Description
Three full production lines — ensuring batch-consistent GSM and colour across every roll in a container load for wholesale distribution.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PVC Coated Tarpaulin |
| Base Fabric | 100% high toughness polyester yarn |
| Coating Material | PVC |
| Coating Technology | Lamination technology and hot melt coating technology |
| Weight | 600gsm |
| Width | 6m |
| Roll Length | 15m |
| Knitting Density | 500D-2000D |
| Thickness | 0.70-1.0 mm (heavy-duty grade) |
| Tensile Strength | Warp 1500-3000 N/5cm / Weft 1200-2800 N/5cm |
| Key Features | Waterproof, cold resistant, mold proof, anti-static treatment, excellent welding tear strength |
| Special Treatments | Flame retardant, anti-static, UV treatment available (grades to be confirmed per market requirement) |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Tarpaulin Distribution | Bulk purchasing requires roll-to-roll consistency in weight and colour for regional resale inventory. |
| Truck Cover Fabrication | High-frequency welding compatibility and strong adhesion at flex points for side curtains and trailer covers. |
| Logistics Fleet Maintenance | In-house repair of curtain damage requires material that matches existing fleet stock for seamless patching. |
| Tent & Awning Manufacturing | Buying by the roll demands batch uniformity to avoid visible colour variation in large structure panels. |
Why GSM Verification Matters for Bulk Buyers
A quoted weight means nothing if the roll on the warehouse floor does not match the certificate.
Distributors and importers often face margin erosion when PVC coated tarpaulin rolls arrive lighter than the spec sheet states. The discrepancy might not be visible until the material is cut and welded, where lower density yarn fails to hold the tension required for heavy-duty applications. [NEED_CITE: ISO 1421 tensile testing standards for coated fabrics]
Container Loading and Freight Efficiency
When importing PVC coated tarpaulin rolls, freight cost is a major component of the landed price. The 6m width allows for optimized container loading, maximizing the square meterage per twenty-foot or forty-foot unit. This is critical for wholesale buyers managing high-volume inventory turnover.
Batch Consistency Across Production Runs
Colour drift between batches is a frequent complaint in the wholesale market. By controlling the coating process through hot melt technology, the pigmentation is locked into the PVC layer with greater stability. This ensures that a reorder placed months later matches the existing stock, preventing visual mismatches when fabricators assemble large-scale structures or truck curtains [NEED_CITE: color fastness testing methods for PVC coatings].
The Technical Balance of Weight and Weave
A 600gsm specification is only as effective as the base fabric supporting it. The 500D-2000D knitting density range allows for a substrate that resists tearing across the warp and weft. If the yarn count is too low, the PVC coating carries all the load and cracks under stress; if too high, the material becomes rigid and difficult to fold or weld on-site.
Understanding Coating Technology: Lamination vs. Hot Melt
The choice between lamination and hot melt coating directly affects the peel strength of the material. Hot melt coating forces the PVC into the weave of the polyester yarn, creating a mechanical bond that is superior for high-frequency welding. This is essential for fabricators producing truck side curtains where the seams undergo constant vibration and flexing.
The Hidden Cost of Weld Failure
In many supply chains, the weld line fails before the fabric does. This is often traced back to the plasticizer migration within the coating or an incompatible surface finish. A fabric designed for fabrication must maintain a surface chemistry that allows the weld to fuse as strongly as the body of the material, preventing costly returns and on-site repairs [NEED_CITE: welding tear strength test methods for PVC tarpaulin].
Sourcing from a Dedicated Manufacturing Line
Unlike trading companies that consolidate from various small workshops, this product comes from a facility with dedicated QA/QC at every stage. The ability to produce custom widths up to 6m and manage large-scale roll production means that wholesale buyers receive documentation that accurately reflects the cargo.
Documentation & Verification
- Material specification sheet detailing base fabric denier, coating weight, and verified 600gsm.
- Pre-shipment inspection record with roll-by-roll weight and dimension checks.
- Roll packing list specifying net weight and roll count for customs clearance.
- Certificate of origin and compliance documentation for international trade.
Fabrication, Handling & Storage
- Use high-frequency welding at recommended temperatures to ensure the hot melt coating fuses properly.
- Store 6m rolls upright on pallets to prevent permanent creasing or edge damage.
- Allow rolls to acclimatize to room temperature before unrolling in cold weather to avoid coating cracking.
- Clean surfaces with mild detergents; avoid solvents that may degrade the anti-static or mold-proof treatment.
- Plan cutting layouts to maximize the 15m roll length and minimize off-cuts for large truck covers.
Inquiry Parameters for Wholesale Orders
To provide an accurate quotation and lead time, please specify your target GSM, required roll width, and estimated annual volume. If you require specific flame retardant grades or custom colours, provide the relevant standard (e.g., DIN 4102 or NFPA 701) so we can adjust the coating formulation.
Frequently Asked Questions
Q: How do you guarantee roll-to-roll colour consistency?
A: We use computerized colour matching during the PVC compounding stage and perform side-by-side visual checks under standard light sources before packing the container.
Q: What are the standard stock widths and GSM grades?
A: While we specialize in custom orders up to 6m wide, standard stock grades often include 400-900gsm ranges. Availability depends on current production scheduling.
Q: How is the 600gsm weight verified before shipment?
A: Every roll is weighed and measured against the spec sheet. A pre-shipment inspection report is generated, showing the actual GSM for each roll in the order.
Q: Can you optimize roll lengths for container loading?
A: Yes. We calculate the optimal roll length and diameter to maximize the payload of a 20ft or 40ft container, reducing your per-square-meter freight cost.
Q: What is the weld strength compared to the fabric body?
A: Our hot melt coating technology ensures the welding tear strength is excellent, meaning the seam integrity matches the durability of the 600gsm fabric itself.
