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Silica Silicon Dioxide

SiO2

The earth's most abundant mineral — exceptional purity, hardness, and versatility for glass, ceramics, rubber, and countless industrial applications.

98%+ SiO2
Mohs 7
Natural
ISO Certified
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20+Grades
15+Industries
50+Countries
35+Years
Silica - 20 Microns
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Product Overview

About Silica

Understanding the fundamentals of silica

Product Overview

The Foundation of Industry

Silica (SiO₂) is silicon dioxide — the most abundant mineral in the Earth's crust, essential for glass, ceramics, foundry, and countless industrial applications.

Available as crystalline quartz, amorphous, and precipitated forms, silica offers exceptional hardness, chemical resistance, and thermal stability for diverse applications.

Quartz Sand Quartzite Precipitated
SiO2

Chemical Formula

Silica

Chemical Properties
  • SiO2 Content98-99.8%
  • Fe2O3 Content<0.03%
  • Al2O3 Content<0.5%
  • pH Value6.5 – 7.5
Physical Properties
  • Mohs Hardness7
  • Specific Gravity2.65
  • Melting Point1713°C
  • Whiteness85 – 95%
98%+
SiO2 Content
Mohs 7
Hardness
Various
Mesh Sizes
ISO
Certified

Naturally Abundant

Earth's most abundant mineral in sustainable applications.

NaturalAbundantSustainable
Silica quartz deposits
Natural Source

From Pure Quartz Deposits
to Industrial Excellence

Processed from the purest quartz deposits to deliver consistent quality for demanding applications.

AbundantGlobal Reserve
35+Years Processing
10+Processing Sites
High purity
Hard and durable
Chemical resistant
Thermally stable
Consistent quality
Advantages

Key Benefits

Why silica is the preferred choice for industry leaders worldwide

01

High Purity

Premium grades with 98-99.8% SiO₂ content for demanding applications.

02

Exceptional Hardness

Mohs hardness of 7 provides excellent abrasion resistance and durability.

03

Thermal Stability

High melting point (1713°C) for refractory and high-temperature applications.

SiO₂
98%+Purity
6Key Benefits
15+Industries
04

Chemical Resistance

Inert to most chemicals except hydrofluoric acid and alkalis.

05

Versatile Forms

Available as sand, flour, fused, precipitated, and fumed grades.

06

Cost Effectiveness

Abundant and economical for large-volume industrial applications.

Industrial manufacturing excellence
World Class Quality

Industry-Leading Performance
at Every Scale

Trusted by leading manufacturers across 50+ countries for consistent, high-purity silica that meets international standards.

ISO 9001 EcoVadis Gold REACH Compliant Lab Certified
ISO Certified
Global Supply
Lab Tested
Industry Leading
Product Range

Available Grades

Comprehensive range of silica grades for diverse industrial applications

Precision quality testing of silica grades

Precision Engineered Grades

Every grade is meticulously tested in our state-of-the-art laboratories to meet the most demanding industrial specifications worldwide.

SiO2 Content98%+
HardnessMohs 7
Mesh SizesVarious
CertifiedISO
Most Popular
Glass

Glass Grade Silica

High Purity

Low iron silica sand for clear glass, container glass, and specialty glass production.

  • <0.03% Fe2O3
  • 99%+ SiO2
  • Consistent grain
Learn More
Foundry

Foundry Grade Silica

Molding Sand

Carefully sized silica sand for metal casting molds and cores.

  • AFS grading
  • Sub-angular
  • Low LOI
Learn More
Rubber

Rubber & Paint Grade

Reinforcing

Micronized silica for rubber reinforcement and paint matting applications.

  • Fine mesh
  • High purity
  • Consistent sizing
Learn More
Precipitated

Precipitated Silica

Synthetic

Synthetically produced silica for rubber, oral care, and food applications.

  • Controlled structure
  • High surface area
  • Food grade
Learn More
Product Statistics
4Grade Categories
20+Product Variants
VariousMesh Sizes
Request Custom Grade
ISO 9001 Certified Global Delivery Technical Support Custom Solutions
Applications

Industries & Applications

Versatile applications across diverse industry verticals worldwide

Glass Industry

Glass Industry

Primary raw material for container glass, flat glass, fiberglass, and specialty glass.

ContainerFlat GlassFiberglass
70%+of Glass
Foundry

Foundry

Molding and core sand for iron, steel, aluminum, and non-ferrous casting.

IronSteelAluminum
AFSGraded
Rubber Industry

Rubber Industry

Reinforcing filler for tires, footwear, and technical rubber goods.

TiresFootwearTechnical
30%+Loading
Paints & Coatings

Paints & Coatings

Matting agent and filler for industrial and decorative coatings.

MattingFillerIndustrial
VariedFinish
Ceramics

Ceramics

Essential component in ceramic bodies, glazes, and refractory materials.

BodiesGlazesRefractory
HighTemperature
Construction

Construction

Concrete, mortar, artificial stone, and building materials.

ConcreteMortarBuilding
StrengthBoost
15+Industries
20+Applications
50+Countries
900+Customers

Need a Custom Solution?

Our experts help you find the perfect grade

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Our Promise

Why Choose 20 Microns?

World-class quality minerals backed by decades of expertise & innovation

20 Microns state-of-the-art manufacturing facility

Years of
Excellence

ISO 9001
High Purity
Premium
Certified

Our silica is sourced from premium quartz deposits and processed using advanced technology to deliver consistent purity, sizing, and performance.

Premium Quality

Purest quartz deposits

Advanced Processing

State-of-the-art facilities

Consistent Quality

Batch-to-batch reliability

Technical Support

Expert application assistance

Start Your Journey With Us
Key Metrics
10+Processing Plants
50+Countries Served
900+Happy Customers
35+Years Experience
EcoVadis Gold Sustainability Rating
98%+SiO2 Purity
R&DInnovation
24/7Logistics
ExpertSupport
Knowledge Base

Frequently Asked Questions

Get answers to common questions about Silica

Knowledge Center

Find detailed answers about specifications, applications, and technical details.

4Questions
24/7Support
TechnicalApplicationsGradesQuality

Still Have Questions?

Our team is here to help

Contact Us
01

What is silica used for?

Silica is the primary raw material for glass and is used in foundry, ceramics, rubber, paints, construction, water filtration, and countless other applications.

Glass Foundry Rubber
02

What is the difference between quartz and silica?

Silica (SiO₂) is the chemical compound. Quartz is the crystalline mineral form of silica. We offer both natural quartz and processed silica products.

Quartz Crystalline Amorphous
03

Is silica sand different from regular sand?

Yes, silica sand is processed sand with high SiO₂ content (95%+) and controlled sizing, unlike beach or river sand which contains various impurities.

High Purity Sized Processed
04

What mesh sizes are available?

We offer silica in various mesh sizes from 16 mesh to 500 mesh, including custom sizing for specific applications.

Coarse Fine Micronized

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Our technical experts are available to provide detailed answers

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Industry Applications

Product Applications

Silica serves as a critical input across diverse industrial sectors worldwide

01

Glass Manufacturing

Container, flat, and specialty glass.

02

Foundry

Molding and core sand.

03

Rubber

Reinforcing filler.

04

Paints

Matting and filler.

05

Ceramics

Bodies and glazes.

06

Construction

Concrete and mortar.

07

Water Filtration

Filter media.

08

Plastics

Filler and reinforcement.

09

Electronics

Semiconductor grade.

10

Oil & Gas

Frac sand (proppant).

10+Application Sectors
20+Product Grades
50+Countries Served
900+Industry Clients
Silica industrial applications worldwide
Global Industrial Reach

Powering Industries Across
50+ Countries

From cosmetics to oil & gas — silica is the essential mineral behind thousands of products you use every day.

Need a Specific Grade for Your Application?

Our experts will guide you to the perfect silica solution

Request Expert Consultation
Product Video

See It In Action

Watch how 20 Microns' Silica powers real-world industrial applications

Silica in Action – 20 Microns
YouTube
Official Product Film

Silica - Foundation of Industry

20 Microns Limited · Official Channel

About This Video

Discover how 20 Microns' Silica grades deliver superior performance across industrial applications.

  • Product manufacturing overview
  • Quality control processes
  • Application demonstrations
  • Global supply capabilities
Watch on YouTube

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Silica

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