Description
Talc Powder 325 Mesh Industrial
We are a bulk talc powder supplier of 325 mesh industrial grade. Talc Powder 325 Mesh Industrial (CAS 14807-96-6, molecular formula Mg3Si4O10(OH)2) is a raw material for tile, sanitaryware, tableware and refractory production, where particle size and impurity profile drive fired colour and body strength. China Chemicals supplies it at MgO 30% min in pack sizes from 1 kg through to 1000 kg Bulk Bag, so laboratory trial quantities and full production volumes can be sourced from the same specification.
It is also traded as Talcum, Steatite, Hydrated Magnesium Silicate. Every consignment ships with a batch-specific Certificate of Analysis and the current Safety Data Sheet, and material is stored and picked under stock rotation so you receive product well inside its shelf life.
Typical applications
- Steatite and cordierite ceramic body formulation
- Extender and anti-sag additive in paint
- Reinforcing filler in polypropylene compounds
- Anticaking and dusting agent in rubber processing
- Paper coating and filler
Technical specification
| Chemical name | Talc Powder 325 Mesh Industrial |
|---|---|
| Synonyms | Talcum, Steatite, Hydrated Magnesium Silicate |
| CAS number | 14807-96-6 |
| Molecular formula | Mg3Si4O10(OH)2 |
| Appearance | White soft fine powder |
| MgO | 30.0% min |
| SiO2 | 58 – 62% |
| Fe2O3 | 0.4% max |
| Loss on ignition | 6.0% max |
| Particle size | 99% through 325 mesh |
| Whiteness | 90% min |
Values above are typical and are confirmed on the Certificate of Analysis issued against each batch. Tighter specifications can be quoted where a process requires them.
Packaging and supply
Available in 1 kg, 5 kg, 25 kg Bag, 1000 kg Bulk Bag. Bulk, road tanker and export drum quantities are quoted on request, including FOB and CIF terms for international shipment. Pricing shown is per pack in USD, exclusive of freight and any applicable duties.
Handling and safety
Transport classification: Not regulated · May cause respiratory irritation as dust. Store in the original closed container in a cool, well-ventilated area away from incompatible materials, and handle using appropriate personal protective equipment. Read the Safety Data Sheet in full before use — it is issued with every order and is available on request before purchase.
Supply to industry only. Products are sold for legitimate industrial, laboratory and manufacturing use. We may request end-use details and business registration before releasing an order.
What Is Industrial Talc Powder?
Talc is a sheet (phyllosilicate) mineral, a hydrated magnesium silicate. Its platy crystal structure is what gives it the characteristic soft, slippery feel and why it performs so well as a lubricant and processing aid in formulated products. At 325 mesh, this is the standard fine industrial grade used across ceramics, plastics, coatings and rubber. One point worth understanding: a “325 mesh” specification describes the coarse-end ceiling, not the typical particle size, so two talcs both certified 325 mesh can have different median particle sizes and perform differently in the same formulation.
Applications
In ceramics, talc powder is used as an auxiliary flux to lower firing temperature in electrical porcelain, sanitaryware and tile bodies without narrowing the usable firing range, working alongside materials such as Wollastonite and Potash Feldspar. In plastics, its largest single industrial use is as a functional filler in thermoplastics, most prominently polypropylene, improving stiffness, dimensional stability and heat resistance. It is also a common ingredient in industrial maintenance and anti-corrosive primers, and a processing aid in rubber.
Handling & Safety
This is an industrial-grade talc powder intended for ceramics, plastics, coatings and rubber. It is not cosmetic or personal-care talc, which is subject to separate, stricter asbestos-free sourcing certification and purity standards. Industrial-grade talc powder is chemically inert. Standard industrial dust-handling precautions (ventilation, a dust mask for bulk handling) apply, as with any fine mineral powder.
Frequently Asked Questions
Is this talc powder the same as cosmetic talc?
No. This is industrial-grade talc for ceramics, plastics and coatings, distinct from cosmetic-grade talc, which carries separate, stricter sourcing and purity certification.
Why is talc powder used in ceramics?
As an auxiliary flux, it lowers the firing temperature needed without narrowing the firing range, and can improve resistance to crazing in some glaze systems.
What does 325 mesh actually tell me?
It is the coarse-end ceiling (particles passing a 325-mesh sieve), not the typical particle size. Ask for the full particle size distribution if your application is sensitive to this.
What is the biggest industrial use of talc powder?
As a functional filler in thermoplastics, especially polypropylene.
What packaging and order quantities are available?
Standard 25kg or 50kg bags depending on fineness. Contact us with your required volume for current pricing and lead time.
Your Trusted Talc Powder Supplier
As an established talc powder supplier, we serve manufacturers and processors with consistent quality and reliable delivery. The right talc powder supplier gives you steady specification and documentation batch after batch, and as your talc powder supplier we back every order with a Certificate of Analysis.
For further independent reference, see the Wikipedia entry on talc, and browse our full Ceramic Chemicals range.
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