Technical Guides
Relia · Manufacturing in China

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.

Define the requirement→Compare the grade→Review a trial
Wet end
Furnish and retention context
Filler
Identity and particle data
Running
Retention and drainage criteria
Paper-filler mineral powder with white paper samples
Paper-filler mineral powder with white paper samples
01 / 11
Relia · factory and material support

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.

01

Wet end

Furnish and retention context

02

Filler

Identity and particle data

03

Sheet

Opacity and strength

04

Running

Retention and drainage criteria

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

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.

Your systemWet end

Furnish and retention context

Material focusFiller

Identity and particle data

AcceptanceRunning

Retention and drainage criteria

Connect the material choice with your process and the result you need.
Close view of paper-filler mineral powder
Close view of paper-filler mineral powder
03 / 11
Grade comparison

Wet-End Filler Candidates for a Defined Paper Grade

Grade information and how to use it
Review areaListed data and acceptance basisUse in your selection
GCC · 6535The 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 · 5731The 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 · 5963The 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 trialSet 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.
Listed figures describe catalogue entries. Agree the actual offered specification and measurement basis.
04 / 11
Actual catalogue references

Explore the Related Material Grades

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

01
Material candidate
Ground calcium carbonate, 1250 mesh
96% purity designation. Specify the offered distribution and the powder or slurry proposal required by your paper or coating process.
02
Material candidate
XM-C102 precipitated calcium carbonate
Purity ≥98%; 400–2000 mesh options; oil absorption 24–27 g/100 g. Agree the specific grade and measurement basis.
03
Material candidate
XM-CK80 calcined kaolin
Al2O3 45%; SiO2 50±2%; moisture 0.08%. Connect the offered analysis with your ceramic or paper formulation.
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 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.

White paper samples and the material sample
White paper samples and the material sample
06 / 11
TRIAL CHECK 01

Whiteness alone

Does not qualify a paper filler.

TRIAL CHECK 02

Coating approval

Does not replace a wet-end trial.

TRIAL CHECK 03

Changed furnish

Can change the result.

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

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.

  1. Identify the mineral

    GCC, PCC and kaolin are separate proposals with different particle structures.

  2. Create the selected grade

    Size reduction, precipitation or clay processing establishes the underlying material.

  3. Prepare the slurry

    Dispersal and supplied solids or moisture condition affect the material entering the paper process.

  4. 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.
Keep the proposed grade's production route and measured acceptance limits together in the material specification.
07 / 11
From sample to supply

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.

Paper-filler mineral powder with plain sample packaging
Paper-filler mineral powder with plain sample packaging
08 / 11
Grade information → application evaluation → purchase specification.
Connected guidance

Connect the Next Purchasing Step

REFINE YOUR SELECTION
Calcium Carbonate and Calcined Kaolin for Paper Coatings

If you make paper coating colour, the mineral must work from slurry preparation through coating and printing.

CHECK THE EVIDENCE
Sourcing Industrial Calcium Carbonate from a Chinese Manufacturer

If you are sourcing calcium carbonate from China, start with the product you make and the powder characteristics it needs.

PREPARE THE NEXT STEP
Sample & Grade Evaluation: From Trials to Repeat Orders

If a promising sample needs to become a repeat purchase, make the approval record as clear as the trial result.

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
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.
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
Calcium Carbonate and Calcined Kaolin for Paper Coatings
Calcium Sulfate Whiskers for Polymer and Rubber Trials

Heavy Calcium Carbonate GCC Filler, 1250 Mesh, 96% Purity, for Paper and Coating Enquiries

View details

XM-C102 Precipitated Calcium Carbonate PCC Powder, 98% Minimum Purity, 400–2000 Mesh for Formulation Evaluation

View details

XM-CK80 Calcined Kaolin Clay for Ceramics and Papermaking, 45% Al2O3

View details