HPM® GFM-50
Glass Fiber Micro Powder
Enhance Concrete Durability and Strength
Since 2002, we have specialized in concrete crack resistance, waterproofing, and anti-corrosion technologies.
Ultrafine Reinforcing Glass Fiber Micro Powder | PIONEER®
nhance Concrete Durability and Strength with Glass Fiber Powder
What Is PIONEER® Glass Fiber Micro Powder for Cementitious Reinforcement?
PIONEER® HPM® GFM-50 is an ultrafine reinforcing glass fiber micro powder developed for concrete, mortar, UHPC, and cement-based composites. With particle sizes below 17 μm and high surface area, this alkali-free E-glass fiber powder refines microstructure, enhances toughness, reduces microcracking, and improves long-term durability in advanced concrete systems while maintaining easy dispersion in dry and wet processes.
High-quality Fiberglass
Quality Guaranteed
Technical Specifications of Glass Fiber Micro Powder for Concrete and Mortar
Explore the consistent, high-purity properties of PIONEER® glass fiber powder for enhancing cementitious materials:
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Material: Alkali-free E-glass fiber
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Type: Ultrafine micro powder
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Average Particle Size: 15 μm
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Specific Gravity: 2.6 g/cm³
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Purity: >99% glass fiber
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Bulk Density: 0.3–0.5 g/cm³
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pH (in water): 7–9
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Moisture Content: <0.5%
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Color: White
Applicable standards and test methods
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ASTM C1240: Mineral admixtures for concrete
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EN 13263: Silica fume and mineral admixtures
How Glass Fiber Micro Powder Strengthens Concrete?
Learn how PIONEER® glass fiber micro powder enhances concrete microstructure, increases strength, and improves crack resistance.
The ultrafine particles fill micro-voids, reduce porosity, and refine the interfacial transition zone between aggregates and cement paste. This leads to improved compressive and flexural strength, enhanced bonding, reduced permeability, and increased resistance to cracking, making it ideal for high-performance concrete, UHPC, mortars, and repair materials.
Fiberglass resin composite materials
Fiberglass grating grid plate
Key Benefits of Using Glass Fiber Micro Powder in Concrete
Maximize performance in your projects with PIONEER® glass fiber micro powder:
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Refines microstructure, reducing porosity
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Enhances crack resistance and toughness
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Improves compressive and flexural strength
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Promotes better bonding between cement paste and aggregates
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Reduces permeability, increasing durability
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Easy to disperse in dry and wet mixing
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Compatible with various concrete and mortar formulations
Applications of Glass Fiber Micro Powder for Cementitious Reinforcement
PIONEER® glass fiber powder is used globally in:
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High-performance concrete and UHPC
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Mortars and overlays for repair and protection
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Cement-based composites and fiber-reinforced products
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Grouts and specialty cementitious materials
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Decorative and architectural concrete elements
Precast elements
3D-printed construction materials
Aerospace composite materials
How to Use Glass Fiber Micro Powder in Concrete?
Ensure optimal use of PIONEER® glass fiber micro powder in your production:
1. Dosage: Typically 0.5–2% by weight of cementitious materials
2. Mixing: Add gradually during dry or wet mixing for even distribution
3. Handling: Use PPE and dust control during handling
4. Storage: Store in sealed, moisture-protected packaging
Custom Glass Fiber Micro Powder Solutions for Your Projects
PIONEER® offers flexibility to meet your project requirements:
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Customizable particle size distributions for specific needs
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Packaging options: bulk bags, moisture-protected sacks, small packs
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Technical support for mix design optimization and performance guidance
Contact Our Sales & Technical Team
For product inquiries, quotations, technical support, or distribution opportunities,
contact our team directly.
Sales & Business: Sales@pioneerfibre.com
Technical Support: Support@pioneerfibre.com
Sales Manager: +1 (406) 717-9829
Technical Director: +1 (929) 569-9992
Get a Quick Quote or Product Recommendation
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Why Choose Us?
Proven Expertise & Greater Savings
24 years of focus
on concrete protection solutions.
20+ patents & awards
In concrete durability technology
20+ countries served
with global product distribution.
1,000 projects proven
in diverse applications worldwide.
Why Choose PIONEER Glass Fibers
1. Product-Specific Documentation
Request current technical data sheets, available test reports and applicable conformity documents for the selected glass fiber.
2. Application-Based Selection
Select glass fibers according to the matrix material, processing method, exposure conditions and required performance.
3. Glass Fiber Options
Compare available glass types, fiber lengths, strand formats and sizing systems for the intended application.
4. Technical Support
Get support with product selection, addition rates and processing guidance. Confirm compatibility and performance through application-specific trials.
26,500m² production base
Advanced fiber dispersibility
Exceptional tensile strength
FAQ
HPM® GFM-50 is an E-glass micro-powder product developed for incorporation into compatible cementitious and specialty formulations. It is a powder product rather than a conventional chopped glass strand.
No. HPM® GFM-50 is described as an E-glass micro-powder product. Silica fume is a different material category and should not be treated as interchangeable with glass fiber powder.
Not automatically. Ground glass, recycled glass powder and glass-fiber-derived micro powder can differ in raw material, particle morphology, composition and intended use. Review the current GFM-50 Technical Data Sheet for the official product definition.
Use the current particle-size distribution report or Technical Data Sheet for the verified particle-size specification. Particle-size terminology should distinguish values such as median, mean and distribution percentiles where applicable.
Addition rate depends on the cementitious formulation, performance objective and product specification. Use the current HPM® GFM-50 Technical Data Sheet and formulation testing to establish the final rate.