Sodium Feldspar — Custom Grades for Glaze Wall Tile and Glass
Sodium feldspar (albite) supplied to specification rather than as a fixed catalogue grade. Indicative chemistry is Na2O around 11% and Al2O3 around 19.5%; the exact target is set against your application.
Supplied to specification, not as a fixed grade
Published grade codes and a fixed chemical specification are not available for sodium feldspar on the source site. Send the target chemistry and mesh you need and we will quote against it.
What This Line Is For
Glazes and wall tile bodies often need the melt to start earlier and run more freely than a potassium flux allows — but buying albite on a spot basis means the chemistry moves every shipment.
Lower melting onset
A sodium-dominant flux starts melting earlier, which suits glaze layers and fast wall tile cycles.
Specification to your application
Target chemistry is agreed per enquiry instead of taken from a fixed grade sheet.
Same mining lease
Sodium feldspar mineralisation sits inside our own lease alongside the nepheline and K-feldspar zones.
Same documentation
COA with every shipment, same packaging and port options as the rest of the range.
Typical Customers for Sodium Feldspar
Glaze and engobe formulators
Wall tile producers on fast firing cycles
Container and flat glass batch houses
Buyers consolidating several minerals into one shipment
Where It Comes From
Questions About Sodium Feldspar
What is nepheline syenite and why use it instead of feldspar?
It is a quartz-free igneous rock used as a flux in ceramics and glass. Against feldspar it carries more alumina (20-24% against 17-19%) and more total alkali (12-16% against 10-14%), melts earlier, gives a wider firing range and contains no free silica.
How low is the iron content?
K200 runs Fe2O3 at 0.08%, K100 at 0.12% and GP20 at 0.14%. Those levels come from multi-stage wet magnetic separation; dry-process plants working the same ore cannot reach them.
What is the minimum order quantity?
One 20ft container, which is about 24 tons — roughly 20 FIBC jumbo bags. Samples of 1-5 kg per grade are available before that for laboratory evaluation.
How is the material packed?
1200 kg FIBC jumbo bags as standard, or 50 kg PP woven bags. Bags carry product name, grade, batch number and weight. Custom packaging and private labelling are available.
Request a Sample of This Line
1-5 kg per grade by courier at our expense, with a Certificate of Analysis in the box.