HPM® UF PP
High-Dispersion PP Microfiber
Low Dosage and High Performance
Since 2002, we have specialized in concrete crack resistance, waterproofing, and anti-corrosion technologies.
PIONEER® Ultra-Fine Polypropylene Fiber for Concrete
Ultra-Fine Polypropylene Fibers with Low Dosage and High Performance
What Is PIONEER® HPM® UF PP Ultra-Fine Fiber?
PIONEER® HPM® UF PP is a high-performance ultra-fine polypropylene fiber engineered for concrete and mortar reinforcement. Manufactured from 100% virgin polypropylene, these micro monofilament fibers (≈18 μm diameter) provide an extremely high fiber count per cubic meter, forming a dense 3D network that:
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Minimizes plastic shrinkage cracking
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Enhances concrete durability
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Maintains excellent workability and smooth finishing
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Integrates seamlessly in plaster, renders, repair mortars, and industrial floors
Ideal for precast elements, overlays, SCC (self-compacting concrete), industrial slabs, pavements, and dry-mix mortars.
Looking to reduce cost while improving concrete performance?
Get a cost comparison and dosage recommendation for your project.
Contact us at sales@pioneerfibre.com
Technical Specifications of Our Ultra-Fine PP Fibers
Explore the essential technical characteristics that define the performance of PIONEER® micro synthetic fibers:
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Material: 100% virgin polypropylene
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Type: Ultra-fine monofilament micro synthetic fiber
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Specific Gravity: 0.91 g/cm³
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Diameter: 0.018 mm
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Lengths: 6 mm, 12 mm, 19 mm
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Tensile Strength: ＞450 MPa
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Modulus of Elasticity: 5000 MPa
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Melting Point: 162~167°C (324~333°F)
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Chemical Resistance: Excellent resistance to alkalis and acids
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Color: White
International Standards Compliance
PIONEER® ultra-fine polypropylene fibers comply with major global standards for fiber-reinforced concrete:
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ASTM C1116/C1116M: Standard Specification for Fiber-Reinforced Concrete
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EN 14889-2:2006: Synthetic Fibers for Concrete (Class II, Microfibers)
Suitable for structural and non-structural crack control applications in concrete and mortar.
How Ultra-Fine Polypropylene Fibers Improve Concrete Performance
Ultra-fine PP fibers disperse uniformly throughout concrete and mortar, forming a high-density micro reinforcement network that significantly enhances performance:
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Plastic Shrinkage Crack Control
The micro-scale diameter allows fibers to arrest early-age cracks more efficiently than standard PP fibers.
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Smooth Surface Finishing
Their ultra-thin profile ensures no protrusion, making them ideal for visible surfaces, overlays, and industrial floors.
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Enhanced Durability
Improves resistance to permeability, freeze–thaw cycles, and micro-cracking.
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Ideal for Dry-Mix Applications
The small fiber size ensures excellent flowability in premixed products and bagged mortars.
Incorporate Fibers into the Concrete Mix
Low Dosage and High Performance
Need quick pricing or dosage guidance?
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Key Benefits of Using Ultra-Fine Polypropylene Fibers
Leverage PIONEER® ultra-fine polypropylene fibers to enhance your projects with durable, efficient crack control.
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High Fiber Count: 135–800 million fibers/m³ for comprehensive crack control.
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Low Dosage Efficiency: Effective at 0.45 kg/m³, reducing cost while maximizing performance.
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Superior Strength: Up to 450 MPa tensile strength to improve durability.
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Invisible Finish: No protrusions, allowing smooth surfaces for finishing.
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Chemical Resistance: Withstands harsh environments without degradation.
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Extended Service Life: Increases the lifespan of concrete and mortar structures.
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Easy Integration: Mixes easily into concrete and mortar without specialized equipment.
Applications of Ultra-Fine PP Fiber Reinforcement
Designed for a broad spectrum of engineering applications:
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Precast concrete elements
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Industrial floors & slabs-on-ground
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SCC (self-compacting concrete)
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Repair mortars & patch materials
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Overlays, pavements & toppings
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Shotcrete & tunnel linings
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Plaster, render, dry-mix mortar
Hong Kong-Zhuhai-Macao Bridge
Da Nang Pier, Vietnam
Hangzhou Olympic Center
Not sure how to choose the right fiber or dosage?
Our team can recommend a solution based on your project requirements.
Email us：sales@pioneerfibre.com
How to Use Ultra-Fine Polypropylene Fibers in Concrete and Mortar
Integration
Easily added to concrete or mortar without altering mix designs.
Dosage
Recommended dosage: 0.45 kg/m³
(Adjustable according to project requirements.)
Fiber Length
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Mortar: 6–12 mm
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Concrete: 12–19 mm
Mixing
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Add fibers with dry materials
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Extend mixing 30–60 seconds for uniform dispersion
Custom Fiber Solutions for Your Projects
We offer customized solutions to meet your project’s fiber reinforcement needs.
Lengths: Various lengths are available to fit specific application requirements.
Packaging:
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Bulk packaging in ton bags for large projects.
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Small packs in plastic or water-soluble bags for easy dosing and handling.
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OEM/ODM services for distributors and private-label projects worldwide.
Need pricing or delivery details for your project?
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Need Better Crack Control Than Polypropylene Fiber?
Polypropylene fiber is widely used for basic crack control in concrete, especially for plastic shrinkage. It is a practical and cost-effective solution in most standard applications.
However, for projects requiring reduced visible cracking, higher durability, and long-term performance, its effect after hardening can be limited.
Upgrade to Rimix™ NanoRebar
Rimix™ NanoRebar is an advanced micro fiber designed for more efficient crack control.
Its ultra-fine diameter creates significantly more fibers per m³, increasing the chance of stopping micro-cracks early.
With higher strength and modulus, it works in both the plastic and hardened stages, helping improve crack resistance, toughness, and overall concrete reliability — not just early shrinkage control.
Need a better micro synthetic fiber solution for your project?
Get a cost comparison and dosage recommendation for your project.
Contact us at sales@pioneerfibre.com
Higher Efficiency, Same Cost Level
At roughly half the dosage, NanoRebar delivers more reinforcement points and stronger performance, while maintaining a comparable cost per cubic meter.
It’s a simple upgrade from polypropylene fiber — achieving better crack control without increasing total project cost.
Not sure if polypropylene fiber is the right choice for your project?
Get quick guidance on performance, cost, and application.
Reach out to us：sales@pioneerfibre.com
Looking for a Quote or More Information about Our Products?
Share your application and receive the best fiber recommendation.
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Need pricing or technical details for your project?
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Why Choose Us?
Proven Expertise & Greater Savings
22 years of focus
on fiber reinforcement solutions.
5,000 tons yearly
from advanced manufacturing.
20+ countries served
with global product distribution.
1,000 projects proven
in diverse applications worldwide.
FAQ
Ultra-fine PP fibers have a much smaller diameter (~18 μm), enabling higher dispersion and more effective crack control.
Yes. The micro-scale fibers interrupt crack formation during early-age shrinkage.
In many non-structural applications, yes—especially for crack control in slabs, overlays, and mortars.
Typical dosage is 0.45 kg/m³.
Yes. Their fine diameter ensures excellent flowability and surface finishing.
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Why Choose PIONEER® Technologies
Tested, Proven, and Engineered for Concrete Crack Control and Durability
Partner with a trusted leader in concrete crack control, fiber reinforcement, and crystalline waterproofing solutions for modern infrastructure and high-performance concrete systems.
1. Independently Tested and Certified
Validated through independent laboratory testing and compliant with ASTM standards and CE certification, PIONEER® technologies deliver reliable performance in fiber reinforced concrete and crystalline waterproofing applications.
2. Proven in Real Projects Worldwide
With applications in over 1,000 projects across 20+ countries, our systems have been used in major infrastructure such as the Hong Kong–Zhuhai–Macao Bridge, Bangladesh Subsea Tunnel, and metro systems, demonstrating consistent performance in demanding environments.
3. Integrated Reinforcement and Waterproofing Solutions
We provide advanced systems including macro synthetic fibers, micro fiber reinforcement, and crystalline waterproofing, supporting applications in industrial floors, precast concrete, ready-mix, and infrastructure projects.
4. Direct Manufacturer with Engineering Support
We offer dosage design, mix optimization, and on-site technical support, backed by over 24 years of experience, ensuring efficient implementation and consistent performance across large-scale construction projects.
26,500m² production base
Advanced fiber dispersibility
Exceptional tensile strength
