Technical Guides
Relia · Manufacturing in China

Kaolin Selection for White Ceramic Bodies and Glazes

If you source kaolin for a white ceramic body or glaze, the firing result matters more than the raw powder colour.

Relia's listed grades can be reviewed for mineral form, oxide data and relevant impurities.

Define the requirement→Compare the grade→Review a trial
Role
Body or glaze requirement
Chemistry
Iron, titanium and relevant oxides
Firing
Colour and product acceptance
Beige kaolin powder with ceramic bodies and tiles
Beige kaolin powder with ceramic bodies and tiles
01 / 11
Relia · factory and material support

From Your Requirement to a Defined Grade

Relia manufactures kaolin and calcined-kaolin materials in China through its own factories.

We can review the kaolin enquiry with your body or glaze formulation and firing schedule. Give us the accepted reference, colour limits and any forming requirement. A hydrous and a calcined kaolin proposal should stay distinct, with the offered specification connected to the actual ceramic trial.

01

Role

Body or glaze requirement

02

Chemistry

Iron, titanium and relevant oxides

03

Mineral

Form and particle information

04

Firing

Colour and product acceptance

ONE APPLICATION · FOUR CONNECTED CHECKS
Use the same requirement and reporting basis for each candidate.
02 / 11
Material focus

Body and Glaze Priorities

The ceramic-kaolin entries carry different oxide information and incomplete fields. GLT-030, for example, lists specific iron and titanium values; other entries leave some fields blank. We use these differences to request an actual grade analysis, then compare fired colour and the relevant body or glaze properties.

Your systemRole

Body or glaze requirement

Material focusChemistry

Iron, titanium and relevant oxides

AcceptanceFiring

Colour and product acceptance

Connect the material choice with your process and the result you need.
Close view of beige kaolin powder
Close view of beige kaolin powder
03 / 11
Grade comparison

Ceramic Kaolin Data Before the Firing Trial

Grade information and how to use it
Review areaListed data and acceptance basisUse in your selection
GLT-030 · 5888The entry lists Fe2O3 0.21% and TiO2 0.45%. Confirm these against the offered grade and batch analysis.Use this item to define the candidate and the evidence needed for your application.
Kaolin · 5960The title gives 325–1250 mesh. Its catalogue iron field is 0.22 under a percent-labelled heading; obtain a clear analysis.Use the same particle measurement basis, then review dispersion and the result in your process.
Kaolin · 5838The entry covers 300–6000 mesh and leaves iron/titanium fields blank. A blank is not a zero-impurity result.Use the same particle measurement basis, then review dispersion and the result in your process.
Fired referenceKeep body or glaze recipe, firing schedule, fired colour and relevant dimensional or surface acceptance together.Match the stated measurement method and compare the appearance in your finished material.
Listed figures describe catalogue entries. Agree the actual offered specification and measurement basis.
04 / 11
Actual catalogue references

Compare the Product Candidates

Use these listed candidates to start a grade-specific discussion with us.

01
Material candidate
Calcined kaolin, 325–1250 mesh
Iron value 0.22% in the catalogue data. Agree the offered grading and analysis for your ceramic application.
02
Material candidate
GLT-030 calcined kaolin
Fe2O3 0.21%; TiO2 0.45% in the grade data. Match the offered analysis with your ceramic colour and impurity requirements.
03
Material candidate
Calcined kaolin, 300–6000 mesh range
Select one grading within the stated range and request the relevant iron and titanium analysis for your ceramic or coating trial.
Candidate entries are a starting point; the agreed specification and relevant evaluation support approval.
Browse the related industrial material grades05 / 11
Your trial and acceptance

A Shared Firing Comparison

Prepare the intended body or glaze under matched firing conditions. Compare fired colour with the relevant dimensions, surface and other acceptance tests. A raw-powder photograph cannot qualify ceramic whiteness, particularly when iron or titanium limits are important to your formulation.

Ceramic bodies and tiles and the material sample
Ceramic bodies and tiles and the material sample
06 / 11
TRIAL CHECK 01

Raw whiteness

Does not establish fired whiteness.

TRIAL CHECK 02

Different roles

Need their own limits.

TRIAL CHECK 03

Source changes

Review against the fired reference.

Use your current material as the reference and agree the acceptance limits before evaluation.
Manufacturing and grade controls

Classification, Impurity Control and Thermal Treatment

Kaolin preparation can include classification, impurity separation and drying; calcination is an additional structural change. That distinction matters to a ceramic formulation because raw-material behaviour and the fired result are separate evaluations. Review iron and other relevant oxide limits, then compare formed and fired specimens under the same schedule.

  1. Prepare the clay

    Mineral selection, size separation and appropriate purification define the starting kaolin grade.

  2. Control associated material

    Relevant impurity analysis establishes the outcome of any separation or purification stage.

  3. Distinguish the thermal route

    Hydrous and calcined material are different proposals; calcination changes the clay structure.

  4. Connect the end-use result

    Ceramic firing and binder-reactivity evaluation are different tasks and need their own accepted measurements.

Identity
Keep hydrous, calcined and reactive-addition claims clearly distinguished.
Chemistry
Retain actual oxide and relevant impurity requirements.
Performance
Use fired-colour or activity evidence appropriate to the intended application.
Keep the proposed grade's production route and measured acceptance limits together in the material specification.
07 / 11
From sample to supply

Approval with the Fired Reference

The accepted ceramic result and kaolin specification form the purchase basis. We discuss the proposed supply grade against that record. A new source or firing schedule provides a clear reason for another review.

Beige kaolin powder with plain sample packaging
Beige kaolin powder with plain sample packaging
08 / 11
Grade information → application evaluation → purchase specification.
Connected guidance

Continue Your Material Selection

REFINE YOUR SELECTION
Wollastonite Selection for Ceramic Formulations

If you buy wollastonite for ceramics, start with batch chemistry and the fired body or glaze you need.

CHECK THE EVIDENCE
Metakaolin Grade Selection for Cement and Mortar

If you are buying metakaolin for cement or mortar, ask for the evidence of reactivity your formulation actually needs.

PREPARE THE NEXT STEP
Quartz Sand Specifications for Glass Manufacturing

If you buy quartz sand for glassmaking, a high SiO2 figure must be accompanied by the impurity and grading data your glass batch needs.

Continue with the route relevant to your project.
09 / 11
Work with us

Start with Your Material Brief

Send us the details below to review a concrete grade proposal and the next evaluation step.

Application and process
Role: Body or glaze requirement
Material and grade
Your current grade or one of the relevant product links above.
Important requirements
Chemistry: Iron, titanium and relevant oxides; Firing: Colour and product acceptance
Purchase scope
Trial or order quantity, preferred package and destination.
Share the details you already have; we can clarify the remaining grade and order requirements together.

Qingdao Relia Industries Co., Ltd. · China manufacturing of industrial minerals, chemicals and the listed packaging products.

10 / 11
Contact the factory team

Speak with Our Materials Team

Qingdao Relia Industries Co., Ltd.

Tell Relia the material, application, required grade, quantity and destination. Include the product link or the key limits you already use, so the next conversation starts with a concrete proposal.

Email

[email protected]Send your material or product link.

WhatsApp

+1 404 203 0971Open a WhatsApp conversation in a new tab.

Phone

+86 18561762631Call to discuss your enquiry.

Qingdao contact address

Shuyuan Road, Qingdao,
Shandong, China
Qingdao contact address for the company.
Choose the contact channel that suits your enquiry.
11 / 11
Wollastonite Selection for Ceramic Formulations
Calcium Carbonate and Calcined Kaolin for Paper Coatings

Calcined Kaolin Clay Powder for Ceramics, 325–1250 Mesh, 45% SiO2

View details

GLT-030 Calcined Kaolin Clay for Ceramics, Porcelain and Paint, Industrial Powder

View details

Industrial Calcined Kaolin Clay Powder, 300–6000 Mesh, for Ceramic Glaze and Paint Evaluation

View details