Description
Bulk-Grade Consistency — Roll-to-roll weight and colour verified at every coating stage, so every PVC pool cover tarpaulin roll in your container arrives within tolerance.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PVC Coated Tarpaulin |
| Base Fabric | High-strength polyester mesh fabric |
| Coating Method | Laminated technology & Hot-melt coating technology |
| Weight (GSM) | 350gsm / 420gsm / 500gsm / 550gsm / 600gsm / 750gsm |
| Total Thickness | 0.32mm / 0.35mm / 0.4mm / 0.45mm / 0.5mm / 0.65mm |
| Roll Size | 2m × 75m / 2.1m × 50m |
| Finish Product Size | Custom cut or sold by inventory |
| Colour Options | Blue / Red / Yellow / Light blue / Grey (Customized) |
| Key Features | Waterproof, sunproof, cold crack resistance, anti-mildew, anti-static treatment (grade not stated), flame retardant available as special treatment (grade not stated), best color fastness |
| UV Treatment | Anti-UV (test basis not stated in source) |
| Service Life | 3–7 years under normal circumstances |
| Standards | ISO, CE |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Swimming pool covers | Constant UV and water contact, thermal cycling, chemical splash from pool treatment agents |
| Fish tank and aquaculture pool covers | Permanent water immersion, biological fouling, frequent handling during feeding and harvest |
| Tent and temporary structure covers | Wind load, rain pooling, UV exposure, repeated folding and transport |
| Cargo ship covers | Salt spray, heavy wind, abrasion from shifting loads, long-term outdoor storage |
| Truck awnings | Road vibration, flexing at mounting points, UV and weather exposure |
Why Roll-to-Roll Colour Drift Costs You More Than You Think
A visible colour shift across two welded panels is often rejected by the end buyer, forcing a full re-cut.
When importing a PVC pool cover tarpaulin roll by the container, the fabric may leave the factory looking uniform. Once the fabricator unrolls consecutive panels and places them side by side under workshop lighting, even a slight hue variation becomes obvious. The end customer sees it as a quality failure, not a production artefact, and the entire installation may be returned. Colour matching at the coating stage, not just at the mixing desk, determines whether your batch survives first inspection. [NEED_CITE: color fastness evaluation methods for coated textiles per ISO 105 series]
Container-Loading Efficiency Across Multiple GSM Grades
Stock roll widths of 2m × 75m and 2.1m × 50m are designed to fill a standard container by count and gross weight without dead space. Wholesale buyers consolidating a PVC pool cover tarpaulin roll order across several weight grades can fill one container with 350gsm stock for residential distributors and 600gsm stock for commercial contractors, keeping freight cost per square metre consistent.
Batch Colour Control from Pigment to Winding
Colour is set at the hot-melt coating stage, where pigment is metered into the PVC compound before it meets the polyester mesh. This means the PVC pool cover tarpaulin roll colour is locked into the coating itself rather than applied as a surface layer. Production-stage checks against the confirmed colour reference prevent drift across consecutive rolls, so panels cut from different rolls in the same order weld together without visible mismatch. [NEED_CITE: pigment dispersion standards in PVC plastisol for coated fabrics]
What Weight, Thickness and Coating Method Mean in Practice
The six available weight grades from 350gsm to 750gsm, with corresponding thickness from 0.32mm to 0.65mm, reflect increasing PVC coating mass on the same high-tenacity polyester base. Heavier coating adds puncture resistance and stiffness, which matters when the cover is pulled taut over a pool frame and subjected to standing water or snow load. Laminated and hot-melt coating technology produces strong adhesion between the PVC layers and the mesh, which directly affects how well the fabric holds together at a heat-welded seam. A seam that fails before the fabric itself is almost always a coating adhesion issue, not a base fabric failure. Wider rolls at 2.1m reduce the number of longitudinal welds needed for a large pool cover, cutting fabrication time and eliminating a common failure line. Lighter grades remain flexible in cold conditions thanks to cold crack resistance built into the compound.
The Hidden Cost of Specifying on GSM Alone
A roll that meets the quoted GSM can still underperform if the base fabric denier and weave density are lower than expected, with more PVC filler compensating for less yarn. In pool cover applications, this leads to a fabric that feels heavy but tears easily along the warp when an installer pulls it across a rough concrete deck edge. Weld strength also suffers, because excess plasticiser in a filler-heavy coating migrates into the heat-affected zone and softens the seam over time. The result is a cover that passes the weight check on arrival yet fails in the field within the first season. [NEED_CITE: relationship between base fabric construction and tear propagation per ISO 1421]
Why Wholesale Buyers Consolidate Here
Three full production lines with 36 sets of professional equipment support bulk PVC pool cover tarpaulin roll output with consistent on-time dispatch across multiple weight grades in a single order. A 10-person R&D team handles custom colour matching and width adjustment with sample rolls developed within days for buyer approval. Dedicated QA/QC at every production stage means each roll is checked for weight, thickness and colour before winding, not just sampled at the end. Pre-shipment inspection covers 100% of rolls against the purchase specification, with a roll-by-roll record provided before the container is sealed. The coating process control built over decades of coated fabric production is what keeps GSM, colour and adhesion consistent from the first roll to the last in your container.
Documentation & Verification
- Material specification sheet stating GSM, base fabric and coating type for each roll grade ordered
- Pre-shipment inspection record with roll-by-roll weight and thickness verification against the quoted specification
- Roll packing list with roll count, gross weight and dimensions for container loading calculation
- Colour reference confirmation sheet signed off before production begins
- Certificate of origin and customs documentation prepared for the destination market
Fabrication, Handling & Storage
- Heat-weld at temperature and speed matched to the specific GSM and hot-melt coating formulation — test on an offcut first
- Store rolls upright on pallets in a shaded, dry area to prevent flat spots and edge deformation on the PVC coating
- Avoid dragging rolls across concrete or gravel during unloading to protect the outer PVC layer from scoring
- Clean finished covers with mild detergent and soft brush; avoid solvent-based cleaners that attack the plasticiser in the PVC compound
- Allow cold-stored rolls to acclimatise to workshop temperature before unrolling and welding to prevent coating stiffness and crease damage
What We Need to Quote Your Roll Order
Provide the target GSM or thickness, the stock or custom width you need, and the colour reference — whether from our standard range or a Pantone match. Let us know your annual volume and container consolidation plan so we can align production batches for consistent colour across repeat orders. If you require flame retardant or verified anti-UV treatment, specify the grade your market demands so we can confirm availability and supply the corresponding test report.
Frequently Asked Questions
Q: GSM stated on the quotation — how do I verify the actual weight on arrival?
A: Each roll is weighed during pre-shipment inspection and recorded against the stated GSM. You receive a roll-by-roll weight verification record before dispatch. On arrival, cut a measured sample from any roll, weigh it, and compare against the specification sheet. Any discrepancy beyond normal tolerance is covered under our after-sales resolution process.
Q: How is roll-to-roll colour consistency controlled across a bulk order?
A: Pigment is metered into the PVC compound at the hot-melt coating stage, locking colour into the coating layer. Production checks against your confirmed colour reference run throughout the batch. This ensures panels cut from different rolls in the same container weld together without visible hue mismatch when installed side by side.
Q: What stock widths and roll lengths are available, and can I mix grades in one container?
A: Stock rolls ship at 2m × 75m and 2.1m × 50m. You can mix multiple GSM grades, colours and widths in a single container order. We provide a detailed roll packing list with count and gross weight so you can plan your container load before production begins.
Q: What is the MOQ for custom colour or custom width rolls?
A: Custom colour and width requirements carry minimums that depend on the coating run setup. Send your target colour reference and width with your estimated annual volume, and we will confirm the minimum and provide a sample roll for approval before full production starts.
Q: How are rolls packed for container shipping to prevent transit damage?
A: Each roll is wrapped and secured on pallets to prevent shifting during ocean freight. The packing list includes roll count, dimensions and gross weight per pallet. Rolls are loaded to fill the container evenly, minimising dead space and reducing the risk of edge damage or coating deformation during transit.
