Reference date: May 2026 | Based on industry standards for laminated woven fabrics
Overview
Heavy-duty tarpaulin fabric consists of a woven polypropylene or polyethylene base cloth laminated on one or both sides with a polyethylene film. This construction provides tensile strength, tear resistance, and waterproofing. This document summarizes typical specifications, material options, and selection criteria for industrial tarpaulin fabrics.
1. Specification Tiers by GSM
Tarpaulin fabrics are manufactured in a range of GSM values. The following tiers represent typical specifications found in industry practice:
Standard Industrial (180–220 GSM)
Applications: Short-term agricultural covers, general cargo protection, temporary storage. Typical tensile strength: 800–1,200 N/5cm.
Professional Grade (250–400 GSM)
Applications: Construction site enclosures, long-haul truck tarpaulins, heavy equipment storage. Typical tensile strength: 1,200–2,000 N/5cm.
Extreme Duty (450–600+ GSM)
Applications: Offshore containment, disaster relief shelters, permanent industrial membranes. Typical tensile strength: 2,000–3,500 N/5cm.
2. Key Material Properties
The following properties are commonly specified for heavy-duty tarpaulin fabrics. Test methods vary by region and application.
| Property | Typical Range | Notes |
|---|---|---|
| GSM (mass per unit area) | 180 – 650 g/m² | Higher GSM = greater durability and weight |
| Tensile strength (warp & weft) | 800 – 3,500 N/5cm | Measured per ISO 13934 or ASTM D5035 |
| Tear strength | 50 – 400 N | Trapezoid method, ASTM D4533 |
| Hydrostatic resistance | ≥ 200 cm H₂O | Measured per ISO 811 or AATCC 127 |
| UV resistance | ≥ 70% retention at 500h | ASTM D4355 |
| Low temperature flexibility | -20°C to -40°C | PE-based fabrics perform better at low temperatures |
3. Material Options: PP vs. PE Base Fabric
Tarp fabrics are manufactured from either polypropylene (PP) or polyethylene (PE) base cloth, or blends of both. The lamination layer is typically PE for waterproofing.
PP (Polypropylene) Base
Higher tensile strength, stiffer handle, lower creep. Preferred for heavy-load tarpaulins where dimensional stability is critical.
PE (Polyethylene) Base
Softer, more flexible, better low-temperature performance. Preferred for cold climates and applications requiring drapability.
PP/PE Blend
Combines strength and flexibility. Used for general-purpose tarpaulins where both properties are beneficial.
4. Lamination Options
Lamination refers to the PE film applied to the woven base cloth. The number and type of lamination layers affect waterproofing and durability.
- Single-side lamination: PE film on one side only. Lower cost, but the uncoated side may wick moisture.
- Double-side lamination: PE film on both sides. Fully waterproof, more durable, recommended for outdoor applications requiring extended service life.
- Reinforced lamination: Additional scrim or cross-layer for high-tear applications.
5. UV Stabilization
For outdoor tarpaulin applications exceeding 3–6 months, UV stabilization is required. UV stabilizers (carbon black or HALS) are added to both the base fabric tapes and the lamination layer to prevent degradation from sunlight exposure.
Testing according to ASTM D4355 measures retained tensile strength after accelerated UV exposure. A minimum retention of 70% after 500 hours is a common specification for outdoor tarpaulin fabrics. For applications requiring 2+ years of outdoor exposure, 1,000-hour UV testing may be specified.
6. Fabric Widths and Roll Sizes
Tarpaulin fabric rolls are available in a range of widths. Wider rolls reduce the number of seams required for large covers.
| Roll Width | Typical Roll Length | Application |
|---|---|---|
| 1.0 – 2.0 m | 50 – 100 m | Small covers, custom fabrication |
| 2.0 – 3.5 m | 50 – 100 m | Truck tarpaulins, standard covers |
| 3.5 – 5.1 m | 50 – 100 m | Large industrial covers, pond liners |
7. Flame Retardant Specifications
For construction site enclosures, event tents, and certain industrial applications, flame retardant (FR) treatment may be required. FR tarpaulin fabrics are typically tested to standards such as NFPA 701 (US), CAN/ULC-S109 (Canada), or DIN 4102 B1 (Germany).
FR treatment can be applied during lamination or as a coating. Buyers should request a test report specific to the required standard for their project jurisdiction.
8. Applicable Standards
- ASTM D5035: Tensile strength of textile fabrics (strip method).
- ASTM D4533: Trapezoid tear strength.
- ASTM D4355: UV degradation resistance.
- ISO 13934: Tensile strength of fabrics.
- ISO 811: Hydrostatic pressure test (water resistance).
- ISO 9001: Quality management system.
Information to Prepare Before Ordering
To receive a quote, the following information is typically requested:
- Application type: truck tarpaulin, construction enclosure, storage cover, or other
- Required GSM or tensile strength
- Roll width and roll length
- Color (standard: blue, green, silver, white, black; custom colors available)
- Lamination: single-sided or double-sided
- UV stabilization requirement (expected outdoor exposure duration)
- Flame retardant requirement (yes/no, specify standard)
- Estimated quantity (rolls, tons, or containers)
- Destination port and preferred trade term
References
- ASTM D5035. Standard Test Method for Breaking Force and Elongation of Textile Fabrics. ASTM International.
- ASTM D4533. Standard Test Method for Trapezoid Tearing Strength of Geotextiles. ASTM International.
- ASTM D4355. Standard Test Method for Deterioration of Geotextiles by Exposure to Light, Moisture and Heat. ASTM International.
- ISO 13934-1. Textiles — Tensile properties of fabrics — Part 1: Strip method. International Organization for Standardization.
- NFPA 701. Standard Methods of Fire Tests for Flame Propagation of Textiles and Films. National Fire Protection Association.
Article ID: TARP-SPEC-001 | Last updated: May 2026