Description
Batch Verification — Every 650gsm roll is weighed and cross-checked against the coating line log before dispatch, ensuring the quoted GSM matches arrival weight for wholesale buyers.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PVC Tarpaulin Roll |
| Weight | 650gsm |
| Base Fabric | 100% high tenacity polyester yarns |
| Coating Material | PVC |
| Coating Method | Laminated technology & Hot-melt Coating technology |
| Waterproof | Yes |
| Anti-Mildew | Yes |
| Cold Crack Resistance | Yes |
| Anti-Static | Treatment available — confirm the standard required for your market |
| Flame Retardant | Available as special treatment — confirm the grade required for your market |
| UV Treatment | Weather resistance claimed 3-5 years outdoor life (test basis not stated) |
| Color Fastness | Best color fastness (grade not stated) |
| Tear Strength | Outstanding tearing strength for welding (test standard not stated) |
| Adhesion Strength | Good adhesion strength (value not stated) |
| Key Features | Anti-mildew, cold crack resistant, waterproof, hot-melt coated |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Tarpaulin distributor stock | Bulk roll inventory for regional redistribution requiring consistent GSM and color across containers |
| Fabricator conversion stock | Slitting, welding and printing on flat bed or high-frequency machines, requiring uniform coating adhesion |
| Transport fleet in-house production | Side curtain and truck cover fabrication with repeated flex cycles and road-level abrasion exposure |
| Tent and awning manufacturing | Roll fabric cut and welded into frame tents and retractable awnings, exposed to sustained UV and rain |
| Agricultural and aquaculture covers | Pond liners and stockpile covers in continuous water contact with soil chemistry and puncture risk |
Why Wholesale Buyers Lose Money on Roll Stock That Looks Right on Paper
The specification sheet says 650gsm, but the roll that arrives at your warehouse is lighter — and the cost difference is invisible until the fabricated cover fails in the field.
When importing PVC Tarpaulin Roll wholesale 650gsm bulk, the gap between quoted weight and delivered weight is one of the most common disputes in the coated fabric trade. A roll that is short by even a small margin per square meter compounds across hundreds of rolls in a container. The buyer pays for material that was never produced, and the downstream customer receives a cover that underperforms against wind load and abrasion [NEED_CITE: pre-shipment weight verification protocols for coated fabric rolls]. Flame retardant or anti-UV treatments claimed on the quotation without a supporting test report create a second layer of exposure, particularly when the fabricated product must meet a local building code or transport regulation.
Roll-to-Roll Consistency Across the Full Production Run
Color drift between rolls in the same container is a fabrication problem, not just a visual one. When two panels welded side by side show different shades after installation, the entire cover is rejected by the end user. Our coating lines maintain pigment dosing and hot-melt temperature within controlled bands throughout the production run, so the PVC Tarpaulin Roll wholesale 650gsm bulk you receive in one shipment shows uniform color when unrolled panel by panel.
Container Loading and Dispatch Documentation
Bulk wholesale supply means the loading plan matters as much as the fabric itself. Roll count, net weight, and container utilization are calculated before production starts, so the buyer knows how many linear meters of 650gsm material fit in each twenty-foot or forty-foot container. The packing list, certificate of origin, and pre-shipment inspection record ship with the container, reducing customs delays at the port of entry [NEED_CITE: standard export documentation requirements for coated textile rolls].
How Coating Method Determines Welding Performance
The combination of laminated technology and hot-melt coating technology affects how the fabric behaves on the fabrication floor. Hot-melt coating drives the PVC compound into the polyester yarn interstices under heat and pressure, producing stronger adhesion between coating and base fabric than knife-over-roll coating alone. For fabricators converting rolls into welded covers, this means the heat-activated weld zone reaches full bond strength without delamination at the seam edge. The 100% high tenacity polyester yarn base provides dimensional stability during high-frequency welding, preventing the fabric from stretching or distorting under electrode pressure.
Specifying Roll Stock Without Checking What the Coating Line Actually Produced
When a distributor orders multiple containers of 650gsm roll stock without requesting per-roll weight records, the risk is not just financial — it reaches the end customer. Covers fabricated from underweight panels tear at the eyelet line under wind load, and pond liners puncture under hydrostatic pressure that the specified weight should have resisted. Anti-mildew treatment claimed without verification means stored rolls develop fungal staining before they reach the fabricator’s cutting table [NEED_CITE: coated fabric degradation mechanisms in tropical storage conditions]. Batch color inconsistency discovered after fabrication forces a full replacement at the distributor’s cost, not the mill’s.
Why Sourcing 650gsm Roll Stock Here Reduces Your Verification Burden
Three dedicated coating lines produce this material with in-process GSM sampling at set intervals along the roll length, not just at the start. A 10-person R&D team handles custom width, color matching and sample development so that trial rolls are ready for your fabricator to test on their own welding equipment within days. The QA/QC protocol includes 100% pre-shipment inspection with documented weight checks against the stated 650gsm specification. ISO and CE certified production processes underpin every roll that ships, and the facility has nearly 30 years of coating process control experience specific to PVC on polyester substrates.
Documentation & Verification
- Material specification sheet stating 650gsm, polyester base fabric, and hot-melt coating method per batch
- Pre-shipment inspection record with per-roll GSM verification and color consistency check
- Roll packing list detailing roll count, net weight, and container loading plan by TEU or FEU
- Certificate of origin and customs documentation prepared for international wholesale shipment
- Test reports for flame retardant, anti-static or anti-UV treatment supplied when ordered with those specifications
Fabrication, Handling & Storage
- Hot-melt coated panels bond well under high-frequency welding — set dwell time to match 650gsm thickness for full seam adhesion
- Store rolls upright on end caps to prevent flat-spot creases that telegraph through the PVC surface
- Allow cold-stored rolls to reach ambient temperature before unrolling to avoid coating micro-cracking
- Anti-mildew treated rolls should still be stored in ventilated, dry conditions to preserve treatment effectiveness
- Cut panels with cold blades rather than hot knives to keep the polyester yarn edges clean for welding preparation
What to Include in Your Inquiry
Specify the roll widths and lengths your fabrication line requires, along with annual volume and container frequency. If your market mandates a particular flame retardant grade or anti-static standard, state the exact regulation so we can confirm the treatment before quotation. Let us know whether you need plain stock or custom color matching to a Pantone or RAL reference, and whether sample rolls are required for welding trials on your equipment before the first production order.
Frequently Asked Questions
Q: How is GSM verified on each roll before shipment?
A: Each roll is sampled and weighed at multiple points during production and again during the 100% pre-shipment inspection. The verified weight is recorded on the inspection report that accompanies the packing list, so you can cross-check the delivered 650gsm specification against the documentation when the container arrives at your warehouse.
Q: What roll widths and lengths are available for bulk ordering?
A: Standard widths are produced to fit common container loading configurations, and custom widths are available with reasonable minimums. Roll length is set to your specification — specify the linear meters per roll that suit your cutting table or slitting line, and the production team will confirm the achievable length within the coating line capacity.
Q: How is batch-to-batch color consistency maintained across large orders?
A: Pigment dosing is controlled at the mixing stage before the hot-melt coating process begins, and color checks are taken at intervals throughout the production run. Rolls from the same batch are grouped together in the packing list so that your fabricator can plan panel layouts from matched rolls and avoid visible shade variation in the finished product.
Q: What is the container loading plan by roll count and total weight?
A: Before production starts, we provide a container loading calculation showing roll count, individual roll weight, total net weight, and cubic utilization for your chosen container type. This allows you to plan your landed cost per square meter accurately and schedule warehouse space at the destination port.
Q: What special treatments can be applied to roll stock?
A: Flame retardant, anti-static, anti-mildew, and anti-cold treatments are available as additions to the standard 650gsm hot-melt coated construction. Specify the grade or standard your market requires — for example, a particular fire classification — so we can confirm the treatment formulation and supply the supporting test report with your shipment.
