Deep Process Control Over Coating — nearly 30 years focused on coated fabric production, with dedicated QA/QC verifying GSM, coating adhesion and fire-retardant compliance before any roll leaves the line for mining, tunnelling or specialist structure projects.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PVC Laminated Canvas Tarpaulin |
| Base Fabric | Polyester cotton industrial textile, 8–12 strands of fine cotton yarn |
| Coating Method | Laminated |
| Weight | 600 gsm |
| Total Thickness | 0.5 mm / 0.6 mm / 0.7 mm (grade-dependent) |
| Roll Size | 2 m width × 100 m length |
| Finish Product Size | Custom cut to project dimensions or supplied as inventory rolls |
| Colour | Army Green Camouflage / Custom |
| Waterproof | Yes — fully waterproof laminated construction |
| UV Resistance | UV resistant (test basis not stated) |
| Flame Retardant | Available in flame retardant grades — confirm the grade required for your market |
| Anti-Static | Available in anti-static grades — confirm the surface resistance requirement for your installation |
| Anti-Mildew | Mold resistant (test basis not stated) |
| Service Life | Suited to extended outdoor exposure |
| Eyelet & Hem | Rust-proof aluminum eyelets at 1 m intervals, corners and hems reinforced; seams welded and sewn with poly ropes |
| Reinforcement | High-density woven upper layer with weather-resistant low-density laminated backing |
| Key Features | Wear-resistant, corrosion-resistant, tensile-resistant, high- and low-temperature resistant |
| Standards | CE, ISO (verify specific certificates for ordered product line) |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Mining ventilation ductwork | Constant airflow pressure, rock dust abrasion, potential fire hazard — requires verified fire-retardant grade |
| Tunnelling temporary enclosures | High humidity, limited ventilation, mechanical contact with equipment — mold resistance and tensile stability critical |
| Membrane and inflatable structures | Sustained tension loads, UV and weather exposure, structural flexing at anchor points |
| Aviation ground equipment covers | Outdoor weathering, fuel and chemical splash risk, rapid deployment and removal cycles |
| Construction site infrastructure protection | Impact from falling debris, wind uplift on large-area covers, prolonged UV exposure |
Why "Fire Retardant" Without a Grade Is a Compliance Risk on Site
PVC laminated canvas tarpaulin specified for underground or enclosed environments must carry a fire-retardant classification that the site safety officer can verify against local regulation. Stating "fire retardant" on a data sheet without naming the test standard leaves the contractor exposed at inspection.
Mining and tunnelling sites typically require documentation showing compliance with a recognised classification system before any fabric enters the ventilation circuit. When the certificate does not match the installed material, the entire duct run may need to be replaced before commissioning can proceed. We have seen projects halted at the pre-handover audit stage because the fabric supplier provided a generic statement rather than a grade-specific test report [NEED_CITE: fire classification standards for ventilation fabrics in underground mining].
Matching Duct Fabric to Airflow and Pressure Requirements
Ventilation ducts in mining and tunnelling operate under continuous positive or negative pressure, and the PVC laminated canvas tarpaulin forming the duct wall must resist both bursting force and collapse. The high-density woven upper layer in this fabric provides the tensile backbone, while the laminated PVC coating seals the weave against air leakage. Duct diameters and operating pressures vary by project, so confirming the required burst pressure and specifying the appropriate GSM and base fabric density is essential before production begins.
Fire-Retardant and Anti-Static Compliance for Enclosed Environments
Underground installations demand more than a general claim of fire resistance. The PVC laminated canvas tarpaulin must be tested to a classification that the regulating authority recognises — whether that is a national mining safety code or an international standard such as those covering building material fire performance [NEED_CITE: DIN 4102 fire classification for building materials]. Anti-static surface resistance is equally important in environments where combustible dust or gas may be present. Both properties must be confirmed with test documentation before the material is approved for site use, and the buyer should specify the exact grade at inquiry stage to avoid substitution with a non-compliant roll.
Reading the Specification Sheet Beyond GSM
GSM tells you the mass per square metre, but it does not reveal how that mass is distributed between base fabric and coating. A 600 gsm PVC laminated canvas tarpaulin with a high base-fabric proportion will generally deliver better tear and tensile performance than one where most of the weight sits in the coating layer. The laminated construction method bonds the PVC film to the woven substrate under heat and pressure, which typically yields higher peel strength than simple adhesive bonding and supports reliable heat-welding during duct fabrication. Thickness options of 0.5 mm, 0.6 mm and 0.7 mm reflect different coating-build levels; the correct choice depends on the mechanical exposure the finished duct or membrane will face. Rust-proof aluminum eyelets spaced at one-metre intervals distribute tie-down and suspension loads across the hem, reducing point stress that could otherwise initiate a tear in high-wind or high-vibration installations [NEED_CITE: tensile and tear test methods for coated fabrics per ISO 1421].
The Hidden Cost of Specifying on Price Alone
When a ventilation duct or membrane structure is specified primarily on cost per square metre, the result is often a fabric that passes the quotation stage but fails during installation or shortly after commissioning. Lightweight base fabric concealed under a thick coating may reach the target GSM but will tear at suspension points once the duct pressurises. Flame-retardant treatments applied without third-party verification may not survive the first safety audit, forcing a full material replacement at the contractor’s expense. Colour inconsistency between rolls can also compromise visual uniformity on large membrane structures where panels are installed side by side [NEED_CITE: coating adhesion failure modes in laminated technical textiles].
Why Technical Buyers Source This Fabric Here
Three full production lines and 36 sets of professional equipment allow this PVC laminated canvas tarpaulin to be manufactured in bulk while maintaining roll-to-roll coating consistency — critical when a single duct run requires multiple rolls with matched weight and colour. A 10-person R&D team handles material selection, custom sizing and sample development, producing samples within days so that mining and tunnelling contractors can verify fire-retardant grade and anti-static performance before committing to a production order. Dedicated QA/QC at every production stage with 100 % pre-shipment inspection means GSM, coating adhesion and dimensional accuracy are confirmed against the purchase specification before dispatch. Custom widths and lengths are available to match exact duct diameters or membrane panel dimensions, minimising on-site cutting and weld seams. Documentation — including material specification sheets, test reports and certificates of origin — accompanies each shipment to support site compliance and customs clearance.
Documentation & Verification
- Material specification sheet stating GSM, base fabric composition, coating type and thickness for each roll
- Fire-retardant and anti-static test reports matched to the specific product batch where applicable
- ISO and CE certificates confirming the management system under which the fabric was produced
- Pre-shipment inspection record verifying weight, dimensions and visual quality before dispatch
- Roll packing list and certificate of origin for customs and site receiving documentation
Fabrication, Handling & Storage
- Heat-weld seams at manufacturer-recommended temperature to match the laminated PVC coating’s melt behaviour and avoid delamination
- Position rust-proof aluminum eyelets at reinforced hem sections only, avoiding mid-panel placement that weakens the woven base fabric
- Store rolls horizontally on pallets in a dry, shaded area to prevent permanent creasing of the 600 gsm laminated surface
- Allow cold-stored rolls to reach ambient temperature before unrolling to prevent cracking of the PVC laminate in low-temperature conditions
- Use mild detergent and soft brush for cleaning; avoid solvent-based cleaners that may degrade the laminated PVC coating surface
What to Include in Your Inquiry
Provide the installation environment — underground mine, tunnel, open-air construction site or aviation facility — along with the fire-retardant classification and anti-static surface resistance your site safety plan requires. Specify the duct diameter or membrane panel dimensions, the total linear metres or square metres needed, and whether you require finished fabricated panels or roll stock only. If colour matching across multiple rolls is important for your project, state the reference colour and request a production sample before the full order enters the line.
Frequently Asked Questions
Q: Does this PVC laminated canvas carry a fire-retardant grade suitable for mining or tunnelling ventilation use?
A: The fabric is available in flame-retardant grades, but the specific classification must be confirmed at inquiry stage to match your site regulation. We supply test reports tied to the production batch. Provide your required standard — such as a national mining safety code or an international building material classification — and we will verify availability and documentation before you commit to the order.
Q: What anti-static certification is available if the installation environment requires it?
A: Anti-static grades can be produced for environments where combustible dust or gas is present. The required surface resistance value must be stated in your inquiry so we can match the formulation and provide a corresponding test report. This ensures the PVC laminated canvas tarpaulin meets your site safety plan without delays at the pre-commissioning audit.
Q: How is GSM and coating weight verified on arrival against the quotation?
A: Each roll undergoes weight verification during the pre-shipment inspection, and the results are recorded on the inspection report that ships with your order. On arrival, you can conduct a sample cut-and-weigh check to confirm the 600 gsm specification. Any discrepancy is addressed through the after-sales support channel before installation begins.
Q: Can the fabric be supplied in custom widths and lengths to match duct or membrane structure dimensions?
A: Yes. The standard roll size is 2 m × 100 m, but custom widths and lengths are available to reduce on-site cutting and welding. Provide your duct diameter or panel dimensions at inquiry stage, and the R&D team will confirm the maximum width and recommend the most material-efficient roll configuration for your project.
Q: What documentation ships with the order?
A: Every shipment includes a material specification sheet, roll packing list, certificate of origin and pre-shipment inspection record. Where fire-retardant or anti-static grades are specified, the corresponding test reports are included. ISO and CE certificates covering the production facility are available on request to support site compliance submissions and customs clearance procedures.
