Specialist Fabrication Support — Our 10-person R&D team handles material selection, welding compatibility testing and sample development for fire-retardant and anti-static PVC coated fabric projects.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PVC Coated Tarpaulin |
| Base Material | Polyester Base Fabric + Double-Sided PVC Coating |
| Yarn Count | 500D×840D to 1000D×2000D (varies by weight grade) |
| Weight (GSM) | 350 / 400 / 420 / 500 / 600 / 650 / 750 / 900 (range covers product family — confirm the grade for this item) |
| Density | 1.15–2.00 g/cm³ (source value — verify against manufacturer catalog) |
| Tensile Strength | 50–80 MPa (test standard not stated in source) |
| Coating Method | High frequency hot melt / Hot air / Sewing |
| Fire Retardant | Available (grade not stated in source — confirm the grade required for your market) |
| Anti-Static | Available (surface resistance value not stated in source — request test report) |
| Additional Features | Waterproof, Anti UV (test basis not stated in source), Heavy Metal Free, Anti Mildew, Flexible, Self Clean |
| Edge Treatment | High temperature heat sealed seamless edge wrapping, 5mm thick rope without splicing |
| Eyelet & Hem | 3cm enlarged aluminum alloy buttonhole, reinforced corners on all sides |
| Printing | Printable, Customized |
| Brittle Temperature | ≤ -50 to -60 °C |
| Softening Temperature | ≥ 80 °C |
| Melting Point | 212 °C |
| Standards | ISO, CE (specific standard numbers not stated in source) |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Mining & tunnelling ventilation duct | Continuous airflow, underground moisture, mandatory fire-retardant and anti-static compliance |
| Aviation ground support duct | Fuel-adjacent environment, anti-static surface resistance requirement, frequent relocation |
| Membrane structure (temporary building) | Wind uplift tension, UV exposure, fire code compliance for occupied spaces |
| Inflatable structure fabric | Repeated inflation cycles, seam integrity under internal pressure, puncture resistance |
| Construction site enclosure | Abrasion from debris, weather exposure, flame compliance near hot work zones |
Why Fire-Retardant Certification Matters More Than the Label on the Roll
A PVC coated tarpaulin marked "fire retardant" without a supporting test report is a compliance liability, not a solution.
Site inspectors in mining, tunnelling and aviation do not accept supplier declarations alone. They require a test report showing the fabric meets the specific classification standard enforced in that jurisdiction — DIN 4102, NFPA 701, or the local equivalent. When the documentation is missing or the grade does not match the project specification, the material is rejected at site, causing re-procurement delays that push against critical path schedules [NEED_CITE: DIN 4102 fire classification for building materials]. The cost of replacing installed duct or membrane fabric after a failed inspection far exceeds the upfront effort of verifying the grade before order placement.
Matching the Treatment Grade to the Compliance Standard
Fire-retardant requirements differ by country, industry and even individual project specification. A PVC coated tarpaulin destined for a European tunnelling project may need classification under EN 13501-1, while an Australian mining operation references AS 1530.2. The coating formulation and additive package change depending on the target grade, which is why confirming the standard before production begins is essential. We supply the fire-retardant test report matched to your specified grade as part of the shipment documentation, so the compliance chain is unbroken from factory to site.
Anti-Static Performance for Hazardous Atmospheres
In underground mining and aviation fuel-handling areas, static discharge on duct or membrane surfaces presents an ignition risk. Anti-static treatment lowers surface resistance, but the acceptable threshold depends on the site safety standard [NEED_CITE: anti-static surface resistance requirements for mining ventilation per relevant national standards]. We provide the anti-static test report showing measured surface resistance values when requested, allowing your safety officer to verify the fabric against the project specification before installation proceeds.
How Base Fabric and Coating Weight Interact
Tensile strength in a PVC coated tarpaulin is not a function of coating weight alone. The polyester base fabric — specified by denier and mesh count — carries the structural load, while the PVC coating contributes waterproofing, chemical resistance and surface properties. A 1000D×2000D base at a lower GSM may outperform a 500D×840D base at a higher GSM in tensile and tear resistance, because the thicker yarns and tighter weave distribute stress more effectively. The coating method also matters: high frequency hot melt produces higher peel strength at seams compared with simple sewing, which is critical when ventilation ducts flex under air pressure and membrane structures bear wind uplift loads. Brittle temperature at or below -50 °C and softening temperature above 80 °C define the usable climate envelope for this fabric family.
The Hidden Cost of Specifying on Price Instead of Documentation
Buyers who select a PVC coated tarpaulin based on the lowest GSM-adjusted price often discover the gap later. Material arrives lighter than the quotation stated, fire-retardant treatment is claimed but no test report accompanies the shipment, or welded seams fail at the flex points where the duct or membrane experiences the highest cyclic stress [NEED_CITE: tensile and tear test methods for coated fabrics per ISO 1421]. Reworking a ventilation duct installation underground or replacing a membrane roof on a temporary structure costs multiples of the original material saving. Verified weight, matched test reports and documented pre-shipment inspection are not optional extras — they are the minimum requirements for a compliant installation.
Why Specialist Buyers Source This Fabric Here
Our three full production lines and 36 sets of professional equipment handle the volume requirements of duct fabrication and membrane structure projects without splitting orders across subcontracted capacity. The 10-person R&D team develops samples with your specified fire-retardant grade and anti-static treatment within days, so you can run welding trials before committing to bulk. Every roll undergoes dedicated QA/QC at each production stage, with 100% inspection before shipment and a pre-shipment inspection record included in the documentation package. Material specification sheets state the exact GSM, base fabric denier, coating weight and treatment certifications — not a generic product family description. This process control is built on nearly 30 years of focused coated fabric production.
Documentation & Verification
- Material specification sheet stating exact GSM, base fabric denier and coating weight for the supplied batch
- Fire-retardant test report with the grade classification matched to your project specification
- Anti-static surface resistance test report provided on request for mining and aviation compliance
- Pre-shipment inspection record confirming weight and visual quality before dispatch
- ISO and CE certificates included in the shipment documentation package
- Certificate of origin and customs support documentation for international shipments
Fabrication, Handling & Storage
- High frequency hot melt welding is recommended for duct seams to maximise peel strength across the PVC coating layers
- Hot air welding suits field repairs and membrane structure joints where press equipment is not available
- Store rolls horizontally on pallets to prevent permanent creasing in the polyester base fabric
- Allow cold-stored rolls to reach ambient temperature before unrolling to avoid coating micro-cracking below the softening point
- Use mild detergent for surface cleaning; avoid solvents that degrade the PVC coating and fire-retardant additives
- Reinforce eyelet zones with additional PVC patches when the membrane structure bears sustained wind uplift loads
Request a Specification Match
Tell us the fire-retardant or anti-static standard your project requires, the duct diameter or membrane panel dimensions, and the annual volume you anticipate. We will recommend the base fabric denier and coating weight suited to those conditions, develop a sample with the specified treatment, and provide the full test report package for your compliance review before production begins.
Frequently Asked Questions
Q: What fire-retardant grade can you supply and which test standard does it meet?
A: Fire-retardant treatment is available across this PVC coated tarpaulin range, with the specific grade matched to your project standard — DIN 4102, NFPA 701, or another classification. Confirm the required grade at inquiry stage so the coating formulation and test report are aligned before production.
Q: Do you provide anti-static certification with surface resistance values for mining ventilation duct?
A: Yes. When anti-static treatment is specified, we supply a test report showing measured surface resistance values. This documentation allows your site safety team to verify compliance against the mining or aviation standard before duct installation proceeds underground.
Q: How is GSM verified on arrival and what documentation accompanies the shipment?
A: Each roll is weighed and measured during 100% pre-shipment inspection, and the inspection record is included in the dispatch documentation. The material specification sheet states the exact GSM for the supplied batch, so you can cross-check on arrival.
Q: What welding methods are recommended for duct fabrication and seam integrity?
A: High frequency hot melt welding delivers the highest peel strength for factory-fabricated duct sections. Hot air welding is suitable for field joints and membrane structure seams. Sewing is an option for non-pressurised covers but does not provide the same seam adhesion as thermal methods.
Q: Can you supply material test reports for tensile and tear strength with recognised standards?
A: Material test reports are available on request. Confirm the test standard required by your project specification — such as ISO 1421 — at the inquiry stage so the laboratory testing aligns with your compliance framework before the order enters production.
