Use one name and one supplied form in the RFQ
The portfolio identifies this material as Kaolin (China Clay) and lists lumps and powder. Refer to that product name when requesting the grade, then state the form your production route requires. Ask the supplier to identify any processing description that is essential to your specification.
- State whether the inquiry is for ceramics, coatings, paper, or an industrial filler application.
- Specify lumps or powder and any size or preparation requirements for receiving the material.
- Include the current grade specification and the trial objective so the offered material can be compared on your buying basis.
Ask what the whiteness figures describe
The published product record reports whiteness at 86.17 and L* at 94.48. Treat those as separately named reference measurements and request their methods and sample preparation. The representative china clay COA lists appearance and form; ask for measured optical results if your approval depends on them.
- Name the whiteness or brightness measurement and minimum result required by your process.
- Ask whether the offered grade's optical report uses the same method as your existing specification.
- For ceramic trials, include the buyer's required firing and appearance evaluation in the approval plan.
Pair chemistry with particle checks
Published reference values include Fe2O3 at 0.29% and Al2O3 at 37.01%. The product record also gives a residue figure at 240# after two minutes of grinding. Ask which chemistry limits and particle test conditions apply to the supplied form being quoted, then obtain results for the proposed sample.
- List the SiO2, Al2O3, Fe2O3, or other chemistry checks your approval process requires.
- If using the residue reference, ask for the sieve designation, units, grinding preparation, and test method.
- For powder, request the size or residue report required by your formulation and confirm how moisture will be checked.
Approve the grade against your formulation
Keep the material sample and its documentation linked to the trial record. Define which formulation or production conditions your team will use and what results permit approval. Confirm the available bag format in the quotation; the product reference lists 50 kg and jumbo bag packing.
- Record sample identity, form, optical method, and particle report alongside the trial outcome.
- Write the required repeat-order limits and request the supplier's confirmation for the selected grade.
- Include quantity, receiving setup, destination, and the required document set in the RFQ.