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Premium Silica Fume Supplier in China

High-purity densified and undensified microsilica for concrete, refractory, oil well, and shotcrete applications. Trusted by global industries since 2001.

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23+
Years Experience
85–99%
SiO₂ Purity
50+
Countries Served
Free
Samples Available

About HSA Microsilica

Henan Superior Abrasives Import and Export Co., Ltd is one of the largest Silica Fume suppliers in China and a premium source of high-performance microsilica products for the concrete and refractory industries.

With over 23 years of production experience, we have built long-term partnerships across Australia, the USA, Canada, the Middle East, Russia, Spain, South Africa, and Southeast Asia. Our advanced technology, competitive pricing, and exceptional service ensure consistent quality and reliability.

Strict process control & advanced quality-check equipment
Customized packaging and SiO₂ content on demand
24/7 customer support and technical assistance
Silica Fume Production Facility
Exporting high-performance silica fume to over 50 countries worldwide.

Our Silica Fume Products

We offer a full range of 85% to 99% purity densified and undensified silica fume, tailored for construction, refractory, and industrial applications.

85% Densified Silica Fume

85% Densified Silica Fume

High-density microsilica ideal for concrete and shotcrete applications requiring enhanced strength and durability.

Purity: 85% SiO₂

Form: Densified Powder

85% Undensified Silica Fume

85% Undensified Silica Fume

Lightweight, high-reactivity silica fume for specialized refractory and chemical applications.

Purity: 85% SiO₂

Form: Undensified Fume

92% Densified Silica Fume

92% Densified Silica Fume

Premium-grade densified fume with superior flowability and dispersion in concrete mixes.

Purity: 92% SiO₂

Form: Densified

92% Undensified Silica Fume

92% Undensified Silica Fume

Ultra-fine fume with high surface area, ideal for refractory castables and specialty concretes.

Purity: 92% SiO₂

Form: Undensified

94% Densified Silica Fume

94% Densified Silica Fume

High-purity densified microsilica for high-performance concrete and precast applications.

Purity: 94% SiO₂

Form: Densified

94% Undensified Silica Fume

94% Undensified Silica Fume

Used in advanced refractory linings and high-temperature industrial furnaces.

Purity: 94% SiO₂

Form: Undensified

96% Densified Silica Fume

96% Densified Silica Fume

Top-tier densified fume with exceptional compressive strength enhancement.

Purity: 96% SiO₂

Form: Densified

96% Undensified Silica Fume

96% Undensified Silica Fume

Ultra-high purity fume for critical refractory and specialty concrete applications.

Purity: 96% SiO₂

Form: Undensified

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Key Applications

Silica fume enhances performance across construction, energy, and industrial sectors.

Silica Fume Concrete

Improves strength, durability, and resistance to chloride penetration in high-performance concrete.

Silica Fume Shotcrete

Enhances adhesion, reduces rebound, and increases early strength in tunneling and slope stabilization.

Silica Fume Refractory

Improves density, strength, and thermal shock resistance in high-temperature industrial linings.

Silica Fume Oil Well

Used in cementing operations to prevent gas migration and improve zonal isolation.

Why Choose HSA Microsilica?

Guaranteed Quality

Strict process control and advanced quality-check equipment ensure consistent product performance.

In-Time Delivery

Large stock availability ensures fast dispatch and reliable delivery timelines.

24/7 Support

Our team is available around the clock to assist with technical queries and order support.

Customization

Tailored packaging, SiO₂ content, and bulk solutions to meet your specific requirements.

Get in Touch

Request a free quote or sample today. Just pay for shipping.

Contact Information

sales@superior-abrasives.com
+86-18638638803 (WhatsApp)
No.68 Zhengtong Road, Zhengzhou, Henan, China
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