Description
Batch-Verified GSM — Every roll of PVC Coated Tarpaulin is weighed and measured against the quoted specification before it leaves the production line, ensuring volume buyers receive exactly what was ordered.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PVC Pool Cover |
| Material Composition | PVC + High-strength polyester mesh fabric |
| Coating Technology | Laminated technology & Hot-melt coating technology |
| Yarn Type | High tenacity polyester yarns with PVC coating |
| Available Weight Grades | 350gsm, 420gsm, 500gsm, 550gsm, 600gsm, 750gsm |
| Total Thickness | 0.32mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.65mm |
| Roll Width | 2m or 2.1m |
| Roll Length | 75m or 50m |
| Finish Product Size | Custom items as per customer’s needs, or sold by inventory |
| Available Colors | Blue, Red, Yellow, Light blue, Grey (customized options available) |
| Key Features | Waterproof, Sunproof, Cold crack resistance, Anti-mildew, Best color fastness, Outstanding tearing strength for welding |
| Special Treatments Available | Flame retardant, Anti-static, Anti-cold, Anti-mildew, 3P (confirm the grade required for your market) |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Inground pool winter safety cover | Prolonged UV exposure, standing water, debris load, temperature cycling |
| Fish tank and aquaculture pond liner | Permanent water contact, chemical exposure from water treatments, puncture risk |
| Tent and awning cover | Wind loading, repeated folding and deployment, UV and rain exposure |
| Truck awning and cargo cover | Road vibration, wind abrasion, diesel fume contact, frequent tie-down tension |
Why Roll-to-Roll Consistency Matters More Than the Quoted GSM
A quoted weight figure only has value if it survives the journey from sample approval to container loading.
Purchasing PVC Coated Tarpaulin roll stock by the container load introduces a specific risk: the sample you tested and approved may not match the production batch that arrives weeks later. Rolls can arrive lighter than the stated GSM, or colour can drift between batches — a problem that only becomes visible when two panels are unrolled side by side on a job site. For distributors and importers stocking inventory for regional resale, this inconsistency creates downstream complaints from fabricators who cut and weld the material into finished pool covers, truck tarps, or tent panels.
The issue rarely stems from intentional short-weighting. It usually traces back to variable coating thickness during production, inconsistent curing temperatures, or base fabric tension fluctuations on the coating line. [NEED_CITE: common causes of GSM variation in coated fabric production per ISO 3801 test methods]
How We Control Weight Across a Production Run
At every stage of coating, the PVC Coated Tarpaulin roll passes through inline weight checks that measure the combined mass of base fabric and applied coating. Laminated technology and hot-melt coating technology both require precise temperature and pressure control to maintain uniform adhesion — drift in either parameter changes the finished weight per square metre. Production batches are segregated by dye lot and coating run, so every roll in a single container order shares the same manufacturing parameters.
Colour Matching Across the Order
Colour consistency is managed through standardised pigment dosing and controlled curing profiles. Each roll receives a colour reference number linked to its production batch. When a fabricator unrolls adjacent panels to weld a large pool cover or truck side curtain, the colour transition remains imperceptible. [NEED_CITE: spectrophotometer colour measurement standards for coated textiles] Custom colours are produced as dedicated runs rather than blended into existing stock batches, eliminating the drift that occurs when small custom lots are mixed with standard inventory.
Reading the Specification Sheet Beyond the Headline Weight
Weight in GSM and total thickness are related but distinct measures. A 500gsm roll with a 0.4mm thickness may use a denser base fabric weave than a 500gsm roll at 0.5mm, where more coating compound fills the gaps. The denser weave delivers higher tear resistance because the yarns must be broken sequentially rather than simultaneously. Coating method also shapes performance: hot-melt coating generally produces stronger peel adhesion between the PVC layers and the polyester mesh, which directly affects how well welded seams hold under load. Laminated technology offers a different cost-to-performance balance and may suit applications where extreme seam strength is less critical. Available widths of 2m and 2.1m, paired with roll lengths of 50m or 75m, affect cutting yield — wider rolls reduce the number of weld seams needed for large-format covers, while longer rolls reduce the number of splice points during fabrication.
The Hidden Cost of Specifying on Price Per Roll Alone
When purchasing decisions focus exclusively on cost per roll, the downstream consequences accumulate quietly. A roll that measures below its quoted GSM will tear more easily at eyelet points and weld seams, generating warranty claims from the end user who installed the pool cover or truck tarp. Colour drift between rolls in the same shipment forces fabricators to sort and match panels manually, adding labour time that was never budgeted. Rolls with inconsistent coating adhesion fail at the heat-welded seam before the fabric body degrades — the load flexes, the weld peels open, and the cover is returned. [NEED_CITE: weld seam peel strength testing per ISO 1421 for coated fabrics]
What Supports the Supply Chain Here
Three full production lines and 36 sets of professional equipment provide the throughput capacity to fulfil multi-container orders within typical lead time expectations. A 10-person R&D team develops custom colour matches, tests new weight grades, and prepares sample rolls before full production commitment. Dedicated QA/QC operates at every production stage with 100% inspection before shipment, meaning every roll dispatched has a verified weight record. The facility maintains ISO and CE certification, and documentation travels with every container. Near 30 years of focused coated fabric production has produced refined process control over coating weight and base fabric adhesion.
Documentation & Verification
- Material specification sheet stating GSM, base fabric denier, coating type and colour reference per roll
- Pre-shipment inspection record with measured weight per roll against quoted PVC Coated Tarpaulin specification
- Roll packing list detailing weight, dimensions and quantity for container loading verification at destination
- Certificate of origin and customs documentation prepared for each destination market
- Test reports for flame retardant or anti-static treatments available where applicable — confirm grade required
Fabrication, Handling & Storage
- Hot-air welding parameters should be calibrated to the specific GSM and coating technology of each roll batch
- Store rolls upright on pallets in a dry, shaded area to prevent compression marks on the PVC surface
- Allow cold-stored rolls to reach ambient temperature before unrolling to avoid cracking the coating layer
- Use sharp rotary blades when cutting to ensure clean edges that weld uniformly at seam joints
- Plan cutting layouts around the 2m or 2.1m roll width to minimise offcuts and maximise material yield
- Clean the PVC surface with mild detergent only; solvents may degrade the coating adhesion over time
Before You Place an Order
To provide an accurate quotation and lead time, specify the application environment and exposure conditions the PVC Coated Tarpaulin will face. Confirm the target market’s fire safety or building compliance requirements so the correct treatment grade can be selected. Indicate the required roll width, colour reference and estimated annual volume. State whether you need rolls only or finished cut sizes with eyelets and reinforced hems.
Frequently Asked Questions
Q: What roll widths and lengths do you keep in stock?
A: Standard inventory rolls are available in 2m width by 75m length and 2.1m width by 50m length across multiple GSM grades from 350gsm to 750gsm. These configurations are selected to optimise container loading efficiency for wholesale buyers. Custom widths and lengths can be produced with confirmed minimum order quantities and lead times at quotation stage.
Q: Can you confirm the GSM matches the quotation on delivery?
A: Yes. Every roll undergoes weight verification during production and again at pre-shipment inspection. The measured GSM is recorded against each roll number on the packing list and inspection report, which travel with the shipment. What is quoted on the specification sheet is what arrives in the container — no variance beyond standard production tolerance.
Q: How do you prevent colour variation between rolls in one order?
A: All rolls within a single order are produced from the same pigment batch under identical coating and curing conditions. Each roll carries a colour reference tied to its production run. For custom colours, we produce a dedicated run rather than blending into existing stock, eliminating the drift that causes visible differences when panels are laid side by side.
Q: Do you supply test reports for flame retardant and anti-static treatments?
A: Test reports are provided where applicable for the specific treatment grade applied to your order. Because fire safety requirements vary significantly by market and application — from building codes to mining regulations — we recommend confirming the exact grade your project requires before production so the correct certification can be arranged and shipped with your documentation.
