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.

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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-pet-fiber

High Tensile Strength Polyester Fiber

CompositionOrganic dibasic acid and diol
Diameter12, 15, 18 μm
Length3–25 mm (Customized)
Melting Point255–265 ℃
Tensile Strength≥ 1100 MPa
Elastic Modulus≥ 9000 MPa
Elongation15–20%
AppearanceBright white

Best for: Bridge decks, airport runways, heavy-load industrial floors, tunnel linings, high-fatigue infrastructure.

normal-tensile-pet-fiber

Normal Tensile Strength Polyester Fiber

💡Cost-Effective

CompositionOrganic dibasic acid and diol
Diameter12, 15, 18 μm
Length3–25 mm (Customized)
Melting Point255–265 ℃
Tensile Strength≥ 500 MPa
Elastic Modulus≥ 3500 MPa
Elongation10–15%
AppearanceMilky white

Best for: Residential & commercial floors, precast panels, standard pavement, low-rise slabs, cost-sensitive projects.

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.

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.

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-floor

Industrial Flooring

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

Cross-sea-bridge

Bridge Decks

Minimize shrinkage cracking and improve long-term durability.

macro fiber for Precast-Concrete

Precast Concrete Products

Enhance product quality, reduce cracking, and improve handling strength.

Concrete Pavement

Roads and Pavements

Increase resistance to cracking and surface deterioration.

Shotcrete-construction

Shotcrete and Tunnel Construction

Provide additional reinforcement and toughness in sprayed concrete applications.

Residential and Commercial Concrete

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 TypeStandard PE bag
Best ForLarge-volume buyers, distributors

Water-Soluble Bags + Cartons

Per Carton54 kg
20ft Container≈ 9.6 tons
40ft HC Container≈ 25.92 tons
Best ForDust-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

“Their COA is always complete and the tensile strength is consistently above 1,100 MPa on every test. Our contractor clients have noticed the difference in floor finish quality.”

Omer I.

Procurement Director, Brazil

“As a chemicals distributor in Southeast Asia, reliable supply is everything. TenaBrix delivers on time, every time — even during the 2023 peak season. Their technical team helped us optimize the dosage rate for a tender project, which we won. That alone paid for our first two containers.”

Lim K.H.

Managing Director, Turkey

“We tested PET fiber from five suppliers before landing on TenaBrix. The dispersion at 0.9 kg/m³ is noticeably better — no fiber balls in the mix, no clumping. Our precast panels have zero rust staining, which our architect clients love. It is now our sole-approved PET fiber specification.”

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.

 
 
 

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.

We offer customized lengths ranging from 3 mm to 25 mm to meet different concrete and mortar applications.

When used at recommended dosage rates, polyester fiber disperses evenly and has minimal impact on workability.

es. Samples are available for testing and evaluation before bulk orders.

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