Deep Coating Control — Nearly 30 years of PVC coating process expertise ensures consistent weight, adhesion, and seam integrity across every roll of PVC Coated Tarpaulin shipped from our lines.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PVC Coated Tarpaulin |
| Base Fabric | High-strength polyester mesh fabric |
| Weight Options | 350gsm / 420gsm / 500gsm / 550gsm / 600gsm / 750gsm |
| Total Thickness | 0.32mm / 0.35mm / 0.4mm / 0.45mm / 0.5mm / 0.65mm |
| Coating Technology | Laminated technology & Hot-melt coating technology |
| Roll Size | 2m width × 75m length / 2.1m width × 50m length |
| Colour Options | Blue / Red / Yellow / Light blue / Grey (Customized) |
| Treatment Options | Flame retardant / Anti-static / Anti-cold / Anti-mildew / 3P |
| Key Features | Waterproof, sunproof, cold crack resistance, outstanding tearing strength for welding, best colour fastness |
| Standards | ISO, CE |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Fish pond and aquaculture tank liner | Permanent water immersion, soil chemistry contact, puncture risk from substrate, long-term UV exposure on exposed edges |
| Agricultural reservoir liner | Standing water retention, algae and mildew environment, seasonal temperature fluctuation |
| Tent and temporary structure cover | Wind loading, repeated assembly flexing, rain and sun exposure |
| Truck awning and cargo ship cover | Road salt, abrasion at contact points, flexing under load movement |
| Pool cover and water containment | Chlorine or saltwater exposure, UV degradation on surface, tension at anchor points |
Why Coating Adhesion Matters More Than GSM for Pond Liners
A heavier fabric is not automatically a longer-lasting pond liner — the bond between coating and base fabric determines whether the material holds water or delaminates at the seam.
Many aquaculture operators specify PVC coated tarpaulin for pond construction based on weight alone, assuming that a higher GSM guarantees durability in continuous water contact. In practice, the failure point is rarely the fabric tearing — it is the coating separating from the polyester mesh at welded joints or fold lines where the liner conforms to the pond floor. Without strong adhesion between layers, even a 750gsm roll will develop pinhole leaks within a single season. [NEED_CITE: adhesion peel strength testing methods for PVC coated fabrics per ISO 1421]
Hot-Melt Coating and What It Means for Weld Integrity
When pond liner panels are joined using high-frequency or hot-air welding, the seam must carry the same hydrostatic pressure as the field of the fabric. Hot-melt coating technology bonds the PVC layer to the polyester mesh at a molecular level, creating a coating-to-yarn adhesion that resists peel forces during welding. This means the weld line retains structural continuity rather than becoming the weakest point in the installation. For large aquaculture ponds where dozens of panels are joined, this adhesion quality directly determines whether the liner holds or requires costly mid-season repair.
Colour Consistency Across Rolls in a Single Installation
Pond liners covering large surface areas are often visible from above, particularly in ornamental or recreational water features. When multiple rolls are laid side by side, even slight colour variation between batches creates visible striping that undermines the finished appearance. Our PVC Coated Tarpaulin for pond and tank applications is produced with colour reference confirmation before each run, ensuring roll-to-roll consistency within the same order. This matters for projects where the liner is partially exposed or where multiple ponds on one site must match visually. [NEED_CITE: colour fastness measurement standards for coated textiles]
Reading the Specification Sheet Beyond Weight
GSM tells you how much material is present per square metre, but it does not tell you how that weight is distributed between the base fabric and the coating layers. A 500gsm PVC coated tarpaulin with a dense, high-tenacity polyester mesh and thin coating will resist tearing differently than one with a lighter mesh and thicker coating — yet both read as 500gsm on the quotation. Total thickness correlates more closely with puncture resistance against sharp substrate, while base fabric denier and weave density govern tensile and tear strength. Hot-melt coated fabric typically shows higher peel strength values than laminated equivalents, which translates to better weld performance but may carry a higher unit cost. Available in flame retardant and anti-static grades — confirm the grade required for your market before ordering.
The Hidden Cost of Specifying Without Adhesion Data
Operators who purchase pond liner based on weight and price alone frequently encounter two failure modes: delamination at folds where the liner meets the pond wall, and weld seam failure under hydrostatic pressure. Both originate from insufficient coating-to-fabric adhesion rather than inadequate GSM. A liner that fails at the weld requires draining the pond, cutting out the damaged section, and re-welding — a process that disrupts stock, wastes water, and often voids any remaining warranty. Colour variation between rolls, if not caught before installation, forces either acceptance of a striped appearance or a full replacement order with additional lead time and freight cost. [NEED_CITE: common failure modes in flexible pond liner installations]
Why Source This PVC Coated Tarpaulin Here
Three full production lines and 36 sets of professional equipment support consistent output across GSM grades, meaning your 500gsm pond liner order is produced on dedicated coating lines rather than squeezed between incompatible product runs. A 10-person R&D team handles custom colour matching, width specification, and sample development within days, not weeks. Every roll undergoes dedicated QA/QC inspection at each production stage with 100% pre-shipment verification — weight, colour, and adhesion are checked against your order specification before packing. Custom widths and lengths are produced without prohibitive minimums, so aquaculture projects of varying scale can be supplied from the same quality-controlled source. Documentation including material specification sheets and pre-shipment inspection records accompanies each consignment, giving your procurement team traceability from order to delivery.
Documentation & Verification
- Material specification sheet stating GSM, base fabric type, and coating method for each roll
- Weight verification per roll against the stated GSM before dispatch
- Colour reference confirmed and documented before production begins
- Test report for flame retardant or anti-static treatment where applicable to your order
- Pre-shipment inspection record with 100% inspection before packing
- Roll packing list and certificate of origin included for customs clearance
Fabrication, Handling & Storage
- Hot-air welding at recommended temperature and speed settings suits both laminated and hot-melt coated grades for pond panel joining
- Store rolls upright on pallets in shaded, ventilated areas to prevent compression creasing on the PVC surface
- Allow cold-stored rolls to reach ambient temperature before unrolling to avoid cracking in anti-cold treated grades
- Cut panels with clean blades to prevent fraying at edges before welding seams for pond construction
- Clean installed liner surfaces with mild detergent only — avoid solvents that degrade the PVC coating bond
- Plan panel layout from available 2m or 2.1m roll widths to minimise the number of weld seams in the finished pond
What to Include in Your Enquiry
To receive an accurate specification and lead time for your PVC coated tarpaulin pond liner project, provide the required GSM grade, total pond surface area or panel dimensions, and the colour reference for your installation. If your market requires flame retardant or anti-static certification, state the applicable standard so we can confirm grade availability. Specify whether you need full roll stock for on-site fabrication or cut-to-size panels with welded seams, and indicate your expected annual volume for pricing tier assessment.
Frequently Asked Questions
Q: How is the GSM verified before shipment to match the quotation?
A: Each roll is weighed and measured during our 100% pre-shipment inspection process. The actual GSM is recorded on the inspection report and compared against the specification stated on your purchase order. Rolls that fall outside the agreed tolerance are held and replaced before dispatch, ensuring the PVC coated tarpaulin you receive matches the weight you paid for.
Q: Can I receive a sample roll before committing to a full production order?
A: Yes. Our R&D team produces sample rolls in your required colour, GSM grade, and coating type within days. You can test weld performance, colour appearance, and flexibility under your local conditions before approving the specification for bulk production. This step eliminates surprises when the full order arrives on site.
Q: What welding method is recommended for joining pond liner panels?
A: Both high-frequency welding and hot-air welding produce strong seams on our PVC coated tarpaulin fabric. Hot-melt coated grades typically show superior peel strength at the weld line due to deeper coating-to-yarn bonding. We recommend conducting a test weld on a sample piece to dial in temperature and travel speed before joining panels in the field.
Q: Is flame retardant or anti-UV treatment backed by a test report?
A: Where flame retardant or anti-static treatment is specified on your order, we provide the corresponding test report with the shipment documentation. For UV resistance, we recommend confirming the specific test standard required by your local regulations or project specification so we can supply the correct grade and supporting data.
Q: What is the minimum order for a custom width or colour?
A: Custom widths and colours are available without prohibitively high minimums, as our production lines support flexible batch sizing. Provide your required width, length, and colour reference along with expected order frequency, and we will confirm lead time and production feasibility for your PVC Coated Tarpaulin specification.
