installing replacement material dwarfs the saving from specifying a lighter grade [NEED_CITE: aquaculture pond liner failure analysis and replacement cost].
Flame retardant treatment claimed without a supporting test certificate creates a different risk: if the local authority having jurisdiction requires documented flame performance for lined structures near buildings or electrical installations, the absence of a verifiable grade halts the project at inspection. Similarly, anti-UV treatment stated without a test basis means the liner may degrade under sustained tropical sunlight faster than the project design life requires, leaving the aquaculture operator facing premature liner replacement.
Why Source Roll Stock Through This Supply Chain
Three full production lines and 36 sets of professional equipment provide the throughput capacity to fill container-volume pond liner orders without extending lead times to accommodate smaller buyers. The 10-person R&D team supports custom width, colour and sample development, enabling distributors to stock non-standard roll widths that match their local market’s pond dimensions without forcing fabricators to trim and waste material.
Dedicated QA/QC at every production stage, with 100% pre-shipment inspection, means roll weight and visual quality are documented before the container is sealed — not discovered on arrival. Custom samples are developed within days, allowing buyers to verify coating hand-feel, colour and weld behaviour before committing to a production run. Nearly 30 years of process control over coating weight and adhesion translates into the batch-to-batch consistency that pond liner fabricators need when they repeat orders months later.
Documentation & Verification
- Material specification sheet stating base fabric denier, coating method and verified GSM for each roll grade supplied
- Pre-shipment inspection record with per-roll weight verification against the quoted 900 GSM or confirmed alternative grade
- Roll packing list detailing weight, dimensions and roll count for container load planning and receiving check
- UV and flame retardant test reports supplied where treatment grades are specified — request at inquiry stage
- Certificate of origin and customs documentation included for cross-border pond liner shipments
Fabrication, Handling & Storage
- Hot air welding at parameters matched to 0.65mm thickness — test weld settings on a sample from each new roll before production seams
- Store rolls upright on pallets to prevent flat-set creasing in the PVC coating surface
- Unroll in ambient temperatures above 10°C to avoid coating stiffness and surface cracking during handling
- Clean the smooth leather-like surface with mild detergent only — solvents may soften the PVC coating
- Overlap seams by a minimum of 50mm and weld both sides for pond liner corners where hydrostatic load concentrates
- Plan cut layouts to minimise transverse welds across the pond floor where sediment load is heaviest
What to Include in Your Pond Liner Inquiry
To receive an accurate specification recommendation and quotation, provide the intended application — fish pond, shrimp tank, reservoir or other water containment — along with the depth of the water column and the substrate conditions. Specify the roll width and length you require, the annual volume, and whether you need pond liner stock in a standard grade or a custom colour. If your local regulations require flame retardant or anti-UV certification, state the standard your market demands so the correct grade and test documentation can be included from the start.
Frequently Asked Questions
Q: How is GSM verified per roll before shipment, and can I request a weight certificate?
A: Every roll is weighed during the pre-shipment inspection, and the actual GSM is recorded against the specification. A weight verification document is included with the shipment showing per-roll values. You can request this format at the inquiry stage so it matches your receiving procedure.
Q: What roll widths and lengths are available, and how do they affect container loading?
A: Rolls are produced in widths and lengths to suit your pond liner fabrication requirements. The packing list provides roll dimensions and weight so container loading plans can be calculated in advance, maximising the number of rolls per container while protecting the coated surface during transit.
Q: Is batch-to-batch colour and thickness consistency guaranteed across large orders?
A: Production quality checks at each coating stage control thickness and colour within each batch. The pre-shipment inspection record documents visual consistency across all rolls. For repeat orders, provide a colour reference from your original sample so the new batch is matched to it.
Q: What is the MOQ for custom widths or colours on pond liner grades?
A: Custom widths and colours are available across the GSM range. Minimum order quantities depend on the specific grade and colour requested. Provide your required width, colour reference and estimated annual volume at inquiry so the production team can confirm the applicable minimum and lead time.
Q: Do you provide test reports for UV and flame retardant claims, and which standards apply?
A: Where flame retardant or anti-UV treatments are specified, test reports documenting the applicable grade and standard can be supplied. State the performance standard your project or local authority requires at the inquiry stage so the correct treatment grade is selected and documented.
