Controlled Coating Weight — verified at every production stage for this 650gsm PVC coated fabric, with in-process checks ensuring base fabric and coating adhesion meet material specification before dispatch.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PVC Coated Tarpaulin |
| Specification | 12m by 12m PVC Trailer Tarpaulin Sheets 650gsm |
| Base Fabric | 100% high toughness polyester yarn |
| Base Fabric Denier | 1000D |
| Coating Material | PVC |
| Coating Method | Lamination technology and hot melt coating technology |
| Weight | 650gsm |
| Thickness Range | 0.70–1.0 mm |
| Tensile Strength (Warp) | 2000–2500 N/5cm (test basis not stated) |
| Tensile Strength (Weft) | 1800–2200 N/5cm (test basis not stated) |
| Weld Tear Strength | Excellent (test basis not stated) |
| Cold Resistant | Yes (grade not stated) |
| Flame Retardant | Available in flame retardant grades — confirm the grade required for your market |
| UV Treatment | Available with UV treatment — confirm test basis for your specification |
| Anti-Static | Anti-static treatment (surface resistance or standard not stated) |
| Anti-Mildew | Mold proof |
| Waterproof | Yes |
| Colour Fastness | Best colour fastness (grade not stated) |
| Eyelet & Hem | With eyelets |
| Standards | ISO, CE |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Truck and trailer load covering | Sustained road vibration, load flexing at tie-down points, weather and UV exposure |
| Heavy-duty transport protection | Abrasion at contact surfaces, wind load during transit, repeated folding and unfolding |
| Outdoor weather and road exposure | Rain, dust ingress, temperature cycling, mechanical stress from cargo movement |
Why GSM Alone Does Not Define Fabric Performance
A stated 650gsm value only matters when coating weight, base fabric denier and adhesion method are verified together.
Technical buyers often receive PVC coated fabric that meets the quoted GSM on a scale test but fails at the weld line under actual load. The relationship between base yarn denier, coating method and finished weight determines how the material behaves at flex points and seam joints. [NEED_CITE: tensile and tear test methods for coated fabrics per ISO 1421] Without test documentation linking these variables, a PVC Coated Fabric 650gsm label tells you very little about real-world structural behaviour on a trailer bed.
Coating Adhesion and Weld Integrity
This PVC Coated Fabric 650gsm grade uses lamination technology combined with hot melt coating, which bonds the PVC layer into the 1000D polyester base fabric rather than sitting on the surface. This process produces stronger adhesion at the coating-to-yarn interface, which directly affects how well high-frequency welded seams hold under repeated flexing. When a truck side curtain flexes at every tie-down point during transit, the weld line must outlast the fabric itself.
Base Fabric Denier and Structural Load Response
The 1000D high-toughness polyester yarn provides a dense base structure that distributes tensile loads across both warp and weft directions. Warp tensile strength reaches 2000–2500 N/5cm while weft holds at 1800–2200 N/5cm, placing this material in a range suited to sustained mechanical stress. [NEED_CITE: relationship between base fabric denier and coated fabric tensile performance] Heavier denier yarns resist tear propagation more effectively at cut edges and eyelet placements, which is critical when wind load concentrates force at discrete fastening points.
Understanding Thickness, Weight and Coating Method Together
The 0.70–1.0 mm thickness range for this 650gsm grade reflects the combined contribution of base fabric density and PVC coating mass applied through hot melt and lamination. A heavier coating does not automatically mean better performance — if the coating sits poorly on a lighter base fabric, the material becomes stiff and prone to cracking at fold lines. The lamination and hot melt approach ensures the PVC penetrates the yarn structure, producing a flexible composite that maintains integrity across cold-weather exposure and repeated handling. Mold-proof treatment and cold-resistant properties further support performance in varied climates without adding stiffness to the finished sheet.
What Happens When Material Specifications Are Not Verified
Fabricators and fleet operators regularly encounter PVC coated tarpaulin that arrives lighter than the quoted GSM, with coating weight reduced to cut production costs. The result shows up as early weld failure, colour variation across sheets in the same order and cracking along fold lines after short-term exposure. [NEED_CITE: common failure modes in coated tarpaulin at welded seams] When flame retardant or anti-static treatment is claimed without a supporting test report, the material may fail site inspection at mining or construction locations. Batch inconsistency across rolls forces re-cutting and waste, which compounds the cost problem well beyond the original material price.
Why Source This Grade Through Jinxiang
Nearly 30 years of focused coated fabric production gives this facility deep process control over coating weight and yarn adhesion — directly relevant to maintaining 650gsm consistency across sheets. Three full production lines and 36 sets of professional equipment support bulk output without compromising coating uniformity. A 10-person R&D team handles material selection, custom sizing and sample development specific to your trailer dimensions. Every production run includes dedicated QA/QC at each stage with 100% inspection before shipment, so the PVC Coated Fabric 650gsm sheets you receive match the approved sample and data sheet. Samples are developed within days when custom dimensions or treatment combinations are required.
Documentation & Verification
- Material specification sheet stating exact 650gsm weight, 1000D base fabric denier and coating method
- Test reports for UV resistance and flame retardant grades provided where applicable
- Pre-shipment inspection record verifying GSM, colour consistency and eyelet placement
- Roll packing list with weight per sheet for receiving verification
- Certificate of origin and customs documentation included with dispatch
Fabrication, Handling & Storage
- High-frequency welding parameters should be calibrated for 650gsm thickness and hot melt coating composition
- Eyelet reinforcement at 12m sheet edges must distribute tie-down load across the 1000D base structure
- Store rolls or folded sheets flat to prevent permanent crease marks in the laminated PVC layer
- Avoid dragging sheets across abrasive surfaces during installation to protect the coating finish
- Cold-weather deployment requires gradual unfolding to prevent stiffness-related cracking at fold lines
- Clean with mild detergent only — solvents may degrade the PVC coating bond on this hot melt grade
What to Include in Your Enquiry
Provide the specific trailer model or structure dimensions so sheets can be cut to fit rather than supplied in generic sizes. Confirm whether your market requires a specific flame retardant grade or anti-static certification level, and state the annual volume to align production scheduling. If colour consistency across multiple sheets or orders is critical, request a colour reference sample before confirming bulk production.
Frequently Asked Questions
Q: How is the 650gsm weight verified before delivery?
A: Each production batch undergoes in-process coating weight checks and 100% pre-shipment inspection. The material specification sheet included with your order states the exact GSM, base fabric denier and coating method used. We do not rely on batch averages — individual sheet verification ensures the PVC Coated Fabric 650gsm you receive matches the data sheet.
Q: What test basis supports flame retardant and anti-static claims?
A: Flame retardant and anti-static treatments are available for this grade, but the applicable standard depends on your market and application site requirements. Request the specific test report for your target compliance framework before confirming the order. We provide documentation with the shipment so site inspectors have what they need on arrival.
Q: How does the 1000D base fabric relate to welded seam performance?
A: The 1000D high-toughness polyester base provides a dense yarn structure that the hot melt coating penetrates during lamination. This bonding produces strong adhesion at the coating-to-yarn interface, which translates to better weld tear strength at flex points. Heavier denier yarns resist tear propagation around cut edges and eyelet holes under concentrated load.
Q: What controls ensure colour consistency across multiple sheets?
A: Colour matching is managed through controlled pigment dosing during the coating stage and verified against approved reference samples during pre-shipment inspection. For orders requiring multiple 12m sheets in the same colour, production scheduling groups these on the same coating run to minimize batch-to-batch variation.
Q: Can this 650gsm grade be supplied in custom sizes with eyelets?
A: Sheets are cut to specific vehicle or structure dimensions with eyelets and reinforced hems added per your drawing. The 1000D base fabric supports secure eyelet fixing wi*exact dimensions and eyelet spacing requirements so we can develop a sample for approval before bulk production.
