Description
Coating Weight Precision — every roll verified against the material specification sheet before dispatch, with GSM confirmed through in-process QA across the full production run.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PVC Coated Tarpaulin |
| Base Fabric | High-strength polyester mesh fabric |
| Coating Technology | 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 Width | 2m / 2.1m |
| Roll Length | 75m (for 2m width) / 50m (for 2.1m width) |
| Color Options | Blue / Red / Yellow / Light blue / Grey (Customized) |
| Key Features | Waterproof, sunproof, anti-mildew, anti-static treatment, cold crack resistance, best color fastness |
| Standards | ISO, CE |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Truck awning and side curtain | Continuous UV exposure, road abrasion, repeated flexing at tie-down points |
| Cargo ship cover | Saltwater spray, wind loading, long-term sun exposure on deck |
| Tent and awning fabrication | Weather cycling, tension at frame contact points, colour consistency across panels |
| Fish tank and pool liner | Permanent water immersion, chemical exposure from treatment agents, puncture risk from substrate |
| Construction site cover | Debris impact, wind uplift, repeated repositioning and folding |
Why GSM Alone Does Not Determine Roll-to-Roll Consistency
Consistent coating weight across every roll in the same order is what separates usable stock from material that causes visible colour drift on the warehouse floor.
When sourcing PVC coated tarpaulin roll wholesale, the quoted GSM is only meaningful if it holds from the first roll off the line to the last one in the container. A variance of even a few grams per square metre between rolls can produce a noticeable shade difference once the fabric is unrolled and hung side by side. For distributors stocking multiple grades, or fabricators cutting panels from different rolls into the same finished product, this batch-level consistency is a non-negotiable quality requirement. [NEED_CITE: ISO 1421 tensile and tear test methods for coated fabrics]
Coating Adhesion and Weld Seam Integrity
The laminated and hot-melt coating technologies used on this PVC coated tarpaulin roll wholesale range create a strong bond between the polyester mesh base and the PVC layer. This adhesion is critical at the weld line, where heat sealing joins two panels together. When coating adhesion is weak, the PVC layer delaminates under tension before the weld itself fails — a common failure mode at flex points on truck side curtains and awning panels. Hot-melt coating tends to produce a more uniform bond thickness compared to basic lamination, which supports more consistent heat-seal results during fabrication.
Stock Roll Formats and Container Loading Efficiency
This PVC coated tarpaulin roll wholesale product ships in two standard roll configurations: 2m × 75m and 2.1m × 50m. The narrower, longer roll suits applications where panels are cut to length from a fixed width, such as side curtain fabrication. The wider, shorter roll accommodates applications needing broader single-piece coverage with fewer longitudinal welds. Both formats are designed for efficient container loading by roll count and weight, allowing buyers to plan shipments around full container utilisation rather than paying for partially filled boxes. [NEED_CITE: container loading calculations for coated fabric rolls]
How Weight, Thickness and Base Fabric Interact
Selecting the correct grade means understanding that GSM and thickness alone do not predict field performance. The high-strength polyester mesh base carries the tensile and tear load; the PVC coating adds waterproofing, UV shielding and surface durability. A 500gsm fabric with a tighter weave may outperform a 550gsm fabric with a looser base in tear resistance, depending on denier and yarn count. The coating method also matters: hot-melt coated rolls typically show better peel strength at the weld zone, which matters when the finished cover flexes under wind load or cargo movement. The six available GSM grades from 350gsm to 750gsm, paired with thickness options from 0.32mm to 0.65mm, cover the range from light-duty temporary covers to heavy-duty transport and structural applications.
The Hidden Cost of Inconsistent Roll Stock
Receiving rolls that measure lighter than the quoted GSM is a recurring complaint in the coated fabric trade. Beyond the direct material shortfall, lighter rolls often signal uneven coating — which leads to weak spots where waterproofing fails early. Colour drift between rolls in the same batch forces fabricators to either reject material or accept visible panel mismatches on finished products. When flame retardant grades are specified, an unverified treatment level can mean an entire shipment fails site inspection, causing project delays and rework costs that far exceed the fabric price itself. [NEED_CITE: flame retardant compliance testing standards for construction textiles]
Why Source Roll Stock From Jinan Jinxiang
Nearly 30 years of focused production on coated fabrics gives this manufacturer deep process control over coating weight and base fabric adhesion. Three full production lines and 36 sets of professional equipment support bulk roll orders with reliable on-time delivery schedules. A dedicated 10-person R&D team handles custom width requests, colour matching and sample development for new grades. QA/QC runs at every production stage with 100% pre-shipment inspection, meaning each roll is verified for GSM, colour and coating integrity before it leaves the facility. ISO and CE certifications back the documentation package, and samples for custom requirements are developed within days rather than weeks.
Documentation & Verification
- Material specification sheet stating exact GSM, base fabric type and coating method per roll
- Pre-shipment inspection record with 100% weight and colour verification before dispatch
- Roll packing list detailing roll count, individual weight and container loading plan
- ISO and CE certificates supplied with the full documentation package
- Colour reference confirmation locked to the purchase order to prevent batch drift
- UV and flame retardant test reports provided for applicable grades upon order confirmation
Fabrication, Handling & Storage
- Heat-seal parameters must match the coating technology — hot-melt coated rolls require different temperature settings than laminated grades
- Store rolls horizontally on racking to prevent flat spots and permanent creasing on the PVC surface
- Allow cold-stored rolls to acclimatise before unrolling to avoid cracking the coating at low temperatures
- Use compatible PVC-based cleaners; solvent-based products can degrade the coating layer over time
- Plan panel cuts from the 2m or 2.1m roll width to minimise offcuts and weld seams on large covers
- Field repairs on heavier GSM grades respond well to PVC patch welding; lighter grades may require adhesive-backed patches
Requesting a Quote for Roll Stock
When enquiring about this PVC coated tarpaulin roll wholesale range, provide your target GSM grade, required roll width and colour, along with estimated annual volume. If your market requires specific fire classification or anti-static compliance, state the standard your end users mandate so the correct treatment grade can be quoted. Confirm whether you need stock rolls only or custom widths and lengths, and whether sample approval is required before the production run.
Frequently Asked Questions
Q: How is the quoted GSM verified when the rolls arrive?
A: Every roll is inspected against the material specification sheet during pre-shipment QA. The inspection record documents actual GSM readings and accompanies the shipment. If you need independent verification, we can arrange third-party testing reports based on ISO 1421 methods. The documentation package includes a roll-by-roll packing list with weight details.
Q: Will all rolls in my order have the same colour?
A: Yes. Each order is locked to a confirmed colour reference before production begins. Our QA process checks colour consistency across the entire batch during the 100% pre-shipment inspection. Rolls are grouped by production run to ensure they come from the same dye lot, preventing visible shade variation when panels are installed side by side.
Q: What are the minimums and lead times for custom roll widths?
A: Custom widths outside the standard 2m and 2.1m options are available subject to minimum order quantities that vary by GSM grade. Lead times for custom widths are typically multi-week, depending on current production scheduling. We recommend requesting a sample of the custom width first to confirm the coating weight and handling characteristics meet your requirements.
Q: How many rolls fit in a standard container?
A: Container loading depends on the roll width, length and GSM grade. Heavier grades like 750gsm take up more weight per roll, reducing the total roll count per container compared to lighter 350gsm stock. The roll packing list provided with your quotation details the exact roll count, total weight and loading plan for your chosen container type.
Q: What is the difference between hot-melt coating and lamination?
A: Hot-melt coating applies PVC in a molten state directly onto the polyester mesh, creating a strong molecular bond with uniform coating thickness. Lamination bonds a pre-formed PVC film to the base fabric under heat and pressure. Hot-melt generally delivers better peel strength at weld seams, making it preferable for applications where the finished cover flexes repeatedly under load.
