Polyester Fiber for Concrete Reinforcement
Reduce Cracking. Improve Durability. Build Stronger Concrete.
Tenabrix Polyester Fiber is a high-performance synthetic fiber designed to improve the durability, toughness, and crack resistance of concrete and mortar. Engineered for demanding construction applications, our polyester fibers help reduce plastic shrinkage cracking, enhance impact resistance, and improve the long-term performance of concrete structures.
- Factory-Direct Pricing
- Certified ISO 9001 & B/T19001-2016 Production
- Custom Fiber Lengths and Diameters
- Fast Sample Delivery
- Worldwide Shipping
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ISO & CABR Certified
B/T19001-2016 • ICBO
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Low MOQ
Start at 1,000 kg
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Free Sample
Test quality before order
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OEM Packaging
Your brand, your spec
Which One to Choose?
Two Strength Grades. One Reliable Partner.
Choose the grade that matches your project requirements. Both available in 3mm–25mm lengths, custom on request.
⚡High Performance

High Tensile Strength Polyester Fiber
| Composition | Organic dibasic acid and diol |
| Diameter | 12, 15, 18 μm |
| Length | 3–25 mm (Customized) |
| Melting Point | 255–265 ℃ |
| Tensile Strength | ≥ 1100 MPa |
| Elastic Modulus | ≥ 9000 MPa |
| Elongation | 15–20% |
| Appearance | Bright white |
Best for: Bridge decks, airport runways, heavy-load industrial floors, tunnel linings, high-fatigue infrastructure.

Normal Tensile Strength Polyester Fiber
💡Cost-Effective
| Composition | Organic dibasic acid and diol |
| Diameter | 12, 15, 18 μm |
| Length | 3–25 mm (Customized) |
| Melting Point | 255–265 ℃ |
| Tensile Strength | ≥ 500 MPa |
| Elastic Modulus | ≥ 3500 MPa |
| Elongation | 10–15% |
| Appearance | Milky white |
Best for: Residential & commercial floors, precast panels, standard pavement, low-rise slabs, cost-sensitive projects.
- Diameter: 12 / 15 / 18 μm
- Length: 3–25 mm (custom)
- ASTM D3822 / D123 Tested
- ISO 9001 Certified
About Tenabrix
China's Leading Polyester Fiber Manufacturing Factory
As a dedicated fiber manufacturer, Tenabrix supplies polyester fibers directly from our production facility. This allows us to maintain competitive pricing, stable quality, and reliable lead times without the added costs of trading intermediaries.
- Factory-Direct Pricing
- Stable Long-Term Supply
- Customized Fiber Specifications
- Fast Sample Delivery
- Worldwide Shipping

Key Benefits
Why Procurement Managers Choose TenaBrix PET Fiber
Engineered for performance. Built for reliable supply.
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Factory-Direct Advantage
Tenabrix™ polyester fibers are manufactured directly in our own facility, ensuring competitive pricing, reliable supply, and consistent quality without middlemen.
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Certified Quality Standards
Manufactured under B/T19001-2016 and ISO 9001, ensuring every batch meets strict quality requirements for concrete reinforcement.
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Large-Scale Production Capacity
6 automated production lines and 10 hot roller specifications ensure fast, efficient large-volume production for any project size.
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Massive Daily Stock
Maintain 500 tons of stock daily for quick delivery and uninterrupted supply to keep your projects on schedule.
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Customizable Fiber Solutions
Available in multiple lengths, diameters, and packaging, tailored to your specific concrete, mortar, or precast application needs.
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Fast Sampling
Receive samples, guidance, and expert support to select the optimal fiber solution for your project.
Where It’s Used
High-Performance PET Fibers for Versatile Construction Solutions
Tenabrix Polyester Fiber is widely used in:

Industrial Flooring
Improve crack resistance and durability in warehouses, factories, and logistics centers.

Bridge Decks
Minimize shrinkage cracking and improve long-term durability.

Precast Concrete Products
Enhance product quality, reduce cracking, and improve handling strength.

Roads and Pavements
Increase resistance to cracking and surface deterioration.

Shotcrete and Tunnel Construction
Provide additional reinforcement and toughness in sprayed concrete applications.

Residential and Commercial Concrete
Improve performance in slabs, driveways, sidewalks, and foundations.
Select Packaging You Prefer
Packaging & Global Logistics
Two packaging options. Optimized for your supply chain.
Standard PE Bag (Bulk)
| 20ft Container | ≈ 12 tons |
| 40ft HC Container | ≈ 26 tons |
| Bag Type | Standard PE bag |
| Best For | Large-volume buyers, distributors |
Water-Soluble Bags + Cartons
| Per Carton | 54 kg |
| 20ft Container | ≈ 9.6 tons |
| 40ft HC Container | ≈ 25.92 tons |
| Best For | Dust-free mixing, job-site convenience |
Lead time: 7–10 working days. FOB Shanghai / CIF available to major ports worldwide.
Get a Quote for Your Project
Looking for a reliable polyester fiber supplier?
Our team can help you select the right fiber specification based on your concrete application, project requirements, and performance goals.
Trusted Worldwide
What Our Partners Say
Omer I.
Procurement Director, Brazil
Lim K.H.
Managing Director, Turkey
Daniel W.
Quality Manager, Canada
4.8
Based on 47 verified reviews
Trusted by buyers in 30+ countries
4.9
Product Quality
4.8
On-Time Delivery
4.7
Technical Support
Common Questions
Frequently Asked Questions
What is polyester fiber used for in concrete?
Polyester fiber is primarily used to control plastic shrinkage cracking, improve durability, enhance toughness, and extend the service life of concrete structures.
Can polyester fiber replace steel reinforcement?
Polyester fiber is typically used as secondary reinforcement for crack control and durability enhancement. Whether it can replace steel reinforcement depends on the structural design requirements.
What fiber lengths are available?
We offer customized lengths ranging from 3 mm to 25 mm to meet different concrete and mortar applications.
Will polyester fiber affect concrete workability?
When used at recommended dosage rates, polyester fiber disperses evenly and has minimal impact on workability.
Do you provide samples?
es. Samples are available for testing and evaluation before bulk orders.
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