Proven Coating Control — Nearly 30 years of HDPE weaving and LDPE lamination process mastery ensures roll-to-roll GSM and colour consistency across bulk PE tarpaulin orders.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PE Tarpaulin |
| Coating Material | HDPE weaving with LDPE lamination on both sides |
| Weight (GSM) | 50 gr/m² ~ 220 gr/m² available (confirm the grade for your application) |
| Total Thickness | 0.2–0.4 mm / 8 mil–16 mil |
| Roll Width Options | 6 ft, 8 ft, 10 ft, 12 ft or 2 m, 4 m, 6 m |
| Roll Length Options | 100 yards, 100 meters, or custom |
| Finished Edge Reinforcement | PP rope in hem on all four sides |
| Eyelets | Galvanized, spaced every 3 ft or 1 meter |
| Corner Reinforcement | Reinforced plastic corners |
| Colour Options | Blue, Blue/Orange, Green, Grey, Black, Clear, Grey/Green, Orange, or custom |
| Key Features | Waterproof, washable, tear resistant, mildew proof, anti-aging, UV treatment available (test basis not stated — confirm grade required for your market) |
| Standards | ISO, CE (company-level certification) |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Mining ventilation duct fabrication | Underground airflow pressure, continuous flexing at bends, fire-retardant and anti-static compliance required on site |
| Tunnelling enclosure barriers | Dust containment, moisture exposure, repeated installation and removal cycles |
| Inflatable and membrane structure covers | Internal air pressure load, UV exposure during outdoor deployment, welded seam integrity at stress points |
| Aviation temporary hangar liners | Large-span fabric tensioning, wind load transfer through eyelets and hems, colour coding for zone identification |
| Construction equipment stockpile covers | Abrasion from sharp-edged machinery, standing water pooling, UV degradation over extended outdoor storage |
| Industrial transportation wraps | Road vibration, tie-down strap friction at eyelet points, weather exposure during multi-day transit |
Why Roll Consistency Matters More Than Quoted GSM for Ventilation Duct Fabric
A ventilation duct fails at the seam long before the fabric tears when adjacent rolls vary in thickness or coating weight.
Specifying PE tarpaulin for duct fabrication based on a single GSM figure creates a false sense of security. In practice, coating weight can drift across a production run, and a roll that measures lighter than its label will produce a duct section with reduced tear resistance at exactly the point where internal air pressure concentrates stress. For mining and tunnelling operations, that variance can mean the difference between passing a site safety audit and shutting down a ventilation circuit mid-shift [NEED_CITE: tensile and tear test methods for coated fabrics per ISO 1421]. Jinan Jinxiang addresses this by running 100% pre-shipment inspection on every roll, verifying GSM and coating adhesion before the material leaves the factory floor.
Weave Density and Lamination Weight: The Two Variables That Actually Determine Duct Performance
When fabricating flexible ventilation ducts, the HDPE base fabric knitting density and the LDPE lamination weight on each side work together to define how the material behaves under continuous internal pressure. A tighter weave resists tear propagation at duct bends, while balanced double-side lamination prevents delamination when the fabric flexes repeatedly. PE tarpaulin ventilation and technical fabric specified without both parameters leaves the fabricator guessing which variable carries the structural load.
Colour and Print Customisation for Site Identification and Zone Coding
Underground and surface-level ventilation systems frequently require colour-coded duct sections to differentiate intake from return airflows or to mark restricted zones. This PE tarpaulin is available in multiple stock colours and supports custom colour matching and pattern printing for branding or regulatory signage. Consistent colour across every roll in a single order is critical — a visible shade shift between two duct sections joined on site draws inspector attention and can trigger unnecessary compliance questions [NEED_CITE: mine ventilation fabric colour coding standards].
Reading the Specification Sheet: What GSM, Thickness, and Knitting Density Mean Together
A common mistake in duct fabric procurement is treating GSM as the sole indicator of strength. In reality, a 180 gr/m² PE tarpaulin with a loose 8×8 knitting density may tear more easily than a 140 gr/m² fabric woven at 12×12, because the tighter weave distributes point loads across more yarns. Thickness, measured here between 0.2 and 0.4 mm, reflects the combined LDPE coating build on both faces — thicker coating improves abrasion resistance at duct-to-duct friction points but adds weight that increases sag between support rings. For inflatable membrane structures, the balance shifts: lower GSM reduces the dead load on the air blower system while sufficient lamination thickness maintains weld seam integrity at panel joints. Roll widths up to 6 m allow fabricators to cut full duct circumference panels without longitudinal welds, eliminating the most common failure line in field-assembled ventilation tubing. Selecting the right grade means matching all three variables — GSM, weave count, and thickness — to the specific airflow pressure and structural span of the project.
The Hidden Cost of Specifying Duct Fabric on Price Per Kilogram Alone
Procurement teams that evaluate PE tarpaulin roll stock purely on unit cost frequently discover downstream expenses that erase the initial saving. A roll with insufficient LDPE coating weight will produce welded seams that peel apart under duct operating pressure, forcing on-site repairs that delay ventilation commissioning. Batch colour inconsistency between rolls delivered in the same container means two adjacent duct sections look mismatched once hung, prompting rejection by the site supervisor. And fabric supplied without the fire-retardant or anti-static certification that the mine safety plan demands will not pass the pre-installation audit, leaving the contractor sourcing replacement material on emergency lead times [NEED_CITE: underground ventilation duct fire-retardant compliance requirements]. These failures are preventable when the specification conversation starts with application conditions rather than a target price per kilogram.
Why Fabricators Source Ventilation Duct Material From This Production Line
Jinan Jinxiang operates three full production lines with 36 sets of professional equipment dedicated to coated fabric, giving ventilation duct fabricators access to bulk roll capacity without extended queue times. The 10-person R&D team develops custom colour matches and sample panels within days, allowing fabricators to validate weld parameters and seam strength before committing to a full container order. Every roll undergoes dedicated QA/QC at each production stage with 100% inspection before shipment — GSM, coating weight, and colour are verified against the purchase specification, not assumed from the batch ticket. Roll widths up to 6 m and lengths to 100 m are held in standard production rotation, and custom dimensions are supported without the prohibitive minimums that constrain smaller duct fabrication projects. ISO and CE certification underpins the documentation package that accompanies every export shipment.
Documentation & Verification
- Material specification sheet confirming GSM, HDPE base fabric weave, and LDPE coating weight per roll
- UV treatment test report supplied where UV stabiliser grade has been specified for the order
- Pre-shipment inspection record showing GSM verification and roll-to-roll colour consistency check
- Fire-retardant or anti-static certification provided when the grade has been confirmed at inquiry stage
- Roll packing list with individual roll weights and dimensions for container loading reconciliation
- Certificate of origin and customs documentation prepared for North America, Europe, and Asia export lanes
Fabrication, Handling & Storage
- Set hot-air weld temperature to match the LDPE lamination thickness — the 0.2–0.4 mm range requires different dwell times across the grade spectrum
- Space galvanized eyelets at 1 m intervals for duct sections under high internal pressure to distribute anchor load evenly through the PP-rope reinforced hem
- Store rolls horizontally on padded racks to prevent permanent creasing in the HDPE weave that can weaken the lamination bond at the fold line
- Allow cold-stored rolls to reach ambient temperature before unrolling to avoid micro-cracking in the LDPE coating layer
- Use mild detergent for field cleaning — solvent-based cleaners can degrade the LDPE surface and reduce weld adhesion on repaired sections
- Cut panels from the roll centre outward to maximise usable width from 6 m stock and minimise offcut waste on large duct circumference patterns
What We Need to Quote Your Ventilation Duct Fabric Accurately
To specify the correct PE tarpaulin grade for your duct or membrane structure project, provide the operating airflow pressure and duct diameter so we can recommend the appropriate GSM and knitting density. Confirm whether your site safety plan mandates a specific fire-retardant or anti-static grade, and note the regulatory standard your inspector will reference. Specify roll width, roll length, and colour requirements — including whether multiple rolls in the same order must match within a defined shade tolerance — so we can plan production accordingly.
Frequently Asked Questions
Q: What fire-retardant or anti-static grades are available for mine ventilation duct compliance?
A: PE tarpaulin can be produced with fire-retardant and anti-static treatments to meet various mine and tunnelling safety standards. The specific grade must be confirmed at inquiry stage based on your site’s regulatory requirements. We supply the corresponding test report and certification with the shipment so your compliance documentation is complete before installation begins.
Q: How do you verify that roll GSM matches the specification we agreed on?
A: Every roll undergoes GSM verification during our 100% pre-shipment inspection. We check coating weight and base fabric density against the values stated on your material specification sheet. The inspection record is included in the dispatch documentation, giving you a traceable quality confirmation before the material arrives at your fabrication facility.
Q: Can we order custom roll widths and colours for duct fabrication projects?
A: Yes. Roll widths up to 6 m and lengths to 100 m are available, along with custom dimensions. Colour matching and pattern printing are supported for zone coding or branding. Custom orders require sample approval before bulk production to confirm shade consistency and coating weight across the run.
Q: How do you handle batch colour consistency across multiple rolls in one order?
A: Roll-to-roll colour consistency is checked during the in-process QA stage and again at the 100% pre-shipment inspection. For orders requiring strict shade matching across all rolls — such as visible duct sections in public-facing structures — we flag this requirement on the production ticket and hold reference samples for comparison at every checkpoint.
Q: What hem and eyelet reinforcement options are available for high-stress duct joints?
A: Finished PE tarpaulin panels ship with PP rope reinforced hems on all four edges and galvanized eyelets spaced at 3 ft or 1 m intervals. For duct joints and structural anchor points subject to concentrated load, spacing and reinforcement can be adjusted to your specification. Corner reinforcement with plastic caps is standard on finished panels to prevent tear initiation at high-stress intersections.
