Nepheline Syenite for Container Flat and Fibre Glass Batches
Soda ash is one of the most expensive lines in a glass batch, and the batch still needs alumina for chemical durability. Buying those two things separately costs more than buying them together.
Technical Requirements
- An alumina source that also supplies alkali
- Consistent chemistry batch to batch for furnace stability
- Lower melting energy without losing durability
- A material free of quartz for batch house handling
Why This Flux
Partial soda ash replacement
Nepheline supplies Na2O and K2O as flux, displacing part of the soda ash line.
5-10% raw material cost reduction
The figure the glass industry reports when nepheline replaces a portion of soda ash.
Al2O3 for chemical durability
Alumina improves resistance to attack, which is why it is specified in container and flat glass.
No free silica
Nepheline carries no free quartz, which matters in a batch house handling powder all shift.
Grades We Recommend Here
K100Nepheline Powder K100 Standard
The volume grade — the same deposit, ground coarser, priced for tonnage
SY101Potassium Feldspar SY101 High K+Na
Flotation feldspar for bodies that have to hold their shape
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 Glass Manufacturing Producers
Which grade should I start with for glass manufacturing?
Most customers start with K100 and SY101. 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.