Deep Coating Process Control — our laminated and hot-melt coating lines maintain consistent PVC adhesion across every roll, ensuring seams hold as long as the fabric itself in ventilation and technical structure applications.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PVC Coated Tarpaulin |
| Material | PVC + High-strength polyester mesh fabric |
| Weight (GSM) | 350gsm, 420gsm, 500gsm, 550gsm, 600gsm, 750gsm |
| Total Thickness | 0.32mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.65mm |
| Roll Size | 2m × 75m / 2.1m × 50m |
| Coating Technology | Laminated & Hot-melt coating |
| Available Colours | Blue, Red, Yellow, Light blue, Grey (customisable) |
| Waterproof | Yes |
| Anti-Mildew | Yes |
| UV Treatment | Sunproof (test basis not stated in source) |
| Flame Retardant | Available on request (grade not stated in source) |
| Anti-Static | Available on request (standard not stated in source) |
| Cold Crack Resistance | Yes |
| Printing Option | Special printed paint for extended print life |
| Repairability | Weld repair compatible |
| Recyclability | 100% recyclable |
| Standards | ISO 14001, ISO 45001, CE, RoHS |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Mining & tunnelling ventilation ducts | Continuous airflow pressure, underground moisture, fire safety compliance |
| Aviation ground-support ducting | Fuel-adjacent environments, strict flame-retardant certification |
| Membrane & inflatable structures | Long-term UV and weather exposure, structural tensile load |
| Truck awning and cargo cover | Road abrasion, wind flex, weather and UV exposure |
| Tent and temporary shelter cover | Repeated assembly stress, rain and wind load |
| Fish tank and pool liner | Permanent water contact, chemical resistance from treatment agents |
Why Fire-Retardant PVC Coated Tarpaulin Needs a Grade, Not Just a Claim
A flame-retardant label without a test standard leaves your installation open to rejection at the inspection stage.
Site inspectors on mining, tunnelling and aviation projects do not accept generic "FR" declarations. They ask for a test report tied to a recognised standard — B1 per DIN 4102, M2, or NFPA 701 — and if the PVC coated tarpaulin arrives without one, the duct or structure cannot be commissioned. We have seen projects stall for weeks while replacement fabric is sourced and re-tested. [NEED_CITE: DIN 4102 fire classification for building materials]
Matching the FR Grade to Your Site Specification
Our PVC coated tarpaulin is available in flame retardant grades — confirm the grade required for your market before placing the order. Mining ventilation ducts in Australia may demand a different classification than temporary hangar fabric in Europe. The critical step is aligning the test report with the standard cited in your site specification so the documentation passes first review.
Coating Adhesion and Seam Integrity Under Pressure
Ventilation ducts flex continuously under positive or negative air pressure, and the weld line is where failure most often appears first. Laminated and hot-melt coating technology creates a bond between the PVC layers and the polyester mesh that resists delamination at flex points. [NEED_CITE: tensile and tear test methods for coated fabrics per ISO 1421] When seams fail before the fabric, the cause is usually insufficient coating adhesion rather than the base fabric itself.
Reading GSM and Thickness Together for Duct Fabric Selection
Weight in GSM and total thickness in millimetres are both listed here because neither tells the full story alone. A 750gsm fabric at 0.65mm thickness uses a heavier base yarn and denser weave than a 350gsm option at 0.32mm, delivering higher tensile and tear resistance suited to large-diameter ducts under sustained pressure. The coating method — laminated versus hot-melt — further affects peel strength and how well the material holds a welded seam. Choosing the right combination depends on duct diameter, operating pressure, and the fire-safety standard the installation must meet.
What Happens When the FR Grade Does Not Match the Requirement
A ventilation duct installed underground without the correct fire-retardant certification forces the contractor to remove and replace the entire run — not just the fabric but all fittings, suspension hardware and re-testing. Batch-to-batch colour variation across rolls can also trigger rejection when duct sections are visible side by side in a tunnel. These are not theoretical risks; they are line items in project delay claims. [NEED_CITE: fire safety compliance requirements for underground ventilation systems]
Why Technical Buyers Source This PVC Coated Tarpaulin Here
Three full production lines and dedicated coating equipment give us capacity to run multiple GSM grades simultaneously without cross-contamination between batches. A ten-person R&D team handles material selection and sample development for custom width, colour and print requirements, with samples turned around within days. Every roll undergoes in-process quality checks and 100% pre-shipment inspection, so coating weight and colour stay consistent from first roll to last. We support your compliance file with material specification sheets, test reports for UV and flame-retardant grades where applicable, and full ISO and CE documentation. Custom widths and roll lengths are available with defined minimums, so you order what the project needs rather than what the stock list dictates.
Documentation & Verification
- Material specification sheet stating exact GSM, base fabric denier and coating type per roll
- Flame-retardant test report matched to the standard cited in your project specification
- Anti-static surface resistance data supplied with applicable test method reference
- Pre-shipment inspection record confirming coating weight and colour across all rolls in the order
- ISO 14001, ISO 45001, CE and RoHS certificates included in the shipment document set
Fabrication, Handling & Storage
- Hot-air welding at manufacturer-recommended temperature for 550gsm–750gsm grades ensures peel strength at seam overlaps
- Reinforce eyelet and tie-down zones with additional PVC patches on 350gsm–420gsm lighter grades used for duct ends
- Store rolls horizontally on a flat surface to prevent permanent creasing in 0.65mm heavy-gauge material
- Allow cold-stored rolls to acclimatise before unrolling to avoid cracking the PVC coating at low temperatures
- Use mild detergent only when cleaning printed surfaces to preserve special printed paint adhesion
- Plan cut patterns around 2m or 2.1m roll widths to minimise off-cuts and reduce the number of welded seams
What We Need to Quote Your Project
Provide the duct diameter or structure dimensions, the fire-retardant and anti-static standards your site specification cites, and the total linear metres or roll count required. If you need custom colour, width or printed branding, include the reference so we can develop a sample before production. Let us know whether you require finished cut sizes or full rolls, and we will confirm lead time and documentation scope with the quotation.
Frequently Asked Questions
Q: How do I confirm the flame-retardant grade matches my site standard?
A: Share the exact standard referenced in your project specification — such as DIN 4102 B1, M2 or NFPA 701 — and we will confirm whether our PVC coated tarpaulin can be produced and tested to that grade, supplying the matching test report with the shipment documentation.
Q: What anti-static certification is available for mining and tunnelling use?
A: Anti-static treatment is available on request for our PVC coated tarpaulin. Provide the surface resistance range or classification your site requires, and we will supply the corresponding test data with the material specification sheet.
Q: How is GSM verified at production and on arrival?
A: Each roll is weighed and measured during the pre-shipment inspection to confirm it meets the stated GSM. On arrival, you can verify by cutting a measured sample and weighing it on a calibrated scale; our inspection record gives you the baseline for comparison.
Q: What welding method works best for seams on heavier GSM grades?
A: Hot-air welding is the standard method for 550gsm to 750gsm PVC coated polyester. The laminated and hot-melt coating construction supports strong peel adhesion at weld overlaps. We recommend testing weld parameters on a sample piece before full production to confirm temperature and speed settings.
Q: Can I order custom width, colour and roll length?
A: Yes. Custom widths, colours from the available range and non-standard roll lengths are available with defined minimum order quantities per grade. Provide your requirements and we will confirm the minimum, lead time and any sampling needed before production.
