Coating weight control — Every roll of PVC coated tarpaulin fabric is verified against the stated GSM before dispatch, with in-process QA at each production stage to maintain batch-to-batch consistency across custom widths and treatment grades.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PVC Coated Fabric |
| Base Fabric Denier | 200D×300D / 500D×500D / 840D×840D / 1000D×1000D |
| Coating Material | PVC |
| Weight Range | 250gsm–1500gsm (confirm the grade for your application) |
| Surface Finish | Glossy or matte |
| Available Colors | Blue, Yellow, Black, Green, White, Custom |
| UV Treatment | Customized (test basis not stated — request report for your market) |
| Flame Retardant Treatment | FR treated (grade not stated — confirm the grade required for your market) |
| Anti-Fungal Treatment | Anti-fungal treated |
| Waterproof | Yes |
| Temperature Range | -15°C to 70°C |
| Working Life | 3–10 years depending on usage environment (verify against manufacturer catalog) |
| Custom Sizes | 3×4m, 6×8m, 8×10m, 10×12m or custom |
| OEM/ODM | Accepted |
| Certifications | ISO, CE |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Mining ventilation ducts | Confined-space fire safety compliance, anti-static discharge, flexing under airflow pressure |
| Aviation ground support structures | Temporary enclosure with flame-retardant certification, repeated deployment and folding |
| Tunnelling ventilation systems | Underground fire codes, continuous abrasion against rock surfaces, high-humidity environment |
| Inflatable membrane structures | Air-holding tensile demand, UV exposure on external faces, weld integrity at seam lines |
| Specialist industrial enclosures | Chemical-laden atmosphere, temperature fluctuation within the operating range, frequent access points |
What "Flame Retardant" Means Without a Grade Behind It
A flame-retardant claim without a named standard is not a compliance document — it is a marketing phrase.
When ventilation duct or specialist structure fabric arrives on site without the fire-retardant or anti-static certification the project specifies, work stops. The contractor faces a compliance gap that delays handover and exposes the operation to liability. PVC coated tarpaulin fire retardant specifications vary widely between markets — M2, B1, NFPA 701, and BS 5867 all define different test methods and pass criteria. A supplier stating "FR treated" without referencing the test standard leaves the buyer responsible for discovering the gap at the worst possible moment [NEED_CITE: fire classification standards for coated fabrics in mining and aviation applications].
Denier Selection and Tensile Demand
The base fabric denier options — 200D×300D, 500D×500D, 840D×840D, and 1000D×1000D — define the structural skeleton of the PVC coated fabric before any coating is applied. Higher denier yarns provide greater tensile and tear resistance, which directly affects how the material behaves under the continuous positive or negative pressure inside a ventilation duct or across a membrane structure span. Selecting the correct denier is a function of the duct diameter, operating pressure, and span length of the structure.
Coating Adhesion and Weld Behaviour
PVC coated tarpaulin for industrial ducts and inflatable structures must hold a welded seam that outlasts the fabric itself. The coating process determines how well the PVC bonds to the base fabric and how predictably the material responds to hot-air or wedge welding. If adhesion is weak, the coating delaminates at the seam before the yarn structure fails — a failure mode that is invisible during visual inspection but shows up under the first pressure cycle [NEED_CITE: tensile and tear test methods for coated fabrics per ISO 1421].
Reading GSM in Context with Denier
Grams per square metre alone does not tell a technical buyer how strong the PVC coated tarpaulin will perform in service. A 650 GSM fabric built on a 200D×300D base has a thicker coating but a weaker yarn skeleton than a 650 GSM fabric on a 1000D×1000D base. For ventilation duct applications where tensile load runs continuously along the length, the denier and weave density matter as much as the coating weight. This PVC coated fabric range covers multiple denier grades so that GSM and base fabric can be matched independently to the mechanical demands of the application.
Specification Gaps That Surface on Site
When fire-retardant grade is assumed rather than specified, the fabric may pass a basic burn test but fail the classification required by the site safety officer. Ventilation ducts installed underground or in aviation hangars must carry documentation matching the exact standard referenced in the project specification — not a general FR label. Similarly, anti-static treatment without a test result leaves the contractor unable to prove compliance during audit [NEED_CITE: anti-static testing requirements for ventilation ducts in mining environments].
Batch colour inconsistency across rolls in the same order becomes visible once panels are installed side by side on a membrane structure, forcing replacement or acceptance of a visual defect. These are not cosmetic issues — they signal inconsistent coating application that may also affect weld strength and treatment durability.
Why Source PVC Coated Tarpaulin Here
Three full production lines and 36 sets of professional equipment support bulk capacity for PVC coated fabric orders, reducing the risk of schedule slips on mining and tunnelling projects where duct delivery is on the critical path.
A 10-person R&D team handles material selection, custom width, and sample development so that technical buyers can validate denier, GSM, and treatment grade before committing to a production run.
Dedicated QA/QC runs at every production stage with 100% pre-shipment inspection, meaning GSM and coating weight are checked roll by roll rather than sampled at the start of the batch.
Samples are developed within days for custom requirements — essential when the fire-retardant or anti-static grade must be verified by the buyer’s own compliance team before bulk production begins.
Nearly 30 years focused on coated fabric provides process control over coating adhesion and weight consistency, which directly affects weld performance on fabricated ducts and inflatable structures.
Documentation & Verification
- Material specification sheet stating GSM, base fabric denier, and coating type per roll
- Fire-retardant and anti-static test reports matching the referenced standard for your market
- Pre-shipment inspection record confirming weight verification against the stated GSM
- ISO and CE certificates documenting quality management system compliance
- Roll packing list with batch traceability for colour and treatment consistency
- Certificate of origin and customs documentation for international dispatch
Fabrication, Handling & Storage
- Hot-air weld temperature and speed must be adjusted to the specific PVC coating weight and surface finish (glossy or matte) to avoid seam delamination
- Store rolls horizontally on racking to prevent flat spots that affect weld consistency across the PVC coated fabric width
- Allow cold-stored rolls to reach ambient temperature before unrolling to avoid coating micro-cracking at -15°C boundary conditions
- Use compatible PVC-based repair patches and solvent cement for field repairs on duct seams and membrane structure penetrations
- Plan panel cutting layout around the roll width to minimise off-cuts and reduce the number of welded seams in high-stress zones
- Clean glossy-finish surfaces with non-solvent cleaners to preserve coating integrity and maintain fire-retardant treatment effectiveness
What to Include in Your PVC Coated Fabric Enquiry
Technical buyers should specify the ventilation duct diameter or membrane span, the operating pressure or tensile load, and the fire-retardant or anti-static standard required by the site authority. Confirm the denier and GSM combination needed, along with colour, width, and whether you require finished panels or roll stock only. If the application demands a specific test classification, request a sample with the relevant test report before placing the bulk order.
Frequently Asked Questions
Q: Can you provide a test report for fire-retardant or anti-static treatment?
A: Yes. PVC coated tarpaulin with fire-retardant or anti-static treatment is supplied with a test report matching the standard you specify. Confirm the classification required for your market — such as M2, B1, or NFPA 701 — so the correct grade is applied and documented before production begins.
Q: How is GSM verified and what tolerance applies?
A: Each roll is weighed and measured during pre-shipment inspection. The GSM is verified against the specification sheet, and the result is recorded on the inspection report that accompanies dispatch. This roll-by-roll check ensures the PVC coated fabric you receive matches the quoted weight.
Q: What denier and GSM combination suits my duct or structure?
A: The correct combination depends on duct diameter, operating pressure, and span length. Higher denier base fabric handles greater tensile load, while coating weight influences weld strength and surface durability. Submit your application parameters and we recommend a grade with sample documentation for your review.
Q: Will colour be consistent across all rolls in one order?
A: Colour consistency is controlled through batch-matched coating runs and verified during pre-shipment inspection. All rolls in the same PVC coated tarpaulin order are produced under the same coating batch to minimise visible variation when panels are installed side by side.
Q: What certifications accompany fire-retardant or anti-static grades?
A: Fire-retardant and anti-static grades are supplied with test reports referencing the applicable standard, along with the material specification sheet and ISO/CE certificates. Confirm your site compliance requirements at enquiry stage so the correct documentation package is prepared with your shipment.
