Description
Roll-to-Roll Batch Consistency — Every PVC coated tarpaulin roll leaving the facility undergoes 100% inspection for coating weight and colour uniformity before container loading, verified against the stated GSM on the material specification sheet.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PVC Coated Tarpaulin Roll |
| Base Fabric | 100% high toughness polyester yarn |
| Coating Technology | Lamination technology and hot melt coating technology |
| Weight (Medium-duty) | 400-500 g/m² |
| Weight (Heavy-duty) | 700-1000 g/m² |
| Weight (Super Heavy-duty) | 1100-1500 g/m² |
| Thickness (Medium-duty) | 0.35-0.45 mm |
| Thickness (Heavy-duty) | 0.70-1.0 mm |
| Thickness (Super Heavy-duty) | 1.2-1.5 mm |
| Knitting Density (Medium-duty) | 500D |
| Knitting Density (Heavy-duty) | 1000D |
| Knitting Density (Super Heavy-duty) | 500D-2000D |
| Tensile Strength (Medium-duty) | Warp 1500-2000 / Weft 1200-1800 N/5cm |
| Tensile Strength (Heavy-duty) | Warp 2000-2500 / Weft 1800-2200 N/5cm |
| Tensile Strength (Super Heavy-duty) | Warp 2500-3000 / Weft 2200-2800 N/5cm |
| Treatment Options | Flame retardant (grade not stated in source); Anti-static (standard not stated in source); Cold resistant; Mold proof; UV resistant (test basis not stated in source) |
| Color Options | Blue, Blue/Orange, Green, Grey, Black, Clear, Grey/Green, Orange, custom colors |
| Weather Resistance | 3-5 years outdoor (source value — verify against manufacturer catalog) |
| Certifications | ISO, CE |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Truck tarpaulin and side curtains | Constant flexing at load points, road abrasion, rain and UV exposure, wind load during transit |
| Construction site protective cloth | Prolonged sun exposure, mechanical abrasion from tools and debris, wind uplift on scaffolding |
| Industrial pipe canopy | Outdoor weathering, chemical splash risk, UV degradation over extended installation periods |
| Tensioned structural fabric | Sustained mechanical stress, wind loading, UV exposure on architectural membrane surfaces |
| Agricultural and aquaculture covers | Permanent moisture contact, biological growth pressure, temperature fluctuation |
| Logistics trailer covers | High-speed wind shear, tie-down point stress, repeated folding and unfolding cycles |
Why GSM Verification Separates Usable Roll Stock from Write-Off Inventory
Every PVC coated tarpaulin roll shipped carries a pre-shipment inspection record confirming the actual coating weight matches the quotation.
The wholesale coated fabric trade has a persistent problem: PVC coated tarpaulin roll wholesale buyers receive material that feels lighter, flexes too easily, or fails at the weld line within the first season. The quotation states one weight, but the roll that arrives on the container floor tells a different story. Distributors then face complaints from their own fabrication customers who discover the shortfall only after cutting and welding. [NEED_CITE:] Verified GSM per roll before dispatch eliminates this failure mode at the source.
Roll-to-Roll Consistency Across Container Loads
Distributors buying PVC coated tarpaulin roll wholesale need confidence that roll number one and roll number five hundred in the same container behave identically on the welding table. Hot melt coating technology and lamination process control maintain consistent coating thickness across the production run, so tensile behaviour and weld adhesion do not drift from batch to batch. This consistency matters most when fabricators are running automated welding lines where temperature and speed settings assume uniform material input.
Colour Matching That Holds Up Side by Side
When a fleet operator orders enough heavy-duty fabric to cover twenty trailers, any colour variation between rolls becomes visible the moment panels hang next to each other on the highway. Pre-shipment colour verification across rolls in the same order catches drift before the container is sealed. Custom colour matching is available with sample approval before the full production run begins, so wholesale buyers can confirm the shade against their own reference before committing the full order. [NEED_CITE:]
Reading the Specification Sheet Beyond the Weight Number
GSM alone does not predict how PVC coated fabric will perform under load. Base fabric denier and knitting density determine how the material resists tear propagation once a puncture occurs. A 1000D yarn woven at high density delivers different tear behaviour than a 500D yarn, even if both achieve the same total coating weight through different PVC buildup. Coating method also matters: hot melt coating penetrates the yarn interstices and bonds at a molecular level, producing higher peel strength at welded seams compared to simple lamination where the PVC film sits on the fabric surface. For fabricators running high-frequency welders, this distinction determines whether the seam fails before the fabric does. Tensile strength values in the warp and weft directions indicate how the roll will behave under tension during installation on truck frames or structural supports.
What Happens When Specification Choices Go Wrong
Ordering a medium-duty 400-500 g/m² roll for a heavy truck side curtain application leads to premature failure at the flex points where the fabric folds against the trailer frame during loading. The material simply does not have the tear resistance to survive repeated high-stress cycles. Conversely, specifying a super heavy 1100-1500 g/m² grade for a lightweight temporary enclosure adds unnecessary weight and cost while making the fabric harder to handle on site. Welding parameters set for one thickness will burn through a lighter grade or fail to penetrate a heavier one, producing seam failures that look like fabric defects but are actually specification mismatches. [NEED_CITE:]
Sourcing Coated Fabric Rolls at Wholesale Volume
Three full production lines and 36 sets of professional equipment support bulk roll output with reliable scheduling for repeat wholesale orders. A 10-person R&D team handles custom width, colour matching, and treatment specification with sample development before production commitment. Dedicated QA/QC at every production stage ensures 100% inspection before shipment rather than random sampling. Nearly 30 years of focused coated fabric manufacturing provides process control over coating weight, adhesion strength, and colour formulation. Samples for custom requirements are developed within days, not weeks, keeping the procurement timeline moving.
Documentation & Verification
- Material specification sheet stating base fabric denier, coating method, GSM and colour reference per roll
- Pre-shipment inspection record with verified coating weight against stated GSM before dispatch
- Roll packing list detailing roll count, net weight, and dimensions for container loading planning
- Test reports for UV and flame retardant grades where applicable, matching the order specification
- ISO and CE certificates included with dispatch documentation package
- Certificate of origin and customs support documentation for international wholesale shipments
Fabrication, Handling & Storage
- Set high-frequency welder temperature and dwell time to match the specific coating thickness grade ordered
- Allow rolls to acclimatise to workshop temperature before unrolling to prevent creasing on heavier 1100-1500 g/m² grades
- Store rolls horizontally on pallets to avoid permanent compression marks on the PVC coating surface
- Use compatible PVC welding tape rated for the hot melt coating method when repairing field damage
- Plan cutting layouts around the ordered roll width to minimise offcuts and welded seam count
- Avoid dragging rolls across concrete floors to protect the coating finish before fabrication begins
What We Need to Quote Your Roll Order
Provide the target GSM range, required roll width and length, and the treatment grades your market requires so we can match the correct product tier. If your application demands specific fire classification or anti-static compliance, share the standard reference so the test documentation aligns with your end-user requirements. Confirm whether you need stock colours from the available range or a custom colour match with sample approval before production.
Frequently Asked Questions
Q: How is GSM verified on each roll before shipment?
A: Every roll undergoes weight measurement during pre-shipment inspection. The actual coating weight is recorded on the inspection report and compared against the GSM stated on your quotation. Rolls that fall outside tolerance are held back and re-coated or replaced before the container is sealed.
Q: What roll widths and lengths are available for bulk orders?
A: Standard widths and lengths are stocked for common medium, heavy and super heavy grades. Custom widths and roll lengths are available with sample approval before production. Provide your cutting layout requirements so we can recommend the most efficient roll dimensions for your fabrication process.
Q: How do you ensure colour consistency across rolls in the same container?
A: All rolls in a single wholesale order are produced in the same coating batch. Colour is verified against the approved reference before packing. Rolls are grouped by batch number on the packing list so you can trace every roll back to its production run.
Q: Can you supply test reports for UV and flame retardant treatments?
A: Test reports are available for UV resistant and flame retardant grades. Specify the standard required by your market when placing the order so the correct treatment and documentation are matched to your shipment. Confirm the grade needed before production begins.
Q: What lead times apply to stock grades versus custom specifications?
A: Stock grades in standard widths and colours ship on shorter timelines from existing production schedules. Custom colours, widths and treatment grades require sample approval before the full run, adding time for development and confirmation. Request a timeline when submitting your specification.
