NEWS
Focus On High-Quality Silicate (Ceramic) Materials
Boost Whiteness and Sintering Performance with Goway Calcined Talc
Calcined Talc Ceramic Body / Glaze / Refractory Materials
🧪 Core Functions of Calcined Talc in Ceramics
Fired Whiteness Enhancement
Rich in magnesium silicates, calcined talc delivers stable whiteness after firing, significantly improving body and glaze whiteness while reducing dependence on whitening agents.
Firing Shrinkage Control
Proper addition optimizes the firing shrinkage curve, reducing deformation and cracking risks, and improving dimensional consistency.
Sintering Performance Improvement
MgO forms low-eutectic phases with SiO₂ and Al₂O₃ at high temperatures, promoting densification and enhancing mechanical strength.
Glaze Surface Quality Optimization
In glaze formulations, it improves smoothness and gloss, reduces pinholes and orange-peel defects, especially suitable for matte and semi-matte glazes.
Thermal Stability Enhancement
Excellent high-temperature resistance and thermal shock resistance, suitable for refractories and high-temperature ceramic products.
Firing Range Broadening
Effectively expands the safe firing temperature window, reducing kiln sensitivity and improving production yield.
🏭 Typical Application Scenarios
🏺 Ceramic Body
Added to body formulations to improve plasticity, regulate drying and firing shrinkage, enhance green strength and dimensional stability. Suitable for wall/floor tiles, tableware, sanitaryware and more.
🎨 Ceramic Glaze
Incorporated into glaze formulations to optimize gloss and smoothness, reduce pinholes and bubbles, especially effective in matte, dull and opaque glaze systems.
🔥 Refractory Materials
With excellent high-temperature stability and thermal shock resistance, widely used in refractory bricks, kiln furniture, insulating materials and other high-temperature applications.
🧪 Advanced Ceramics
Suitable for electronic ceramics, structural ceramics and other advanced ceramic fields with special thermal and dielectric property requirements.
📊 Product Series & Technical Specifications
Typical chemical composition and fired whiteness (tested at 1200°C on glaze surface) of Goway's four calcined talc grades. Select according to your formulation needs.
| Code | Whiteness (1200°C) | SiO₂ (%) | MgO (%) | CaO (%) | Al₂O₃ (%) | Fe₂O₃ (%) | Na₂O (%) | K₂O (%) | L.O.I (%) |
|---|---|---|---|---|---|---|---|---|---|
| 93# | 95.3 | 65.7 | 31.09 | 2.57 | 0.12 | 0.04 | 0.01 | 0.01 | 0.31 |
| 90# | 92.8 | 65.84 | 28.8 | 3.3 | 0.98 | 0.03 | 0.01 | 0.02 | 0.57 |
| 91# | 90.3 | 64.71 | 32.1 | 0.73 | 1.59 | 0.29 | 0.12 | 0.22 | 0.11 |
| 88# | 88.8 | 66.45 | 29.2 | 2.55 | 0.92 | 0.07 | 0.01 | 0.01 | 0.57 |
※ Whiteness measured on fired glaze surface at 1200°C; chemical compositions are typical values. Actual batch COA reports available upon request. Grades sorted by whiteness (high to low).
🔗 Synergy with Other Ceramic Raw Materials
Calcined talc is not used in isolation. Proper combination with other raw materials creates synergistic effects to further optimize product performance.
Kaolin provides plasticity, talc regulates firing shrinkage and thermal expansion. This combination improves forming performance and fired dimensional stability, ideal for premium tableware and sanitaryware.
Feldspar provides fluxing components, talc introduces MgO to adjust high-temperature viscosity. Together they broaden the firing range and improve glaze gloss and smoothness.
Zirconium silicate enhances whiteness and opacification, talc improves glaze surface quality and pinhole resistance. Combined use delivers high whiteness and superior glaze finish.
Goway FG-2017 deflocculant effectively disperses talc particles, reduces slurry viscosity, improves ball milling efficiency and slurry flowability, especially for high-talc formulations.
📝 Formulation Recommendations
Typical dosage ranges and functional focus of calcined talc in different ceramic product categories for formulation engineers' reference.
| Ceramic Category | Recommended Grade | Recommended Dosage | Key Function |
|---|---|---|---|
| Premium Whiteware / Bone China | 93# / 90# | 3% – 6% | Whiteness enhancement, translucency improvement, firing shrinkage control |
| Full-Polished / Glazed Tiles | 90# / 91# | 2% – 5% | Glaze smoothness optimization, pinhole defect reduction |
| Rustic / Matte Tiles | 91# / 88# | 4% – 8% | Glaze texture adjustment, matte finish optimization |
| Sanitaryware | 93# / 90# | 3% – 7% | Whiteness and surface smoothness improvement, thermal stability enhancement |
| Daily-Use Ceramics | 91# / 88# | 3% – 8% | Sintering performance improvement, firing range broadening |
| Refractory Materials | 88# / 91# | 5% – 10% | Thermal shock resistance enhancement, high-temperature strength improvement |
※ Data above are industry reference ranges. Actual dosage should be determined through trials based on specific formulation, kiln firing curve and product requirements.
⭐ Core Advantages of Goway Calcined Talc
🔬 Quality Control & Testing
Goway performs strict outgoing quality inspection on each batch of calcined talc to ensure stable and reliable product performance.
❓ Frequently Asked Questions
Request Calcined Talc Samples & Formulation Support
Goway technical team can recommend the most suitable talc grade and dosage based on your body or glaze formulation, and provide free samples and technical support.
📩 Contact Goway Sales / Technical TeamKeyword：
More News
GOWAY INTERNATIONAL MATERIAL CO., LTD
Founded in 2009, we specialize in producing and supplying ,ceramic additives and related products, committing to supplying stable, environmentally friendly,professional and ceramic materials.
Contact UsContact Us
Company Phone/Wechat：86-0757-82131106 / +8613728575572
Company Fax：86-0757-82131106
Whatapp/skype: +8613600032377
E-mail：service@goway-china.com
Office Address: Room C11-6, Foshan National Torch Innovation and Pioneer Park, Jihua 2nd Road, Chancheng District, Foshan City, Guangdong Province, China.
Factory Address: Nanbian Industrial Zone, Sanshui District, Foshan City Guangdong Province，China.