Silica flour
Finely ground silica specified for filler, construction and manufacturing applications.
Mining & MineralsIndustrial Minerals
Silica Powder & Silica Flour
Fine silica flour, quartz powder and industrial silica powder sourced by chemistry and particle size.
Silica powder is a finely ground industrial material and remains distinct from silica sand. Duara Group sources the required SiO2 purity, iron limit, whiteness, mesh or micron distribution and surface treatment for the buyer's manufacturing process.
Bulk supply available upon request. Source and supply available upon request.
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Indicative Estimate
Indicative estimate only. Prices are subject to change based on current market conditions, product grade and specifications, crop season, availability, freight, taxes, duties, destination, regulations and final supplier confirmation. This is not a binding quotation.
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Available types and commercial grades
The options below can be investigated against a complete buyer specification. Availability, producer, origin and conformance are confirmed in the written quotation.
Fine silica powder
Powder selected by micron distribution and application performance.
Quartz powder
Ground quartz material where mineral identity and purity are required.
High-purity grade
Investigated where tighter SiO2 and impurity limits are commercially available.
Industrial filler grade
Matched to paints, polymers, rubber, adhesives or other approved processes.
Typical specification points
These are enquiry fields, not published lot values. The final specification and test basis must be agreed for each supply.
| Parameter | What to define |
|---|---|
| SiO2 | Minimum purity and analytical method. |
| Fe2O3 | Maximum iron-oxide limit. |
| Moisture | Maximum content at supply. |
| Particle size | Mesh, d50/d97 or other agreed micron distribution. |
| Whiteness | Test method and minimum where appearance matters. |
| Treatment | Untreated or specified surface treatment where available. |
Packaging and supply formats
- Moisture-protective 25 kg bags
- 50 kg bags where suitable
- Jumbo bags
- Palletized container shipments
Origin and sourcing options
Mineral source and milling plant are confirmed with the offered grade. Origin is secondary to chemistry, particle distribution and process approval unless the buyer specifies it.
Documentation and certification
- Product specification and COA
- Particle-size report
- Safety data sheet
- Certificate of origin
- Inspection or sample approval documents where required
Standards and qualification
Silica powder and silica sand are separate catalogue products. Occupational exposure controls and safe handling remain subject to the supplier SDS and applicable law.
Buyer requirements for quotation
- Silica flour/powder identity
- Application
- Purity and iron limits
- Mesh/micron distribution
- Whiteness or treatment
- Quantity, pack and destination
Silica Powder & Silica Flour procurement guide
Silica powder is a finely ground industrial material and remains distinct from silica sand. Duara Group sources the required SiO2 purity, iron limit, whiteness, mesh or micron distribution and surface treatment for the buyer's manufacturing process. A useful industrial commodity enquiry defines chemistry or grade, physical form and the process in which the material will be used.
Industrial applications
The stated applications are Paint and coatings, Ceramics and glass, Construction chemicals and adhesives, Rubber and plastics and Foundry and industrial fillers. End use determines which composition, impurity, size, surface or processing parameters are commercially relevant.
Chemistry, grading and test basis
Set the acceptance schedule around Silica flour, fine powder or quartz powder, SiO2 and Fe2O3 limits, Moisture, Mesh or micron particle size and Whiteness and surface treatment where relevant. State sampling point, preparation and analytical method, permitted tolerances and whether independent inspection or an umpire process is required.
Bulk mineral handling
Confirm lump, powder, concentrate, ingot, sheet or other required form as applicable, then define bags, drums, bundles, containers or bulk loading, unit-weight limits, moisture protection, dust controls, unloading equipment and storage conditions.
Information to include in your quotation request
Send the commodity and form, process use, Silica flour, fine powder or quartz powder, SiO2 and Fe2O3 limits, Moisture, Mesh or micron particle size and Whiteness and surface treatment where relevant, quantity and shipment size, packaging or bulk loading basis, destination and Incoterm, sampling/inspection terms and required analysis documents.
Supply specification
Grade, origin, packaging and order quantity are agreed per consignment. We do not publish stock or origin claims.
Typically supplied as25 kg bags, 50 kg bags, Jumbo bags, Palletized powder shipments
Grades and varietiesConfirmed on inquiry
PackagingConfirmed on inquiry
Minimum order quantityConfirmed on inquiry
Country of originConfirmed on inquiry
Certification and documentationConfirmed on inquiry
Confirm when you enquire
Tell us the following and we will come back with availability, packaging and a quotation.
Silica flour, fine powder or quartz powder
SiO2 and Fe2O3 limits
Moisture
Mesh or micron particle size
Whiteness and surface treatment where relevant
Applications
- Paint and coatings
- Ceramics and glass
- Construction chemicals and adhesives
- Rubber and plastics
- Foundry and industrial fillers
Frequently asked questions
What should buyers specify for Silica Powder & Silica Flour?
Send the commodity and form, process use, Silica flour, fine powder or quartz powder, SiO2 and Fe2O3 limits, Moisture, Mesh or micron particle size and Whiteness and surface treatment where relevant, quantity and shipment size, packaging or bulk loading basis, destination and Incoterm, sampling/inspection terms and required analysis documents.
How should Silica Powder & Silica Flour quality be assessed?
Set the acceptance schedule around Silica flour, fine powder or quartz powder, SiO2 and Fe2O3 limits, Moisture, Mesh or micron particle size and Whiteness and surface treatment where relevant. State sampling point, preparation and analytical method, permitted tolerances and whether independent inspection or an umpire process is required.
How should Silica Powder & Silica Flour be packed and handled?
Confirm lump, powder, concentrate, ingot, sheet or other required form as applicable, then define bags, drums, bundles, containers or bulk loading, unit-weight limits, moisture protection, dust controls, unloading equipment and storage conditions.
Sourcing and export
Mineral commodities are available for commercial procurement and export inquiry, subject to provenance, licensing and destination requirements.
Availability, origin and documentation are confirmed per inquiry.
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Tell us the specification, quantity and destination and our sourcing team will come back with availability and a quotation.