Quality
Clay is a natural material. Our job is to make it behave the same, every lot, every load.
QC flow
01
Source control
Clay is sorted at the pit by colour and texture before it ever leaves the mine.
02
Lot sampling
Every stockpile and production lot is sampled and labelled.
03
Testing
Chemical and physical checks against the grade you ordered.
04
Approval
Only lots that pass are released for packing.
05
Packing
Clean, labelled bags or jumbo bags, sealed at the plant.
06
Dispatch with COA
A certificate of analysis travels with your order on request.
Testing
Test parameters depend on product and grade. Ask us for the latest typical values.
- Chemical analysis (Al₂O₃, SiO₂, Fe₂O₃, TiO₂)
- Loss on ignition (LOI)
- Moisture content
- Residue / mesh analysis
- Particle size
- Whiteness / brightness
- Plasticity & workability
- Fired colour
Need a COA or a sample?
We'll send a representative sample and the latest test report for your grade.