Description
Consistent Roll Weight — every roll of 18oz 610gsm PVC coated tarpaulin passes in-process coating weight checks and 100% pre-shipment inspection before loading.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PVC Coated Tarpaulin Fabric |
| Weight | 610gsm / 18oz |
| Width Range | 0.914m – 3.42m |
| Mesh Count Options | 20×20 / 20×18 / 23×23 / 30×30 |
| Coating Material | PVC |
| Waterproof | Fully waterproof coated construction |
| UV Treatment | Anti-UV treatment available — confirm grade required for your market |
| Flame Retardant | Available in flame retardant grades — confirm the grade required for your market |
| Anti-Mildew | Antimicrobial / anti-mildew treatment available |
| Oil Resistance | Oilproof surface |
| Chemical Resistance | Acid and alkali resistant |
| Temperature Resistance | High temperature and cold resistant |
| Anti-Oxidation | Anti-oxidation treatment |
| Colour | All colours customisable per order |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Swimming pool covers | Continuous water contact, chlorine and chemical exposure, UV from direct sunlight, repeated rolling and unrolling stress |
| Truck and trailer side curtains | Constant flexing at tie-down points, road debris abrasion, wind load, weather and UV exposure year-round |
| Tent and awning fabric | Outdoor weathering, UV degradation, repeated assembly and disassembly, wind tension on seams |
| Inflatable structure fabric | Internal air pressure, repeated inflation cycles, UV and abrasion during setup and teardown |
| Construction site roofing | UV exposure, wind uplift, water ponding, chemical and dust exposure on active build sites |
What Batch Colour Variation Really Costs Distributors Buying by the Roll
Matching Pantone on a single sample means nothing if roll seven in the same container arrives a different shade.
Colour shift between rolls within one shipment is one of the most common complaints from tarpaulin distributors who stock and resell to end users. When two rolls from the same PVC coated tarpaulin roll wholesale order are installed side by side on a pool cover or truck curtain, even a slight hue difference becomes immediately visible. End users blame the distributor, returns pile up, and the entire batch gets questioned. Controlling dye lot consistency across every roll in a container requires process discipline at the coating stage, not just a colour check on the first roll off the line. [NEED_CITE: colour consistency standards for coated fabric batches per ISO 105 series]
How Roll-to-Roll Consistency Is Controlled Across a Bulk Shipment
Maintaining uniform colour and coating weight across hundreds of rolls in a single PVC coated tarpaulin roll wholesale order starts at the raw material stage. Base fabric from different production batches can absorb PVC plastisol differently, creating visible tone variation even when the same pigment formula is used. Coating temperature, line speed and plastisol viscosity must stay within tight bands throughout the entire run. Any drift in these parameters shows up as GSM variation or gloss difference that becomes obvious once the fabric is unrolled and laid flat under natural light.
Mixed-Width Container Loading Without Sacrificing Colour Match
Volume buyers often need multiple widths in a single container — narrow rolls for awning fabricators and wide rolls for pool cover manufacturers. Sourcing different widths from separate production runs virtually guarantees a colour mismatch. Running all widths from the same dye lot and coating batch is the only reliable way to keep PVC coated tarpaulin roll wholesale shipments visually consistent. This requires production scheduling that groups orders by colour first, then slits to width afterward. [NEED_CITE: PVC coating batch scheduling for colour consistency in industrial textiles]
Why Mesh Count Matters More Than Weight Alone for Pool Cover Fabric
The 610gsm weight tells you how much material is on the roll, but the mesh count determines how that weight is distributed across the base fabric. A 20×20 construction spreads yarn more evenly, giving balanced tensile strength in both warp and weft — important for pool covers that experience multidirectional tension when stretched over a frame. A 30×30 mesh uses finer yarns at higher density, producing a smoother surface better suited to printed branding or heat-welded seams. Choosing between 20×20, 20×18, 23×23 and 30×30 depends on whether the priority is tear resistance, surface finish or weld strength. The coating method — typically knife-over-roll for this weight class — fills the gaps between yarns, and a tighter mesh means less coating penetration is needed to achieve full waterproof coverage. [NEED_CITE: tensile and tear test methods for coated fabrics per ISO 1421]
The Hidden Cost of Ignoring Coating Adhesion on Heavy-Grade Rolls
A roll that measures 610gsm on arrival can still fail prematurely if the PVC coating separates from the base fabric at stress points. Coating adhesion depends on the bonding method and the compatibility between the plastisol formulation and the yarn finish on the base cloth. Pool covers that are rolled and unrolled daily create repeated peel stress at the edges. Truck side curtains flex thousands of times per journey, and delamination at flex points lets water penetrate the base fabric, accelerating mildew and yarn degradation. A GSM check alone will never catch poor adhesion — only peel strength testing reveals it. [NEED_CITE: coating adhesion test methods for PVC tarpaulin per ISO 2411]
Why Procurement Teams Consolidate Roll Orders Here
Three full production lines allow mixed-width and mixed-mesh-count orders to run simultaneously without cross-contamination between colour batches. A dedicated 10-person R&D team develops custom colour matches and confirms them with sample rolls before bulk production begins. Every roll undergoes in-process QA with coating weight checks at multiple points along the production run, not just a single end-of-line measurement. Pre-shipment inspection covers 100% of rolls in each container, verifying GSM, width, colour and surface finish against the order specification. Custom widths outside the standard 0.914m to 3.42m range are evaluated for feasibility and minimum run length before quotation.
Documentation & Verification
- Material specification sheet stating 610gsm, base fabric denier, mesh count and PVC coating method for each roll batch
- Roll packing list with per-roll GSM record enabling weight verification on arrival at destination port
- Pre-shipment inspection record confirming width, colour match and surface quality across all rolls in the shipment
- Anti-UV and flame retardant test reports supplied for applicable grades where specified at order stage
- Certificate of origin and customs documentation prepared per destination country requirements
Fabrication, Handling & Storage
- Heat-weld seams at temperatures matched to 610gsm PVC coating thickness to prevent base fabric scorching
- Store rolls upright on pallets to prevent flat-spot deformation of the 0.914m to 3.42m width coils
- Allow cold-stored rolls to reach ambient temperature before unrolling to avoid coating crack at low flexibility
- Use PVC-compatible cleaners only; solvent-based products may degrade the anti-UV surface treatment layer
- Plan cutting layouts around the ordered width to minimise offcuts and seam joins on pool cover panels
- Reinforce grommet and tie-down points with additional PVC patches welded to the 610gsm base fabric
What We Need to Quotate Your Roll Order Accurately
Provide the target width, mesh count preference and annual volume so we can confirm production scheduling and container loading plans. Specify any colour references or Pantone codes required, along with whether flame retardant or anti-UV certification is needed for your destination market. Let us know if you need sample rolls for fabrication testing before committing to bulk production.
Frequently Asked Questions
Q: How is GSM verified per roll and what documentation ships with each container?
A: Each roll is weighed and measured during in-process QA to confirm it meets the 610gsm specification. A roll packing list with individual GSM records accompanies every shipment, along with a pre-shipment inspection report. This allows you to cross-check weight on arrival against the documented values before the container leaves the port.
Q: What is the minimum order for custom width or colour per roll batch?
A: Minimum quantities depend on the specific width and colour requested, as production line setup and dye lot preparation vary. We confirm the minimum after reviewing your specification, and we provide sample rolls for approval before bulk production begins to ensure the result matches your requirement.
Q: How is roll-to-roll colour consistency controlled within one order?
A: All rolls within a single order are produced from the same PVC plastisol batch and dye lot to eliminate shade variation. In-line colour checks at multiple points during the coating run detect any drift early. The pre-shipment inspection compares every roll visually under standard lighting before container loading.
Q: How are rolls packed and loaded for container shipment to prevent transit damage?
A: Rolls are wound on cores, wrapped in protective film and packed upright on pallets to prevent crushing and flat-spot deformation. A container loading plan is prepared showing roll count, weight distribution and securing method, shared with the buyer for freight planning before dispatch.
Q: What lead times apply to bulk roll orders with custom width or mesh count?
A: Lead times depend on the combination of width, mesh count and colour requested, as some configurations require dedicated line scheduling. We provide a confirmed production timeline at the quotation stage, and sample development is completed within days so bulk production can start promptly after your approval.
