Five Catalogue Grades and Sodium Feldspar to Specification
Everything we sell, on one page, with the chemistry that matters. Nothing here is blended from third-party ore — it all comes out of the Jiulongshan lease and our own wet-process plant.
Nepheline Powder
Our core product line, milled wet from a single deposit. Nepheline syenite brings more alumina and more alkali per tonne than feldspar and carries no free silica — which is why it fluxes harder, fires whiter and gives a wider firing window.
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
GP20Nepheline Powder GP20 High Expansion
A glaze-maker's nepheline — high calcium, highest total alkali in the range
Potassium Feldspar
Flotation-beneficiated K-feldspar from premium Henan deposits, in a standard grade and an ultra-white grade. Potassium feldspar produces a more viscous melt than sodium feldspar, which is what holds complex shapes through firing.
SY101Potassium Feldspar SY101 High K+Na
Flotation feldspar for bodies that have to hold their shape
TX101Potassium Feldspar TX101 Ultra White
K-feldspar taken through an extra purification stage for whiteness-critical work
Sodium Feldspar
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
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.
Which Grade Fits Which Job
| Grade | Key numbers | Typical use |
|---|---|---|
| K200 | Fe2O3 0.08%, 200 mesh | Porcelain, tableware, sanitary ware, white glazes |
| K100 | Fe2O3 0.12%, 100 mesh | Floor and wall tiles, volume bodies, glass batches |
| GP20 | CaO 5.34%, 15.63% total alkali | Matte glaze, full polished glaze, frit |
| SY101 | Flotation K-feldspar, high K+Na | Sanitary ware, electrical porcelain, glass |
| TX101 | Ultra white K-feldspar | Premium tableware, luxury tiles, high-end glazes |
| Na-feldspar | Na2O about 11%, Al2O3 about 19.5% | Glazes, wall tiles, glass batches |
Ordering Questions
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.
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.
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.
Not Sure Which Grade to Trial?
Send your current flux specification and the defect you are chasing. We will tell you which grade to sample and why.