Description
Roll-to-roll consistency — verified through in-process QA and 100% pre-shipment inspection across multiple PVC laminated tarpaulin roll grades.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PVC Coated Tarpaulin for Pool Cover |
| Material | PVC + High-strength polyester mesh fabric |
| Coating Method | Laminated technology & Hot-melt Coating technology |
| Weight (GSM) | 350gsm / 420gsm / 500gsm / 550gsm / 600gsm / 750gsm |
| Total Thickness | 0.32mm / 0.35mm / 0.4mm / 0.45mm / 0.5mm / 0.65mm |
| Roll Width | 2m / 2.1m |
| Roll Length | 75m / 50m |
| Colour | Blue / Red / Yellow / Light blue / Grey (Customized) |
| Finish | Blackout |
| Key Features | Waterproof, Anti-UV (test basis not stated), Anti-Mildew, Anti-Static (standard not stated), Cold Crack Resistance, Flame Retardant available as special treatment (grade not stated) |
| Adhesion Strength | Good flexibility and adhesion strength (value not stated) |
| Tear Strength | Outstanding tearing strength for welding (test standard not stated) |
| Colour Fastness | Best colour fastness (test standard not stated) |
| Standards | ISO, CE |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Swimming pool cover fabrication | Continuous UV and water exposure, chemical contact from pool treatment, flex stress at tie-down points |
| Fish tank and aquaculture pond lining | Permanent water immersion, biological growth resistance, puncture risk from substrate |
| Tent and awning manufacturing | Repeated folding and unfolding, wind load tension, UV degradation over seasons |
| Truck awning and cargo cover | Road abrasion, weather extremes, flex fatigue at mounting points |
| Tarpaulin distribution and resale | Multiple GSM grades required for regional stock, batch colour uniformity across rolls |
Why GSM Quoted Is Not Always GSM Received — And What to Demand Instead
GSM on the quotation means nothing unless verified roll by roll at dispatch.
Buyers who source PVC coated tarpaulin roll stock for pool covers frequently discover on arrival that the material weighs less than the specification sheet promised. The shortfall may be small per square metre, but across a container of rolls it represents both a cost discrepancy and a performance gap. Coating weight directly influences tensile behaviour, weld seam integrity, and how the fabric handles under fabrication. When rolls arrive lighter than agreed, fabricators face warranty claims from their own customers. [NEED_CITE: GSM verification methods and acceptable tolerance bands for coated technical textiles]
Managing Roll Inventory Across Multiple GSM Grades
Stocking PVC coated tarpaulin roll stock in several weight grades lets fabricators serve different pool cover specifications from one shipment. The range here — 350gsm through 750gsm — covers lightweight residential pool covers at the lower end and heavy-duty commercial or municipal pool enclosures at the upper end. Ordering mixed-grade containers requires clear roll marking and a packing list that identifies each roll’s GSM, width, and length so warehouse staff can allocate stock without opening every wrapper.
Batch Colour Consistency Across Container-Volume Orders
When pool covers are installed side by side on adjacent pools or when a single large rectangular pool requires panels joined from two rolls, any colour shift between those rolls becomes immediately visible. Our production control targets uniform pigment dispersion and coating weight across every roll in a single batch run. Buyers ordering PVC coated tarpaulin roll stock by the container should request a batch colour reference and pre-shipment photos showing rolls from the same production run laid out together. [NEED_CITE: colour fastness test methods for PVC coated polyester fabrics]
Reading the Spec Sheet: What Weight, Thickness, and Coating Method Actually Mean Together
GSM alone does not determine how a pool cover fabric performs in the field. A 550gsm roll with a loose base fabric weave may tear more easily than a 500gsm roll built on a tighter polyester mesh. The laminated and hot-melt coating technologies used here affect how the PVC bonds to the base fabric — stronger adhesion means the coating resists delamination at welded seams, which is where pool covers typically fail first. Thickness correlates with puncture resistance but also with roll weight and handling difficulty during fabrication. Choosing between 0.4mm and 0.5mm for a given GSM involves balancing weld temperature settings, roll manageability on the cutting table, and the structural demands of the cover design. The blackout finish option eliminates light transmission through the fabric, which matters for pool covers where algae growth is driven by sunlight penetrating the material.
The Hidden Cost of Specifying Rolls Without Checking Coating Adhesion
A roll that meets GSM and colour targets can still fail at the fabrication stage if the coating separates from the base fabric during heat welding. Pool cover seams carry the tension load every time the cover is tensioned or wind lifts the edge. When adhesion is weak, the weld line peels before the fabric body reaches its tear limit. Fabricators who skip adhesion testing on incoming rolls absorb the cost of re-welding, customer returns, and reputational damage. Specifying laminated or hot-melt coated stock with documented adhesion behaviour reduces this risk. [NEED_CITE: peel adhesion test standards for PVC laminated fabrics per ISO 2411]
Why Fabricators Source Roll Stock From This Production Line
Three full production lines with 36 sets of professional equipment support bulk PVC coated tarpaulin roll stock output without sacrificing per-roll quality control. A 10-person R&D team handles custom width, colour matching, and sample development, typically turning around samples within days for buyers who need to confirm fabric behaviour before committing to a container order. Dedicated QA/QC runs at every production stage, and 100% pre-shipment inspection verifies GSM, colour, and coating integrity against the purchase order before rolls are wrapped and loaded. Roll packing lists detail roll count, individual weights, and dimensions so buyers can plan container loading without guesswork.
Documentation & Verification
- Material specification sheet confirming GSM, base fabric, and coating method per roll batch
- Roll packing list with count, weight, and dimensions for container loading plans
- Pre-shipment inspection record verifying GSM and colour against order specification
- Batch consistency documentation confirming colour uniformity across all rolls in the shipment
- Certificate of origin and customs documentation included with every dispatch
Fabrication, Handling & Storage
- Set weld temperature and dwell time based on the specific GSM and coating thickness of each roll grade
- Store rolls upright on pallets to prevent flat-spot creasing on the laminated PVC surface
- Allow cold-stored rolls to reach ambient temperature before unrolling to avoid coating micro-cracking
- Plan cutting layouts around 2m or 2.1m widths to minimise off-cuts on rectangular pool cover panels
- Use compatible PVC solvent or hot-air welding for seam joins; test adhesion on off-cuts first
What to Include in Your Roll Stock Enquiry
Provide your target GSM range, the pool cover dimensions you cut most frequently, and the annual roll volume you expect to move. If your market requires flame retardant or anti-static certification, state the standard your end users demand so the correct treatment grade is quoted. Confirm whether you need stock widths of 2m or 2.1m, or whether a custom width would improve your cutting yield. Request a sample roll or swatch set if colour matching to existing inventory is a priority.
Frequently Asked Questions
Q: How do you ensure GSM matches the quotation when rolls arrive?
A: Every roll undergoes weight verification during production and again at pre-shipment inspection. The packing list states measured GSM per roll batch, so you can cross-check on arrival. We recommend buyers conduct their own spot-check weighing of sample cuts from random rolls to confirm consistency.
Q: Can I get consistent colour across all rolls in a single container order?
A: Rolls within one production run are coated from the same pigment batch, which controls colour drift. We provide batch colour references and pre-shipment photos showing rolls together. For orders spanning multiple production runs, we flag this in advance and confirm acceptance before shipping.
Q: Which roll size loads more efficiently in a 40ft container — 2m × 75m or 2.1m × 50m?
A: Container loading efficiency depends on total roll count, individual roll weight, and stacking orientation. The 2m × 75m format yields more linear metres per roll, while the 2.1m × 50m format may suit cutting tables designed for wider stock. Share your container plan and we provide a loading diagram with roll counts.
Q: What is the MOQ for custom width or colour on a roll stock order?
A: Custom widths and non-standard colours require a production run setup, so minimums apply per specification. The exact MOQ depends on the GSM grade and treatment combination requested. Submit your target width, colour reference, and estimated annual volume, and we quote the minimum alongside lead time.
