Mineral Grade Selection for Paper Filling
If you buy mineral filler for paper, select against the furnish, ash target and strength or optical limits at the wet end.
Relia's GCC, PCC and relevant kaolin candidates can be reviewed for that task.
- Wet end
- Furnish and retention context
- Filler
- Identity and particle data
- Running
- Retention and drainage criteria

Manufacturing Support for This Purchase
Relia manufactures calcium carbonate and kaolin materials in China through its own factories.
We can review the paper-filler enquiry with your furnish, process-water conditions and intended ash level. Give us the current mineral and the sheet properties you need to retain. GCC, PCC and kaolin are different proposals, so the specification and trial record should identify the actual selected material.
Wet end
Furnish and retention context
Filler
Identity and particle data
Sheet
Opacity and strength
Running
Retention and drainage criteria
The Wet-End Requirement
GCC, PCC and calcined kaolin offer different starting routes for a paper-filler enquiry. Our 1250 mesh GCC entry, XM-C102 PCC and XM-CK80 kaolin have distinct catalogue data. We keep wet-end retention and sheet performance in the same brief rather than choose a mineral only from powder whiteness.
Furnish and retention context
Identity and particle data
Retention and drainage criteria

Wet-End Filler Candidates for a Defined Paper Grade
| Review area | Listed data and acceptance basis | Use in your selection |
|---|---|---|
| GCC · 6535 | The title states 1250 mesh and 96% purity. Confirm distribution and the actual slurry or powder supply proposal. | Use the same particle measurement basis, then review dispersion and the result in your process. |
| XM-C102 · 5731 | The entry lists at least 98% purity, 400–2000 mesh options and oil absorption 24–27g/100g. Select one offered grade. | Use the same particle measurement basis, then review dispersion and the result in your process. |
| XM-CK80 · 5963 | The listed oxide fields include Al2O3 45% and SiO2 50±2%. This is a separate mineral route, not a carbonate grade. | Identify exactly what the percentage measures before normalising quotations or dosage. |
| Paper trial | Set furnish, retention system, target ash and the required sheet opacity, strength and operating acceptance. | Match the stated measurement method and compare the appearance in your finished material. |
Explore the Related Material Grades
Use these listed candidates to start a grade-specific discussion with us.
A Matched Paper Trial
Compare fillers at a defined retained-ash basis in your furnish, with retention chemistry recorded. Follow drainage, retention and relevant sheet properties together. A favourable powder colour does not establish a workable wet-end result if the intended sheet strength or operating requirement is missed.

Whiteness alone
Does not qualify a paper filler.
Coating approval
Does not replace a wet-end trial.
Changed furnish
Can change the result.
Mineral Route and Slurry Preparation
GCC is created by mineral size reduction; PCC is formed through precipitation; kaolin follows its own mineral-processing route. Their shapes and surfaces are therefore separate buying variables. Keep the proposed grade data with slurry preparation and wet-end trial conditions, and assess optical results alongside strength and runnability requirements.
Identify the mineral
GCC, PCC and kaolin are separate proposals with different particle structures.
Create the selected grade
Size reduction, precipitation or clay processing establishes the underlying material.
Prepare the slurry
Dispersal and supplied solids or moisture condition affect the material entering the paper process.
Connect the sheet result
Retention, optical and strength information belong to the furnish and trial conditions actually evaluated.
- Material
- Keep the actual carbonate or clay identity with the grade.
- Slurry
- Define the preparation method rather than assume powders form equivalent slurries.
- Paper
- Measure accepted optical and strength properties at a controlled ash or coat condition.
An Approved Paper Reference
Retain the accepted sheet results, process conditions and filler specification together. We discuss supply against that file. A change in furnish or wet-end system can require another review even when the mineral grade stays the same.

Connect the Next Purchasing Step
If you make paper coating colour, the mineral must work from slurry preparation through coating and printing.
If you are sourcing calcium carbonate from China, start with the product you make and the powder characteristics it needs.
If a promising sample needs to become a repeat purchase, make the approval record as clear as the trial result.
Start with Your Material Brief
Send us the details below to review a concrete grade proposal and the next evaluation step.
- Application and process
- Wet end: Furnish and retention context
- Material and grade
- Your current grade or one of the relevant product links above.
- Important requirements
- Filler: Identity and particle data; Running: Retention and drainage criteria
- Purchase scope
- Trial or order quantity, preferred package and destination.
Qingdao Relia Industries Co., Ltd. · China manufacturing of industrial minerals, chemicals and the listed packaging products.
10 / 11Speak 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.
Phone
+86 18561762631Call to discuss your enquiry.Qingdao contact address
Shuyuan Road, Qingdao,Shandong, ChinaQingdao contact address for the company.