Nepheline Syenite for Porcelain Tiles and Large Format Slabs
Large slabs amplify every material inconsistency. A flux variation that is invisible in a 600 mm tile shows up as warping across 2400 mm, and a slab that warps is scrap, not a second.
Technical Requirements
- Full vitrification with water absorption below 0.5%
- Ultra-low iron so the body fires brilliantly white
- Precise, repeatable particle size
- Batch-to-batch consistency documented on paper
Why This Flux
Vitrification at lower temperature than feldspar
Higher total alkali reaches full density without extending the cycle.
Fe2O3 0.08% in the K200 grade
Designed for porcelain bodies that must fire brilliantly white.
200 mesh for a consistent body
Fine, controlled particle size reduces the variation that large formats expose.
COA with every batch
Chemistry documented per shipment, which is what large-format producers actually audit.
Grades We Recommend Here
K200Nepheline Powder K200 Ultra White
The lowest iron grade we produce, for bodies that have to fire white
K100Nepheline Powder K100 Standard
The volume grade — the same deposit, ground coarser, priced for tonnage
Where the Material Comes From
More Application Guides
Feldspar & Nepheline for Art Pottery & Studio Ceramics
Studio ceramic bodies and experimental glazes
Application GuidesFeldspar & Nepheline for Container Glass (Bottles & Jars)
Cost reduction + durability improvement
Application GuidesFeldspar for Electrical Porcelain Insulators
K-feldspar high viscosity for shape retention
Application GuidesFeldspar & Nepheline for Fiberglass Production
Alumina source for E-glass and insulation
Application GuidesFeldspar for Opaque & White Ceramic Glazes
Optimal matrix for zirconium opacifiers
Application GuidesFeldspar for Vitreous China & Hotel Ware
Dual flux approach for commercial tableware
Questions From Porcelain Tiles and Large Slabs Producers
Which grade should I start with for porcelain tiles and large slabs?
Most customers start with K200 and K100. We ship 1-5 kg samples of each grade you want to compare, with a Certificate of Analysis so you can check our numbers against your own laboratory results.
Can I get samples before ordering?
Yes. We ship 1-5 kg of each grade by DHL or FedEx at our expense. Samples reach most international destinations in 5-7 days and each one includes a Certificate of Analysis.
What is the lead time?
Production runs 7-14 days from order confirmation. Standard grades are normally held in stock, so container loading often starts within 3-5 working days.
What quality documentation comes with a shipment?
A batch-specific Certificate of Analysis covering XRF chemistry, particle size, moisture and fired whiteness at 1200 degrees C. We send it for approval before loading, and originals travel with the shipping paperwork.
Send Us Your Current Recipe
Tell us the flux you use now and the defect you are chasing. We will recommend a grade and a substitution ratio for a first trial.