Description
Batch Consistency Control — Every roll of PVC knife-coated fabric ships with pre-shipment inspection records confirming weight, width, and colour match the specification locked at sample stage.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PVC Knife-Coated Fabric |
| Material | PVC + High-strength polyester mesh fabric |
| Coating Technology | Laminated & Hot-melt Coating |
| Weight Range | 350gsm / 420gsm / 500gsm / 550gsm / 600gsm / 750gsm (available grades — confirm required GSM) |
| Thickness Range | 0.32mm / 0.35mm / 0.4mm / 0.45mm / 0.5mm / 0.65mm (corresponding to weight grade) |
| Roll Width | 2m / 2.1m (custom widths available on request) |
| Roll Length | 75m (for 2m width) / 50m (for 2.1m width) |
| Color Options | Blue / Red / Yellow / Light Blue / Grey (custom colours available) |
| Temperature Range | -70°C to +100°C |
| Flame Retardant | Available in flame retardant grades — confirm the grade required for your market |
| Anti-Static | Available in anti-static grades — confirm the grade required for your application |
| Anti-UV | Available with UV treatment — confirm test basis for your market |
| Waterproof | Yes — fully coated construction |
| Anti-Mildew | Yes |
| Cold Crack Resistance | Yes |
| Standards | ISO / CE certified production |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Tarpaulin distributor inventory | Multiple GSM grades needed for regional resale — batch colour consistency across container loads |
| Tent and awning fabrication | Roll stock cut and welded in-house — requires clean weld lines and uniform coating adhesion |
| Transport packaging and logistics | Rolls converted to cut-size truck and trailer covers — abrasion at tie-down and flex points |
| Construction enclosure and scaffolding wrap | UV exposure, wind loading, repeated installation and removal over project duration |
| Agricultural and aquaculture covers | Permanent moisture contact, chemical exposure from feed or fertiliser, puncture risk |
Why GSM on the Label Does Not Guarantee What Arrives on the Dock
Verified roll weight before dispatch eliminates the most common dispute in tarpaulin wholesale trade.
When a PVC coated tarpaulin roll arrives lighter than the quoted GSM, the buyer faces a choice: accept sub-spec material or reject a full container and wait for replacement. Both options cost time and margin. The problem usually starts at the coating stage, where line speed and paste viscosity determine how much PVC actually bonds to the base fabric. Without in-line weight monitoring and pre-shipment cutting tests, the stated GSM on the quotation becomes a theoretical number rather than a delivered reality. [NEED_CITE: tensile and tear test methods for coated fabrics per ISO 1421]
Roll Dimensions Engineered for Container Loading
Standard roll widths of 2m × 75m and 2.1m × 50m are calculated against 20-foot and 40-foot container internal dimensions, allowing wholesale buyers to plan loading by roll count and total weight before the order is confirmed. Custom widths are available for buyers whose fabrication equipment requires specific feed widths, though minimum run lengths apply. This approach removes guesswork from freight planning and reduces the chance of part-container shipments that increase per-roll logistics cost.
Colour Control Across the Full Shipment
Colour variation between rolls in the same container is visible the moment two panels are hung side by side on a building wrap or welded into a single truck curtain. This PVC coated tarpaulin roll stock is produced with Pantone or RAL references locked at the sample stage, and signed colour swatches are retained for pre-shipment comparison. Every roll is inspected against the retained reference before packing, so the shade you approved at sampling is the shade that arrives at your warehouse. [NEED_CITE: colour fastness testing standards for coated technical textiles]
What the Numbers Behind GSM and Thickness Actually Mean
GSM alone does not predict how the fabric will behave under tension or at the weld line. A 650gsm roll with a loose base fabric weave may tear more easily than a 550gsm roll built on a tighter, higher-denier polyester mesh — the coating weight fills the gaps but does not add structural strength. The laminated and hot-melt coating technology used here bonds the PVC layer to the high-strength polyester mesh, and this bond quality determines how the material performs when heat-welded into seams. Roll width selection also matters: a 2.1m roll reduces the number of longitudinal welds needed for wide truck curtains, while a 2m roll may suit tent panel layouts with less offcut waste. The stated thickness values correspond directly to each GSM grade, giving buyers a reliable cross-reference when specifying across multiple weight options.
The Hidden Cost of Specifying on Price Per Roll Alone
When buyers select roll stock based purely on quoted price, the compromise usually appears at the coating stage: thinner PVC layers, faster line speeds, and reduced quality checkpoints. The result is material that welds poorly because the coating thickness varies across the roll width, or fabric that delaminates at stress points after a season of flexing. For distributors, this means customer complaints and returns; for fabricators, it means re-work and wasted labour on seams that fail before the fabric itself. [NEED_CITE: common failure modes in PVC coated fabric at heat-welded seams]
Production Capacity and Quality Process Behind Every Roll
Three full production lines and 36 sets of professional equipment support bulk roll output with consistent on-time dispatch across multiple GSM grades simultaneously. A 10-person R&D team handles custom colour matching, width adjustments, and sample development for buyers testing new specifications. Dedicated QA and QC checkpoints at every production stage — from base fabric inspection through coating, winding, and final packing — ensure each PVC coated tarpaulin roll stock order meets the locked specification. Pre-shipment inspection covers 100% of rolls, not a statistical sample, before any container is sealed.
Documentation & Verification
- Material specification sheet stating exact GSM, base fabric denier, and coating weight per roll batch
- Colour reference documentation with Pantone or RAL code and signed swatch retained at sample stage
- Pre-shipment inspection record covering roll count, individual roll weight, width measurement, and visual check
- Test reports for flame retardant and anti-static grades supplied with the applicable certification standard
- Roll packing list with container loading plan detailing roll count, weight, and cubic volume per container
- Certificate of origin and customs documentation support for cross-border wholesale clearance
Fabrication, Handling & Storage
- Hot-welding temperature should be tested on each GSM grade before full production — coating thickness varies across weight options
- Store rolls upright on pallets to prevent permanent creasing across the 2m or 2.1m roll width
- Unroll at ambient temperature — cold-stored PVC knife-coated fabric may crack if flexed below -70°C threshold
- Clean fabricated panels with mild detergent; solvent-based cleaners may affect surface coating and colour fastness
- Plan cutting layout around roll length (75m or 50m) to minimise offcuts and transverse weld seams
- Repair minor field damage with compatible PVC patches heat-welded at matching temperature settings
What to Include in Your Roll Stock Inquiry
To receive an accurate specification and lead time, provide your target GSM grade or the end-use application so we can recommend the appropriate weight and thickness. Confirm the roll width and colour required, along with the estimated annual volume for pricing tier alignment. If your market requires flame retardant or anti-static certification, state the applicable standard so test reports are prepared with the correct grade.
Frequently Asked Questions
Q: What is the minimum order per colour and per GSM grade?
A: Minimum order quantities vary by weight grade and whether the colour is a stock option or custom match. Stock colours in standard widths typically have lower minimums, while custom Pantone matches require a dedicated production run. Contact us with your specific GSM and colour combination for an accurate minimum and lead time.
Q: Can you guarantee colour consistency across multiple rolls in one shipment?
A: Yes. Every roll in a single order is produced against the same locked Pantone or RAL reference, and a signed colour swatch is retained for pre-shipment comparison. The 100% pre-shipment inspection includes a visual check of every roll against that reference before packing.
Q: How do I verify the GSM matches what was quoted?
A: Each shipment includes a material specification sheet stating the confirmed GSM and base fabric details for the batch. You can also request pre-shipment cutting test records showing measured roll weight. We recommend weighing a sample cut on arrival as an independent verification step.
Q: Do flame retardant and anti-static grades come with test reports?
A: Yes, when these treatments are specified at the order stage, test reports documenting the applicable grade are supplied with the shipment. Confirm the specific standard your market requires — such as DIN 4102 for building material fire classification — so the correct grade is applied and documented.
Q: What roll widths are available beyond the standard 2m and 2.1m?
A: Custom widths are available for buyers whose cutting or welding equipment requires non-standard feed sizes. Minimum run lengths apply for custom widths, and lead times may differ from stock roll dimensions. Specify your required width and annual volume when requesting a quotation.
