Description
Bulk Roll Consistency — every PVC Pond Liner roll is checked against the stated GSM before dispatch, with pre-shipment inspection records provided per batch.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PVC Coated Tarpaulin |
| Material Composition | PVC & Polyester |
| Yarn Count Options | 500D840D / 500D1000D / 1000D1000D / 1000D1300D / 1300D1300D / 1000D2000D |
| Weight Options | 350 GSM / 400 GSM / 420 GSM / 500 GSM / 600 GSM / 650 GSM / 750 GSM / 900 GSM |
| Total Thickness Range | 0.29mm – 0.65mm |
| Fabric Density | 2020 / 3019 / 30*15 |
| Tensile Strength (Warp) | 1650N – 3900N (test standard not stated in source) |
| Tensile Strength (Weft) | 1600N – 3500N (test standard not stated in source) |
| Surface Finish | Smooth, leather-like texture |
| Key Features | Water Resistant, Waterproof, Anti-UV (test basis not stated), Flame Retardant (grade not stated) |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Commercial fish pond lining | Permanent submersion, soil abrasion, biological load from aquatic life |
| Aquaculture tank containment | Continuous water pressure, UV exposure on exposed edges, chemical resistance to feed and waste |
| Agricultural water reservoirs | Standing water, puncture risk from substrate, thermal expansion and contraction |
| Shrimp farming ponds | Saline water exposure, high UV, abrasion from aerator equipment |
Why Roll-to-Roll GSM Consistency Matters More Than the Number Itself
A quoted 650 GSM is only useful if every roll in the container actually weighs 650 GSM.
Buyers sourcing PVC Pond Liner roll stock for aquaculture projects frequently report that the material arriving on-site feels lighter than expected. The GSM stated on the quotation does not always match what is measured upon arrival, and even a small shortfall across a large order means the liner is thinner and weaker than the pond design requires [NEED_CITE: common industry practice for GSM tolerance in coated fabric supply]. This is not a matter of deception — it often reflects coating weight variation across production runs that goes unchecked without dedicated inspection at every stage.
Verifying Stock Grade Availability Across Weight Tiers
When purchasing PVC Pond Liner wholesale, the range of GSM grades determines which pond depths and substrate conditions you can address. Lighter weights such as 350 GSM and 400 GSM suit shallow nursery ponds with prepared bases, while 650 GSM and above are specified for deeper commercial grow-out ponds where water pressure and installation tension place higher demands on the base fabric. Having multiple grades in stock means distributors can serve diverse aquaculture clients from a single supplier relationship.
Maintaining Batch Uniformity for Multi-Roll Installations
Large-scale pond installations often require several rolls laid and welded side by side. Colour and surface consistency between rolls is critical — any visible variation becomes obvious once the liner is installed and filled. The PVC coating process must maintain uniform pigment dispersion and gloss level across the entire production run. For buyers purchasing PVC Pond Liner bulk quantities, requesting pre-shipment samples from multiple rolls within the same batch provides an early check on uniformity before container loading [NEED_CITE: coating batch consistency testing methods for PVC tarpaulin].
How Base Fabric Denier and Coating Weight Determine Liner Performance
The relationship between yarn count and PVC coating weight governs how the liner behaves under load. A 1000D1000D base fabric at 650 GSM provides higher tensile strength than a 500D840D base at the same weight, because the heavier denier yarns carry more of the structural load while the coating fills the weave and provides waterproof sealing. The fabric density — whether 2020 or 3019 — determines how tightly the yarns are woven, which directly affects tear propagation resistance. A tighter weave limits how far a puncture can spread before the adjacent yarns arrest it. Coating weight also influences heat welding behaviour: heavier PVC coatings require higher air temperature and slower travel speed to achieve full fusion at the seam, while lighter coatings weld faster but offer less abrasion resistance on the pond floor.
The Cost of Ordering the Wrong Specification for the Pond Environment
Specifying a light GSM for a deep commercial pond leads to liner failure under hydrostatic pressure — the material stretches beyond its tensile limit at the seams. Conversely, over-specifying weight for shallow nursery ponds increases material cost without improving containment performance. Mismatched flame retardant or anti-UV grades can also cause problems: if the local aquaculture authority requires a specific fire classification for covered ponds and the liner arrives without supporting test documentation, the installation cannot pass inspection [NEED_CITE: aquaculture facility compliance requirements for liner materials]. These errors are costly because the liner must be removed and replaced, disrupting the entire farming cycle.
Supply Capability for Wholesale Aquaculture Roll Orders
Three full production lines and 36 sets of professional equipment support large-volume roll orders with consistent throughput, reducing the risk of delayed shipment on bulk PVC Pond Liner wholesale purchases.
A 10-person R&D team develops samples within days when custom width or GSM is required, allowing buyers to confirm welding compatibility and colour match before committing to production.
Dedicated QA/QC at every production stage, with 100% inspection before shipment, ensures that each roll meets the quoted weight and thickness — not just a sample from the top of the batch.
Deep process control over coating weight and adhesion, built over nearly 30 years focused on coated fabric, means the PVC bonds to the polyester base consistently across the roll width.
Material specification sheets accompany every order, stating base fabric denier, coating weight, and colour reference so that buyers can verify the product matches their pond design requirements.
Documentation & Verification
- Material specification sheet listing base fabric denier, coating weight, and GSM per roll
- Pre-shipment inspection record confirming measured thickness and weight against order specification
- Roll packing list detailing roll count, dimensions, and net weight for container loading plans
- Test report for UV and flame-retardant grades where applicable — confirm the grade required for your market
- Certificate of origin and customs documentation for cross-border aquaculture supply chains
Fabrication, Handling & Storage
- Hot air welding temperature and speed must be adjusted to match the selected GSM — heavier grades such as 900 GSM require slower travel and higher heat for full seam fusion
- Store rolls upright on pallets in dry, shaded conditions to prevent the PVC coating from developing flat-spot creases that weaken the liner at fold lines
- When unrolling 0.55mm or thicker grades in cold conditions, allow the material to acclimatise before handling to avoid coating micro-cracking at low temperatures
- Cut rolls on a clean, flat surface free of sharp debris to prevent scoring the smooth leather-like surface before the liner is positioned in the pond
- Field repairs are achievable by hot air welding, matching the weld temperature to the specific coating weight of the roll in use
What to Include in Your Roll Stock Enquiry
To provide an accurate specification for your PVC Pond Liner bulk order, share the target pond depths, substrate conditions, and whether the liner will be exposed or covered. Specify the roll widths and lengths needed to optimise container loading, and indicate if you require finished cut sizes or raw roll stock only. If your market has specific fire or UV compliance requirements, state the grade so that the correct treatment can be confirmed with supporting documentation before production begins.
Frequently Asked Questions
Q: How can I verify the GSM of each roll when a bulk PVC Pond Liner order arrives?
A: Request the pre-shipment inspection record that lists measured weight per roll. On arrival, cut a measured sample from each roll, weigh it on a calibrated scale, and calculate GSM from the area. Any discrepancy from the quoted 350–900 GSM range should be reported immediately with photographic evidence for resolution.
Q: What roll widths and lengths are available for container loading optimisation?
A: Custom widths and lengths are available subject to minimum order quantities. Provide your target roll dimensions and container type so that the roll packing plan maximises load weight and volume. A detailed roll packing list is supplied before dispatch to confirm count and dimensions.
Q: Is colour consistency maintained across multiple rolls in one wholesale order?
A: All rolls within a single production batch use the same pigment formulation and coating parameters. Buyers are advised to request batch samples from multiple rolls before shipment to visually confirm colour uniformity, especially for large installations where rolls are welded side by side.
Q: Can this PVC material be heat-welded on-site to fit custom pond shapes?
A: Yes, the PVC coating is compatible with standard hot air welding equipment. Welding temperature and speed should be adjusted to the specific GSM grade — test a sample weld before full installation to confirm seam strength matches the parent material.
Q: What is the minimum order for custom width or thickness requirements?
A: Minimum order quantities apply to non-standard widths and GSM grades outside the stock range. Contact the sales team with your required specification, and a sample will be developed within days for your evaluation before bulk production is scheduled.
