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Since 2002

HPM® FR
HPM® FR fire-resistant polypropylene fiber for concrete spalling protection

HPM® FR

Fire-Resistant Fibers

Enhances concrete fire and blast resistance

Since 2002, we have specialized in concrete crack resistance, waterproofing, and anti-corrosion technologies.

Fire-Resistant Fiber for Concrete and Tunnel Applications | PIONEER®

High-Performance Anti-Spalling Polypropylene Fiber for Concrete

Deploy advanced structural fire protection for tunnels, high-rise buildings, underground facilities, and critical infrastructure. PIONEER® HPM® FR fibers minimize explosive spalling, improve evacuation safety, and enhance concrete durability under extreme heat events.

What is PIONEER® HPM® FR Fire-Resistant Fiber?

PIONEER® HPM® FR is a high-performance fire-resistant polypropylene fiber engineered to prevent explosive spalling when concrete is exposed to fire. As temperatures rise, the hollow fibers melt and create micro-channels that relieve trapped vapor pressure. This reduces the risk of sudden concrete failure and increases structural fire endurance.

Ideal for:

  • Tunnels & underground structures

  • High-rise evacuation routes

  • Subway systems

  • Fire-rated structural concrete

  • HPC & UHPC exposed to fire loads

Specialty Synthetic Fibers

bulk pricing available

Specialty synthetic fire-resistant fibers for bulk supply in structural concrete reinforcement and fire protection applications

Technical Specifications of HPM® FR Anti-Spalling Fiber

Engineered for reliable fire performance in concrete, HPC, and UHPC.

  • Material: Virgin polypropylene (PP)

  • Type: Hollow monofilament synthetic fiber

  • Diameter: 0.0016-0.003 in.（40-70µm）

  • Nominal Length: 0.5 in.（12 mm）

  • Tensile Strength: 15-44 ksi (100-300 MPa)

  • Melting Point: 302-320 F (150-160 ℃)

  • Alkali, Acid, and Salt Resistance：High

  • Limit Crack Grade：Grade One (Crack reduction coefficient exceeds 70%)

Fire-resistant fiber solves one problem.
What about cracks before and after hardening?

International Standards Compliance

PIONEER® HPM® FR fibers meet global specifications for synthetic fibers used in concrete:

  • ASTM C1116 – Standard Specification for Fiber-Reinforced Concrete

  • EN 14889-2 – Synthetic Fibres for Concrete

Key Benefits of Fire-Resistant Polypropylene Fiber

Strengthen the fire performance and durability of concrete:

  • Prevents explosive spalling by forming vapor-release channels

  • Delays structural failure, supporting safer evacuation

  • Improves fire endurance in tunnels & critical infrastructure

  • Reduces early-age shrinkage cracking

  • Mix-friendly, no redesign required

  • Cost-effective fire protection for HPC/UHPC

Highway tunnel entrance constructed with fire-resistant concrete reinforced by anti-spalling fibers to ensure safety during fire events

Fire-Resistant Fiber for Concrete and Tunnel

Interior of a fire-resistant tunnel lined with concrete containing anti-spalling fibers to prevent explosive spalling during high-temperature fires

Fire-resistant, anti-spalling fiber technology

There is a more advanced approach to concrete reinforcement.
Designed for both early-stage and long-term crack control.

Where to Use Fire-Resistant Concrete Fibers

HPM® FR is ideal for concrete structures requiring high fire resilience:

  • Subway tunnels / metro systems

  • Underground parking structures

  • High-rise buildings (columns, slabs, escape routes)

  • Airport & hospital infrastructure

  • Precast tunnel segments

  • HPC/UHPC fire-rated panels

Hong Kong-Zhuhai-Macao Bridge constructed with polypropylene macro fiber-reinforced shotcrete for enhanced crack resistance and durability in marine environments

Hong Kong-Zhuhai-Macao Bridge

Da Nang Pier in Vietnam built with steel fiber-reinforced concrete for superior tensile strength, impact resistance, and long-term durability in harsh marine conditions

Da Nang Pier, Vietnam

Hangzhou Olympic Center constructed with polypropylene microfiber-reinforced concrete to prevent plastic shrinkage cracking and ensure smooth architectural surfaces

Hangzhou Olympic Center

Lower dosage. Higher fiber count. More uniform crack control.
What if one fiber could do more—without increasing cost?

How to Use Fire-Resistant Polypropylene Fiber in Concrete

Recommended usage guidelines:

  1. Dosage: Dosage: 0.9–1.8 kg/m³ (typical: 1.2 kg/m³）.

  2. Available Lengths: 6 / 12 / 18  mm.​

  3. Mixing: Add fibers during dry mixing with aggregates.

  4. Compatibility: Works with standard, HPC, and UHPC mixes.

Custom Fiber Solutions for Fire-Protected Projects

Available Lengths: 6 / 12 / 18 mm
Packaging Options:

  • Bulk ton bags

  • Water-soluble small packs

  • PE bags for jobsite dosing

Need cost comparison or dosage guidance?

Why Choose PIONEER® as Your Concrete Fiber Supplier

Partner with a direct manufacturer with over 22 years of expertise in synthetic fiber reinforcement for concrete and mortar.

22 Years of Expertise in Fiber Reinforcement

PIONEER® provides consistent, high-performance fibers that ensure long-term success in concrete slabs, precast elements, industrial floors, and critical infrastructure projects, making us a trusted supplier in the global market.

1,000+ Projects in 20+ Countries

Our fibers are applied in major projects, including the Hong Kong-Zhuhai-Macao Bridge, Bangladesh Subsea Tunnel, Walmart Superstores, and metro systems, demonstrating our proven capability in fiber-reinforced concrete and mortar applications.

Direct Manufacturer, One-Stop Service

We provide complete technical support, including dosage optimization, mix design consultation, and on-site application guidance to ensure your projects succeed with fiber-reinforced concrete and mortar.

PIONEER® factory office building in Nanjing showcasing the company's headquarters and administrative facilities.

PIONEER® Headquarters

Aerial view of PIONEER® production facility in Nanjing, showcasing the company's modern factory and large-scale concrete fiber manufacturing capabilities.

26,500m² production base

Synthetic fibers manufacturing production line for fiber reinforced concrete, producing concrete fibers and fiber mesh reinforcement to reduce cracks and improve durability.

Advanced fiber dispersibility

Concrete fibers production line manufacturing reinforcement fiber for concrete and improving fiber reinforced concrete performance.

Exceptional tensile strength

Still Relying on Fire-Resistant Fiber for Crack Control?

Upgrade to Next-Generation Distributed Reinforcement with NanoRebar

NanoRebar Fiber Reinforcement Inside Concrete.avif

Need technical support or product specifications?

PIONEER® engineers inspecting FRC construction progress at the construction site

Have Any Questions?
Get in Touch with Us Now!

Looking for a Quote or More Information about Our Products?
Tell us your application and we’ll recommend the right macro or micro fiber solution for your project.
Select your application to get a faster recommendation

At PIONEER, we’re committed to delivering the best and most relevant information to support your needs. Reach out to us for more details and discover the benefits we offer:

  • Factory-Direct Pricing

  • Expert Guidance on Fiber Applications

  • Customized Solutions for Your Project

  • Fiber Samples Available for Testing

Privacy Assurance: We respect your privacy and will never share your information. 

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

  • They melt under fire conditions, forming micro-channels that reduce vapor pressure buildup.

  • No. They enhance fire performance but do not replace structural reinforcement.

  • Yes. They are compatible with UHPC and high-density mixes.

  • Yes. They are widely used in tunnel linings and underground transit systems.

HPM® PP

Contact Us

For product inquiries, OEM/ODM partnerships, or becoming a distributor: Sales@pioneerfibre.com

For technical support and application guidance: Support@pioneerfibre.com

Regional WhatsApp Support

​We typically respond within 24 hours, ensuring your project continues without delays.

  • Americas: +1 (702) 307-8327

  • Europe: +86 151 6240 5106

  • Middle East & Africa：+1 (949) 317-7180

  • Asia-Pacific：+86 190 1543 5408

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