Single Warp Fiberglass Fabric (UD / Unidirectional Fabric)
Setting the global standard for directional structural reinforcement, POLYMER operates as a premier unidirectional fiberglass fabric manufacturer. Our advanced single warp fiberglass fabric (widely recognized as high-performance UD Fabric) is meticulously engineered by aligning continuous direct rovings strictly parallel in the 0° direction, delivering maximum longitudinal strength without the added weight of transverse fibers.
Securely bound by non-structural polyester stitching, this zero-crimp 0 degree unidirectional glass fabric completely eliminates internal fiber friction to provide unparalleled fatigue resistance. Serving as the ultimate fiberglass UD fabric for pultrusion, heavy-duty wind turbine blades, and marine boat building, it guarantees exceptionally fast wet-out and flawless compatibility with Epoxy, Vinyl Ester, and Polyester resin systems.
Setting the global standard for directional structural reinforcement, POLYMER's single warp fiberglass fabric—universally recognized in the composites industry as high-performance Unidirectional Fabric (UD Fabric)—is the ultimate solution for extreme load-bearing applications. As a premier unidirectional fiberglass fabric manufacturer, we meticulously construct this material by aligning continuous direct rovings strictly parallel in the 0° (longitudinal) direction, locking them securely in place with a fine, non-structural polyester stitching yarn.
This 0 degree unidirectional glass fabric is purposefully engineered to deliver maximum tensile strength exactly where it is needed, without the added weight of transverse fibers. Depending on your specific tooling requirements, our UD fiberglass fabric supplier capabilities allow us to customize the fabric by stitching it together with an additional layer of chopped strands or non-woven tissue. Exhibiting seamless compatibility with Polyester, VE, and Epoxy resins, it performs flawlessly in fiberglass UD fabric for pultrusion, filament winding, and advanced vacuum infusion processes.
Whether you are manufacturing extreme-load wind turbine blades or pulling continuous architectural profiles, our engineered UD fabrics secure your structural integrity:
For Continuous Pultrusion Lines: Leverage our fiberglass UD fabric for pultrusion. The straight 0° rovings provide immense longitudinal stiffness, preventing tear-outs in the die and ensuring flawless, high-strength I-beams, tool handles, and insulating rods.
For Wind Energy & Aerospace: Deploy our unidirectional fiberglass for wind blades. The complete absence of crimp delivers ultimate fatigue resistance, forming the critical structural spars and load-bearing backbones of modern wind turbines.
For High-Performance Marine Hulls: Utilize our UD fiberglass fabric for boat building to reinforce the keel and stringers. It adds massive directional stiffness to luxury yachts and racing boats without adding unnecessary laminate weight.
For Regional Raw Material Distributors: Source directly from a verified bulk UD fiberglass fabric roll supplier. We offer weights from 336g up to 900g, customizable slit widths, and highly competitive factory-direct export pricing.
With 100% of the structural rovings aligned in the 0° direction, the fabric delivers extreme tensile strength and stiffness exactly where the load-bearing stress occurs.
The straight fibers do not bend or interlace. This eliminates internal friction and micro-cracking, resulting in the ultimate fatigue resistance for dynamic components.
By removing unnecessary transverse (90°) fibers, fabricators can build incredibly stiff and robust structural parts while significantly reducing the overall weight of the composite.
Can be seamlessly stitched together with chopped strand layers or polyester veils to prevent transverse splitting and improve surface finish in a single lay-up step.
| Code | Weight (g/m²) | 0° Warp (g/m²) | 90° Weft (g/m²) | Chopped Strands (g/m²) | Polyester Tissue (g/m²) | Layer(s) |
|---|---|---|---|---|---|---|
| PLM336 | 336 | 336 | - | - | - | 1 |
| PLM400 | 400 | 400 | - | - | - | 1 |
| PLM420 | 420 | 400 | - | - | - | 1 |
| PLM560 | 560 | 560 | - | - | - | 1 |
| PLM600 | 600 | 420 | 180 | - | - | 2 |
| PLM625 | 625 | 400 | - | 225 | - | 2 |
| PLM625/N45 | 670 | 400 | - | 225 | 45 | 3 |
| PLM672 | 672 | 672 | - | - | - | 1 |
| PLM800 | 800 | 672 | 128 | - | - | 2 |
| PLM900 | 600 | 600 | - | 300 | - | 2 |
* Remark: Other weights, custom slit widths, and complex combinations of chopped strands/tissues are available to order based on your custom structural requirements.

Fiberglass UD fabric for pultrusion delivering extreme longitudinal stiffness for architectural I-beams and grating.

Unidirectional fiberglass for wind blades ensuring absolute fatigue resistance and strength for massive spar caps.

UD fiberglass fabric for boat building utilized to reinforce hull stringers and keels without adding excess weight.

Heavy-duty 0° alignment fabrics drastically improving the burst strength and pressure resistance of chemical pipes.
Why Partner with POLYMER?
Custom Slit Widths: 200mm up to 2600mm to minimize your cutting waste.
Variable Weights: Adjustable g/m² density based on your load-bearing requirements.
Complex Structures: Seamlessly stitch chopped strands or polyester veils to the UD base.
Testing Metrics: Tested for longitudinal tensile strength, moisture content, and wet-out speed.
Consistency: Guaranteed perfectly straight 0° fiber alignment across the entire roll.
Traceability: Barcode tracking on every roll for full production traceability.
Robust Packaging: Shrink-wrapped, carton-protected, and palletized to prevent transit damage.
Lead Time: Rapid turnaround for bulk container orders to major global ports.
Free Samples: Available for factory trial and pultrusion compatibility testing.



Submit your application and molding process. Our polymer engineers will provide a material selection guide and dispatch free test samples rapidly.
Whatsapp: +86-18068598369
+86-13401564599
E-mail: sales@czpolema.com
renato@czpolema.com
ADD: No. 366 Heping Middle Road, Tianning District, Changzhou City, Jiangsu Province, China