indianceramica@gmail.com - GST NO. : 23ASHPA0569P1ZM
- Send Email
Posted by Admin on April, 14, 2026
FeldsparIndia.com · Aalok Overseas · Rajasthan · Ceramics Division
200 Mesh vs 325 Mesh Feldspar
Tile Body vs Ceramic Glaze — The Definitive Buyer's Guide
Potash Feldspar · Soda Feldspar · High Purity · India Export · 40+ Countries
Why Mesh Grade Matters
200 Mesh or 325 Mesh? Choosing the Right Feldspar Grade Determines Your Fired Quality
Mesh size is not just a number — it determines how feldspar reacts during firing. 200 Mesh feldspar (max 74 µm) melts progressively and suits porous tile bodies where moderate glass formation suffices. 325 Mesh feldspar (max 44 µm) has far greater surface area, melts earlier, flows more uniformly, and is essential wherever defect-free glaze surfaces are required.
India exports 30–35% of global feldspar trade. Rajasthan's Aravalli belt produces 2.5M+ MT/year. Indian high-purity feldspar — K₂O 12–14% or Na₂O 9–11%, Fe₂O₃ <0.10% — sets the global benchmark for both 200 and 325 mesh grades.
Side-by-Side Comparison
200 Mesh vs 325 Mesh — Full Technical Breakdown
| Parameter | 200 Mesh | 325 Mesh |
|---|---|---|
| Max Particle Size | 74 µm | 44 µm |
| Primary Application | Tile Body / Floor Tile Body | Ceramic Glaze / Sanitaryware |
| Surface Area | Lower | ~40% Higher |
| Glaze Smoothness | Moderate | Excellent |
| Pinhole / Crawling Risk | Moderate | Minimal |
| Typical K₂O (Potash) | 12–14% | 12–14% |
| Fe₂O₃ Max | <0.15% | <0.10% (ultra-low) |
| Price Premium vs 200M | Base | +30–60% |
| Whiteness Index | 85–90 | 90–95+ |
| Porcelain / Fine China | Not Recommended | Preferred |
Industry Applications
Where Each Grade Excels
🏗️ 200 Mesh — Tile Body
Floor & wall tile body mass · Vitrified tile body · Stoneware body · Terracotta body · Ceramic body slips · Ball clay blends · Brick manufacturing · Low-cost structural ceramics. Progressive melting creates the glassy matrix that binds body particles — controlled porosity is a feature, not a bug.
✨ 325 Mesh — Glaze & Frit
Ceramic glaze · Frit manufacturing · Sanitaryware glaze · Porcelain body · Fine bone china · Enamel coatings · Cosmetic-grade powders · Glass frit · Specialty paints. Finer particles dissolve completely in the glaze melt — zero pinholes, mirror-bright surfaces.
If it goes inside the tile (body) → 200 Mesh. If it goes on top of the tile (glaze) → 325 Mesh. Using 200 Mesh in glaze causes pinholes, crawling, and surface defects. Using 325 Mesh in tile body is overkill — you pay 30–60% more for no extra benefit.
Chemistry & Specifications
Aalok Overseas — XRF Verified Feldspar Specs
POTASH FELDSPAR (K₂O)
SiO₂: 64–66%
Al₂O₃: 18–20%
K₂O: 12–14%
Fe₂O₃: <0.10%
LOI: <0.5%
Fusion Pt: 1150–1180°C
SODA FELDSPAR (Na₂O)
SiO₂: 64–68%
Al₂O₃: 19–21%
Na₂O: 9–11%
Fe₂O₃: <0.10%
LOI: <0.5%
Fusion Pt: 1100–1120°C
MESH OPTIONS
80M — Pre-ground raw feed
100M — Coarse ceramic body
200M — Standard tile body
325M — Glaze / fine ceramic
400M — Porcelain / sanitaryware
500M — Cosmetics / specialty
Buyer FAQ
Top Questions from Ceramic Buyers Worldwide
Source from India's Best
Get the Right Feldspar Grade — Sampled, Certified & Shipped in 48 Hours
Whether you need 200 Mesh Potash Feldspar for tile body or 325 Mesh high-purity Soda Feldspar for ceramic glaze — Aalok Overseas supplies XRF-verified, SGS-certifiable Indian feldspar to manufacturers in 40+ countries.
👩💼 Export Director
Ms. Ankita Agrawal
Director — Exports & International Relations
Rajasthan, India · FOB/CFR/CIF
FeldsparIndia.com | Aalok Overseas — 200 Mesh & 325 Mesh Potash & Soda Feldspar · High Purity · India Export
feldsparindia.com | exports@aalokoverseas.com | +91-9004229525
Keywords: 200 mesh feldspar · 325 mesh feldspar · potash feldspar exporter · soda feldspar India · ceramic glaze feldspar · tile body feldspar · high purity feldspar · feldespato · feldspat · 长石 · फेल्डस्पार · Feldspat · polевой шпат · Rajasthan mineral exporter
Search
Recent Posts
- Production Process of Potassium & Sodium Feldspar Powders by aalok overseas
- HS & HSN Codes for Feldspar, Quartz & Muscovite Mica — The Complete Import/Export Guide by aalok overseas india
- Best High-Purity Soda Feldspar (Albite, NaAlSi₃O₈) — The World's Most Essential Ceramic & Glass Flux by aalok overseas india
- Feldspar Whiteness & Firing Temperature The Complete Guide for Ceramic, Tile & Glaze Manufacturers by aalok overseas india
- CAS Numbers of Feldspar & Its Elements Why They Matter for Customs, Trade & Global Compliance by aalok overseas india
Leave a Comment