Proven Coating Control — Every roll of technical grade PVC coated fabric undergoes 100% pre-shipment inspection with coating weight verified against specification before dispatch.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PVC Coated Fabric |
| Base Fabric | High-strength polyester mesh fabric |
| Coating Material | PVC |
| Coating Method | Laminated technology & Hot-melt Coating technology |
| Weight (GSM) | 350gsm / 420gsm / 500gsm / 550gsm / 600gsm / 750gsm |
| Thickness | 0.32mm / 0.35mm / 0.4mm / 0.45mm / 0.5mm / 0.65mm |
| Roll Size | 2m width × 75m length / 2.1m width × 50m length |
| Finish Product Size | Custom items as per customer’s needs, or sold by inventory |
| Color | Blue / Red / Yellow / Light blue / Grey (Customized) |
| Key Features | Cold Crack Resistance, Anti-Mildew, Anti-Static treatment (grade not stated), Waterproof, Sunproof (test basis not stated) |
| Flame Retardant | Upon Request (grade not stated) |
| Tear Resistance | High (test standard not stated) |
| Color Fastness | Best (test basis not stated) |
| Service Life | 3-7 years under normal circumstances |
| Repair Method | Easy to repair by welding |
| Recyclable | 100% |
| Standards | ISO 14001, ISO 45001, CE, RoHS |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Mining and tunnelling ventilation duct | Continuous airflow, suspended weight, fire-retardant and anti-static compliance mandatory on site |
| Aviation ground support ducting | Jet blast exposure, explosion-proof ventilation, strict fire safety documentation required |
| Membrane and inflatable structures | Biaxial tension, UV exposure, weld integrity under constant internal pressure |
| Industrial air duct for construction sites | Mechanical abrasion, dust ingress, repeated handling and repositioning |
| Temporary ventilation in confined spaces | Flame propagation risk, static discharge hazard, rapid deployment and retrieval |
What Fire-Retardant Certification Actually Means for Your Ventilation Duct Project
A fire-retardant claim without a test report is a liability, not a feature — we ship documentation that passes site audit.
Mining and tunnelling sites enforce strict ventilation duct compliance, yet fabric often arrives with no supporting test data. The fire-retardant and anti-static treatments on this PVC coated tarpaulin are available upon request, and we provide the corresponding test reports with shipment. [NEED_CITE: fire classification standards for ventilation duct materials in underground mining] When your safety officer asks for proof, the paperwork must already be in hand — not promised after delivery. Selecting PVC coated tarpaulin fire retardant or anti-static certified grades requires matching the specific standard your jurisdiction mandates, whether that is M2, B1, NFPA 701 or DIN 4102.
Coating Adhesion and Weld Integrity for Duct Fabrication
Ventilation ducts rely on welded seams to maintain airtight construction under positive or negative pressure. The laminated and hot-melt coating methods used on this PVC coated tarpaulin deliver strong adhesion between the PVC layer and the high-strength polyester base fabric. This adhesion directly affects how well the seam holds during fabrication and throughout service life. When the weld line fails before the fabric body, the entire duct section must be replaced — a costly interruption underground or on a remote construction site. Confirming the coating method and requesting a peel strength value before ordering prevents this failure mode.
Anti-Static Treatment for Explosion-Prone Environments
Static charge accumulation on ventilation duct fabric creates a discharge risk in environments containing combustible dust or flammable gases. The anti-static treatment option on this PVC coated tarpaulin addresses this requirement, but the surface resistance value must match your site classification. [NEED_CITE: surface resistance thresholds for anti-static materials per IEC 61340] Aviation ground support ducts and mining ventilation systems typically specify different resistance ranges. We supply the test data with each shipment so your compliance team can verify the fabric meets the required threshold before installation begins.
Reading the Specification Sheet Beyond GSM
Weight in grams per square metre tells you how much material is present, but not how it will behave under load. The high-strength polyester mesh base fabric carries the tensile and tear loads, while the PVC coating provides the environmental barrier. A 550gsm fabric with a dense base weave outperforms a 600gsm fabric with a loose weave in tear propagation resistance. The coating method — laminated versus hot-melt — influences peel strength and long-term adhesion differently, which matters when ducts are inflated, deflated and reinstalled repeatedly. Thickness correlates with puncture resistance during handling and installation, but the base fabric denier determines how far a tear will spread once initiated. Understanding these relationships prevents overspecifying on weight while underspecifying on the parameter that actually governs field performance.
When Documentation Gaps Cost More Than the Fabric Itself
A ventilation duct project halted for non-compliance burns through downtime costs that dwarf the material purchase. Flame-retardant grades requested without specifying the standard result in fabric that cannot pass the site inspector’s checklist. [NEED_CITE: DIN 4102 fire classification for building materials and temporary structures] Anti-static fabric supplied without a surface resistance test report gets rejected at the gate. Colour inconsistency between rolls forces rework when duct sections installed side by side show visible mismatch. These are recurring failures in specialist fabric procurement, and each one traces back to incomplete specification at the inquiry stage.
Why Specialist Fabric Buyers Source Here
Nearly 30 years focused on coated fabric gives us deep process control over coating weight and adhesion — the two variables that determine duct longevity. Three full production lines and 36 sets of equipment support bulk orders with consistent on-time delivery for large-scale mining or infrastructure projects. Our 10-person R&D team handles material selection, custom sizing and sample development for non-standard duct diameters and membrane structure geometries. Dedicated QA/QC runs at every production stage, with 100% pre-shipment inspection catching deviations before they leave the factory. Samples are developed within days for custom requirements, letting you validate the fabric against your compliance checklist before committing to a production run.
Documentation & Verification
- Material specification sheet stating GSM, base fabric denier, coating method and treatment selection for each roll
- Test reports for flame-retardant and anti-static grades supplied with shipment documentation package
- ISO 14001, ISO 45001, CE and RoHS certificates included for site audit compliance
- Pre-shipment inspection record confirming coating weight, colour consistency and dimensional accuracy
- Roll packing list with individual roll identification for traceability on multi-roll duct projects
Fabrication, Handling & Storage
- Hot-air welding parameters should be adjusted to the specific GSM and coating method — laminated and hot-melt layers respond differently to heat input
- Store rolls horizontally on pallets to prevent permanent creasing in the polyester mesh base fabric
- Unroll and allow fabric to relax before cutting to minimise dimensional drift during duct fabrication
- Cold crack resistance allows handling in low-temperature environments, but avoid sharp folds during winter transport
- Repair minor field damage by hot-air welding a patch of matching GSM and coating type for seamless duct restoration
- Cut patterns to maximise material utilisation from the 2m or 2.1m roll width, minimising longitudinal weld seams
Requesting a Specification That Matches Your Site Requirements
When specifying PVC coated tarpaulin for ventilation ducts or membrane structures, provide the fire-retardant or anti-static standard your site mandates, the duct diameter or structure dimensions, and the total linear metres required. Let us know whether you need rolls for your own fabrication facility or finished cut-to-size panels with welded seams. If colour consistency across multiple rolls is critical for visible membrane installations, request a batch sample before confirming the production order.
Frequently Asked Questions
Q: What fire-retardant grades are available and which standards do they meet?
A: Fire-retardant treatment is available upon request for this PVC coated tarpaulin. The specific grade and test standard — such as M2, B1, NFPA 701 or DIN 4102 — must be confirmed based on your market and site requirements. We supply the corresponding test report with each shipment so your compliance team can verify the classification matches the standard mandated by your local authority or project specification.
Q: How is anti-static performance measured and what values can be certified?
A: Anti-static treatment is applied to the PVC coating surface and measured by surface resistance testing. The acceptable resistance range depends on your application — mining ventilation ducts typically require different thresholds than aviation ground support systems. We provide the test report with measured values in the shipment documentation. Specify your required standard at inquiry stage so the correct treatment grade is applied during production.
Q: What GSM and thickness are recommended for ventilation duct versus membrane structures?
A: Ventilation ducts generally use mid-range GSM with emphasis on weld strength and flex endurance, while membrane structures may require heavier grades for biaxial tension loads. The available range spans from 350gsm to 750gsm with corresponding thickness options. We recommend requesting samples in your target specification to test weld integrity and structural behaviour before confirming the production grade for your project.
Q: Can custom widths and roll lengths be produced for large-diameter duct projects?
A: Standard roll sizes are 2m × 75m and 2.1m × 50m, but custom widths and lengths can be produced to reduce waste and longitudinal seams in large-diameter duct fabrication. Custom orders require confirmation of GSM, colour and treatment specifications before production scheduling. Request a sample of the custom width to verify handling and welding behaviour on your fabrication equipment before placing the full order.
Q: What compliance documentation is included with each shipment?
A: Every shipment includes a material specification sheet, test reports for any specified fire-retardant or anti-static treatments, ISO 14001, ISO 45001, CE and RoHS certificates, a pre-shipment inspection record and a detailed roll packing list. This documentation package is structured to satisfy site audit requirements for mining, tunnelling, aviation and construction ventilation projects. Additional certificates of origin and customs documentation are provided as needed for your import destination.
