Microsilica-SI.com | High-Purity Silica Fume Powder Supplier

About Sichuan Ewende New Material Co., Ltd.

Sichuan Ewende New Material Co., Ltd. is a comprehensive enterprise integrating scientific research, production, sales, and operation, enjoying a strong reputation in the global microsilica industry. Our business spans the entire value chain—from ultra-high-strength concrete and refractory materials to advanced insulation systems.

We operate our own independent laboratory to ensure product consistency and performance, meeting the actual application requirements of customers worldwide. Our commitment to quality and innovation has positioned us as a trusted supplier across Asia, Europe, and North America.

95%

SiO₂ Purity

ISO9001

Quality Certified

Global

Shipping

20+

Years Experience

Our Product Range

We offer a full spectrum of high-purity silica fume products, both densified and undensified, tailored for construction, metallurgy, and chemical industries.

Silica Fume 95% Densified Powder

SiO₂: >95%
Color: Dark Grey, Neutral Grey
pH: 5–8.5
Bulk Density: 380–400 kg/m³
Packaging: 20kg soluble paper bags, 500kg/600kg woven bags

Silica Fume 94% Densified Powder

SiO₂: >94%
Color: Dark Grey, Neutral Grey
pH: 5–8.5
Bulk Density: 380–400 kg/m³
Packaging: 20kg, 500kg, 600kg options

Silica Fume 95% Undensified Powder

SiO₂: >95%
Color: Dark Grey
pH: 5–8.5
Bulk Density: 240–270 to >700 kg/m³
Packaging: 20kg, 500kg, 600kg

Silica Fume 92% Densified Powder

SiO₂: >92%
Color: Dark Grey
pH: 5–8.5
Bulk Density: 380–400 kg/m³
Packaging: 20kg, 500kg, 600kg

Product Image

Silica Fume 85% Densified Powder

SiO₂: >85%
Color: Grey
pH: 5–8.5
Bulk Density: 380–400 kg/m³
Packaging: 20kg, 500kg, 600kg

Product Image

94% Undensified Silica Fume

SiO₂: >94%
Color: Dark Grey
pH: 5–8.5
Bulk Density: Varies by grade
Packaging: 20kg, 500kg, 600kg

Product Image

92% Undensified Silica Fume

SiO₂: >92%
Color: Grey
pH: 5–8.5
Bulk Density: Varies
Packaging: 20kg, 500kg, 600kg

Product Image

Zirconium Silica Fume Powder

Composition: ZrO₂ + SiO₂
Application: High-temp refractories
Form: Fine powder
Packaging: Custom options

Why Choose Our Microsilica?

ISO Certified Quality

Certified under ISO9001 and ISO14001 standards, ensuring consistent quality and environmental responsibility.

High Reactivity & Purity

With SiO₂ content exceeding 95%, our microsilica enhances strength, durability, and impermeability in concrete.

Competitive Pricing & Bulk Supply

Direct factory pricing with adequate stock and flexible packaging for global wholesale distribution.

Real-World Applications

High-Strength Lightweight Concrete

Used in highway bridges to meet strict density and strength requirements while reducing structural load.

Store Baelt Bridge, Denmark

Microsilica ensured low permeability and long-term durability under harsh marine conditions.

Building Materials Industry

Widely used in high-tech construction for enhanced fire resistance and structural integrity.

Frequently Asked Questions

What is the difference between densified and undensified silica fume?

Densified silica fume is compressed to reduce dust and improve handling, while undensified is in its raw, fine powder form. Both offer similar chemical performance.

Can silica fume be used in high-temperature refractories?

Yes, especially zirconium-modified or high-purity grades, which enhance thermal stability and resistance to spalling.

How should silica fume be stored?

Store in a dry, cool place away from moisture. Keep packaging sealed to prevent clumping.

Is your product environmentally safe?

Yes, we comply with ISO14001 standards and ensure responsible production and packaging practices.

Get in Touch

For inquiries, quotes, or technical support, visit our official website to connect with our team.

Visit Official Website

Email: ewende@microsilica-si.com

Email: info@microsilica-si.com

Phone: +86 15198269178

Mobile: +86 13109355617 | +86 15693440283

WhatsApp: +8613109355617 | +8615693440283

WeChat: +86 131 0935 5617 | +86 156 9344 0283

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